Merge branch 'master' into ISSUE-2962_masking_fieldsNamePattern

.github/ISSUE_TEMPLATE/bug.yml

@@ -0,0 +1,92 @@
+name: "\U0001F41E  Bug report"
+description: File a bug report
+labels: ["status/triage", "type/bug"]
+assignees: []
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Hi, thanks for raising the issue(-s), all contributions really matter!
+        Please, note that we'll close the issue without further explanation if you don't follow
+        this template and don't provide the information requested within this template.
+
+  - type: checkboxes
+    id: terms
+    attributes:
+      label: Issue submitter TODO list
+      description: By you checking these checkboxes we can be sure you've done the essential things.
+      options:
+        - label: I've looked up my issue in [FAQ](https://docs.kafka-ui.provectus.io/faq/common-problems)
+          required: true
+        - label: I've searched for an already existing issues [here](https://github.com/provectus/kafka-ui/issues)
+          required: true
+        - label: I've tried running `master`-labeled docker image and the issue still persists there
+          required: true
+        - label: I'm running a supported version of the application which is listed [here](https://github.com/provectus/kafka-ui/blob/master/SECURITY.md)
+          required: true
+
+  - type: textarea
+    attributes:
+      label: Describe the bug (actual behavior)
+      description: A clear and concise description of what the bug is. Use a list, if there is more than one problem
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Expected behavior
+      description: A clear and concise description of what you expected to happen
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Your installation details
+      description: |
+        How do you run the app? Please provide as much info as possible:
+        1. App version (commit hash in the top left corner of the UI)
+        2. Helm chart version, if you use one
+        3. Your application config. Please remove the sensitive info like passwords or API keys.
+        4. Any IAAC configs
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Steps to reproduce
+      description: |
+        Please write down the order of the actions required to reproduce the issue.
+        For the advanced setups/complicated issue, we might need you to provide
+        a minimal [reproducible example](https://stackoverflow.com/help/minimal-reproducible-example).
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Screenshots
+      description: |
+        If applicable, add screenshots to help explain your problem
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Logs
+      description: |
+        If applicable, *upload* screenshots to help explain your problem
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Additional context
+      description: |
+        Add any other context about the problem here. E.G.:
+        1. Are there any alternative scenarios (different data/methods/configuration/setup) you have tried?
+          Were they successful or the same issue occurred? Please provide steps as well.
+        2. Related issues (if there are any).
+        3. Logs (if available)
+        4. Is there any serious impact or behaviour on the end-user because of this issue, that can be overlooked?
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,64 +0,0 @@
----
-name: "\U0001F41E  Bug report"
-about: Create a bug report
-title: ''
-labels: status/triage, type/bug
-assignees: ''
-
----
-
-<!--
-
-We will close the issue without further explanation if you don't follow this template and don't provide the information requested within this template.
-
-Don't forget to check for existing issues/discussions regarding your proposal. We might already have it.
-https://github.com/provectus/kafka-ui/issues
-https://github.com/provectus/kafka-ui/discussions
-
--->
-
-<!--
-Please follow the naming conventions for bugs:
-<Feature/Area/Scope> :  <Compact, but specific problem summary> 
-Avoid generic titles, like “Topics: incorrect layout of message sorting drop-down list”. Better use something like: “Topics: Message sorting drop-down list overlaps the "Submit" button”.
-
--->
-
-**Describe the bug** (Actual behavior)
-<!--(A clear and concise description of what the bug is.Use a list, if there is more than one problem)-->
-
-**Expected behavior**
-<!--(A clear and concise description of what you expected to happen.)-->
-
-**Set up**
-<!--
-WE MIGHT CLOSE THE ISSUE without further explanation IF YOU DON'T PROVIDE THIS INFORMATION.
-
-How do you run the app? Please provide as much info as possible:
-1. App version (docker image version or check commit hash in the top left corner in UI)
-2. Helm chart version, if you use one
-3. Any IAAC configs
--->
-
-
-**Steps to Reproduce**
-<!-- We'd like you to provide an example setup (via docker-compose, helm, etc.) 
-to reproduce the problem, especially with a complex setups. -->
-
-1. 
-
-**Screenshots**
-<!--
-(If applicable, add screenshots to help explain your problem)
--->
-
-
-**Additional context**
-<!--
-Add any other context about the problem here. E.g.: 
-1. Are there any alternative scenarios (different data/methods/configuration/setup) you have tried? 
-   Were they successfull or same issue occured? Please provide steps as well.
-2. Related issues (if there are any).
-3. Logs (if available)
-4. Is there any serious impact or behaviour on the end-user because of this issue, that can be overlooked?
--->

.github/ISSUE_TEMPLATE/feature.yml

@@ -0,0 +1,66 @@
+name: "\U0001F680 Feature request"
+description: Propose a new feature
+labels: ["status/triage", "type/feature"]
+assignees: []
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Hi, thanks for raising the issue(-s), all contributions really matter!
+        Please, note that we'll close the issue without further explanation if you don't follow
+        this template and don't provide the information requested within this template.
+
+  - type: checkboxes
+    id: terms
+    attributes:
+      label: Issue submitter TODO list
+      description: By you checking these checkboxes we can be sure you've done the essential things.
+      options:
+        - label: I've searched for an already existing issues [here](https://github.com/provectus/kafka-ui/issues)
+          required: true
+        - label: I'm running a supported version of the application which is listed [here](https://github.com/provectus/kafka-ui/blob/master/SECURITY.md) and the feature is not present there
+          required: true
+
+  - type: textarea
+    attributes:
+      label: Is your proposal related to a problem?
+      description: |
+        Provide a clear and concise description of what the problem is.
+        For example, "I'm always frustrated when..."
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Describe the feature you're interested in
+      description: |
+        Provide a clear and concise description of what you want to happen.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Describe alternatives you've considered
+      description: |
+        Let us know about other solutions you've tried or researched.
+    validations:
+      required: false
+
+  - type: input
+    attributes:
+      label: Version you're running
+      description: |
+        Please provide the app version you're currently running:
+        1. App version (commit hash in the top left corner of the UI)
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Additional context
+      description: |
+        Is there anything else you can add about the proposal?
+        You might want to link to related issues here, if you haven't already.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,46 +0,0 @@
----
-name: "\U0001F680 Feature request"
-about: Propose a new feature
-title: ''
-labels: status/triage, type/feature
-assignees: ''
-
----
-
-<!--
-
-Don't forget to check for existing issues/discussions regarding your proposal. We might already have it.
-https://github.com/provectus/kafka-ui/issues
-https://github.com/provectus/kafka-ui/discussions
-
--->
-
-### Which version of the app are you running?
-<!-- Please provide docker image version or check commit hash in the top left corner in UI) -->
-
-### Is your proposal related to a problem?
-
-<!--
-  Provide a clear and concise description of what the problem is.
-  For example, "I'm always frustrated when..."
--->
-
-### Describe the solution you'd like
-
-<!--
-  Provide a clear and concise description of what you want to happen.
--->
-
-### Describe alternatives you've considered
-
-<!--
-  Let us know about other solutions you've tried or researched.
--->
-
-### Additional context
-
-<!--
-  Is there anything else you can add about the proposal?
-  You might want to link to related issues here, if you haven't already.
--->
-

.github/ISSUE_TEMPLATE/helm.yml

@@ -0,0 +1,92 @@
+name: "⎈ K8s/Helm problem report"
+description: "Report a problem with k8s/helm charts/etc"
+labels: ["status/triage", "scope/k8s"]
+assignees: []
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Hi, thanks for raising the issue(-s), all contributions really matter!
+        Please, note that we'll close the issue without further explanation if you don't follow
+        this template and don't provide the information requested within this template.
+
+  - type: checkboxes
+    id: terms
+    attributes:
+      label: Issue submitter TODO list
+      description: By you checking these checkboxes we can be sure you've done the essential things.
+      options:
+        - label: I've looked up my issue in [FAQ](https://docs.kafka-ui.provectus.io/faq/common-problems)
+          required: true
+        - label: I've searched for an already existing issues [here](https://github.com/provectus/kafka-ui/issues)
+          required: true
+        - label: I've tried running `master`-labeled docker image and the issue still persists there
+          required: true
+        - label: I'm running a supported version of the application which is listed [here](https://github.com/provectus/kafka-ui/blob/master/SECURITY.md)
+          required: true
+
+  - type: textarea
+    attributes:
+      label: Describe the bug (actual behavior)
+      description: A clear and concise description of what the bug is. Use a list, if there is more than one problem
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Expected behavior
+      description: A clear and concise description of what you expected to happen
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Your installation details
+      description: |
+        How do you run the app? Please provide as much info as possible:
+        1. App version (commit hash in the top left corner of the UI)
+        2. Helm chart version
+        3. Your application config. Please remove the sensitive info like passwords or API keys.
+        4. Any IAAC configs
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Steps to reproduce
+      description: |
+        Please write down the order of the actions required to reproduce the issue.
+        For the advanced setups/complicated issue, we might need you to provide
+        a minimal [reproducible example](https://stackoverflow.com/help/minimal-reproducible-example).
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Screenshots
+      description: |
+        If applicable, add screenshots to help explain your problem
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Logs
+      description: |
+        If applicable, *upload* screenshots to help explain your problem
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Additional context
+      description: |
+        Add any other context about the problem here. E.G.:
+        1. Are there any alternative scenarios (different data/methods/configuration/setup) you have tried?
+          Were they successful or the same issue occurred? Please provide steps as well.
+        2. Related issues (if there are any).
+        3. Logs (if available)
+        4. Is there any serious impact or behaviour on the end-user because of this issue, that can be overlooked?
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/k8s.md

@@ -1,52 +0,0 @@
----
-name: "⎈ K8s/Helm problem report"
-about: Report a problem with k8s/helm charts/etc
-title: ''
-labels: scope/k8s, status/triage
-assignees: azatsafin
-
----
-
-<!--
-
-Don't forget to check for existing issues/discussions regarding your proposal. We might already have it.
-https://github.com/provectus/kafka-ui/issues
-https://github.com/provectus/kafka-ui/discussions
-
--->
-
-**Describe the bug**
-<!--(A clear and concise description of what the bug is.)-->
-
-
-**Set up**
-<!--
-How do you run the app? Please provide as much info as possible:
-1. App version (docker image version or check commit hash in the top left corner in UI)
-2. Helm chart version, if you use one
-3. Any IAAC configs
-
-We might close the issue without further explanation if you don't provide such information.
--->
-
-
-**Steps to Reproduce**
-Steps to reproduce the behavior:
-
-1. 
-
-**Expected behavior**
-<!--
-(A clear and concise description of what you expected to happen)
--->
-
-**Screenshots**
-<!--
-(If applicable, add screenshots to help explain your problem)
--->
-
-
-**Additional context**
-<!--
-(Add any other context about the problem here)
--->

.github/dependabot.yml

@@ -8,8 +8,6 @@ updates:
     timezone: Europe/Moscow
   reviewers:
     - "Haarolean"
-  assignees:
-    - "Haarolean"
   labels:
     - "scope/backend"
     - "type/dependencies"
@@ -99,8 +97,6 @@ updates:
     timezone: Europe/Moscow
   reviewers:
     - "Haarolean"
-  assignees:
-    - "Haarolean"
   labels:
     - "scope/infrastructure"
     - "type/dependencies"

.github/workflows/block_merge.yml

@@ -6,7 +6,7 @@ jobs:
   block_merge:
     runs-on: ubuntu-latest
     steps:
-      - uses: mheap/github-action-required-labels@v3
+      - uses: mheap/github-action-required-labels@v4
         with:
           mode: exactly
           count: 0

.github/workflows/branch-deploy.yml

@@ -86,7 +86,7 @@ jobs:
 
       - name: make comment with private deployment link
         if: ${{ github.event.label.name == 'status/feature_testing' }}
-        uses: peter-evans/create-or-update-comment@v2
+        uses: peter-evans/create-or-update-comment@v3
         with:
           issue-number: ${{ github.event.pull_request.number }}
           body: |
@@ -94,7 +94,7 @@ jobs:
 
       - name: make comment with public deployment link
         if: ${{ github.event.label.name == 'status/feature_testing_public' }}
-        uses: peter-evans/create-or-update-comment@v2
+        uses: peter-evans/create-or-update-comment@v3
         with:
           issue-number: ${{ github.event.pull_request.number }}
           body: |

.github/workflows/branch-remove.yml

@@ -21,7 +21,7 @@ jobs:
           git add ../kafka-ui-from-branch/
           git commit -m "removed env:${{ needs.build.outputs.deploy }}" && git push || true
       - name: make comment with deployment link
-        uses: peter-evans/create-or-update-comment@v2
+        uses: peter-evans/create-or-update-comment@v3
         with:
           issue-number: ${{ github.event.pull_request.number }}
           body: |

.github/workflows/build-public-image.yml

@@ -65,7 +65,7 @@ jobs:
           cache-from: type=local,src=/tmp/.buildx-cache
           cache-to: type=local,dest=/tmp/.buildx-cache
       - name: make comment with private deployment link
-        uses: peter-evans/create-or-update-comment@v2
+        uses: peter-evans/create-or-update-comment@v3
         with:
           issue-number: ${{ github.event.pull_request.number }}
           body: |

.github/workflows/cve.yaml

@@ -55,7 +55,7 @@ jobs:
           cache-to: type=local,dest=/tmp/.buildx-cache
 
       - name: Run CVE checks
-        uses: aquasecurity/trivy-action@0.9.2
+        uses: aquasecurity/trivy-action@0.10.0
         with:
           image-ref: "provectuslabs/kafka-ui:${{ steps.build.outputs.version }}"
           format: "table"

.github/workflows/delete-public-image.yml

@@ -33,7 +33,7 @@ jobs:
                 --image-ids imageTag=${{ steps.extract_branch.outputs.tag }} \
                 --region us-east-1
       - name: make comment with private deployment link
-        uses: peter-evans/create-or-update-comment@v2
+        uses: peter-evans/create-or-update-comment@v3
         with:
           issue-number: ${{ github.event.pull_request.number }}
           body: |

.github/workflows/stale.yaml

@@ -7,7 +7,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v7
+      - uses: actions/stale@v8
         with:
           days-before-issue-stale: 7
           days-before-issue-close: 3

charts/kafka-ui/Chart.yaml

@@ -2,6 +2,6 @@ apiVersion: v2
 name: kafka-ui
 description: A Helm chart for kafka-UI
 type: application
-version: 0.6.1
-appVersion: v0.6.1
+version: 0.6.2
+appVersion: v0.6.2
 icon: https://github.com/provectus/kafka-ui/raw/master/documentation/images/kafka-ui-logo.png

documentation/compose/proto/values.proto

@@ -9,4 +9,6 @@ message MySpecificTopicValue {
 message MyValue {
   int32 version = 1;
   string payload = 2;
+  map<int32, string> intToStringMap = 3;
+  map<string, MyValue> strToObjMap  = 4;
 }

kafka-ui-api/pom.xml

@@ -21,6 +21,12 @@
     </properties>
 
     <dependencies>
+        <dependency>
+            <!--TODO: remove, when spring-boot fixed dependency to 6.0.8+ (6.0.7 has CVE) -->
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-core</artifactId>
+            <version>6.0.8</version>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-webflux</artifactId>
@@ -109,6 +115,12 @@
             <groupId>io.projectreactor.addons</groupId>
             <artifactId>reactor-extra</artifactId>
         </dependency>
+<!-- https://github.com/provectus/kafka-ui/pull/3693 -->
+        <dependency>
+            <groupId>org.json</groupId>
+            <artifactId>json</artifactId>
+            <version>${org.json.version}</version>
+        </dependency>
 
         <dependency>
             <groupId>org.springframework.boot</groupId>

kafka-ui-api/src/main/java/com/provectus/kafka/ui/config/ClustersProperties.java

@@ -58,6 +58,8 @@ public class ClustersProperties {
     Integer pollTimeoutMs;
     Integer partitionPollTimeout;
     Integer noDataEmptyPolls;
+    Integer maxPageSize;
+    Integer defaultPageSize;
   }
 
   @Data

kafka-ui-api/src/main/java/com/provectus/kafka/ui/controller/MessagesController.java

@@ -43,9 +43,6 @@ import reactor.core.scheduler.Schedulers;
 @Slf4j
 public class MessagesController extends AbstractController implements MessagesApi {
 
-  private static final int MAX_LOAD_RECORD_LIMIT = 100;
-  private static final int DEFAULT_LOAD_RECORD_LIMIT = 20;
-
   private final MessagesService messagesService;
   private final DeserializationService deserializationService;
   private final AccessControlService accessControlService;
@@ -91,8 +88,6 @@ public class MessagesController extends AbstractController implements MessagesAp
     seekType = seekType != null ? seekType : SeekTypeDTO.BEGINNING;
     seekDirection = seekDirection != null ? seekDirection : SeekDirectionDTO.FORWARD;
     filterQueryType = filterQueryType != null ? filterQueryType : MessageFilterTypeDTO.STRING_CONTAINS;
-    int recordsLimit =
-        Optional.ofNullable(limit).map(s -> Math.min(s, MAX_LOAD_RECORD_LIMIT)).orElse(DEFAULT_LOAD_RECORD_LIMIT);
 
     var positions = new ConsumerPosition(
         seekType,
@@ -103,7 +98,7 @@ public class MessagesController extends AbstractController implements MessagesAp
         ResponseEntity.ok(
             messagesService.loadMessages(
                 getCluster(clusterName), topicName, positions, q, filterQueryType,
-                recordsLimit, seekDirection, keySerde, valueSerde)
+                limit, seekDirection, keySerde, valueSerde)
         )
     );
 

kafka-ui-api/src/main/java/com/provectus/kafka/ui/mapper/ConsumerGroupMapper.java

@@ -11,8 +11,6 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
 import org.apache.kafka.common.Node;
 import org.apache.kafka.common.TopicPartition;
 
@@ -82,15 +80,8 @@ public class ConsumerGroupMapper {
       InternalConsumerGroup c, T consumerGroup) {
     consumerGroup.setGroupId(c.getGroupId());
     consumerGroup.setMembers(c.getMembers().size());
-
-    int numTopics = Stream.concat(
-        c.getOffsets().keySet().stream().map(TopicPartition::topic),
-        c.getMembers().stream()
-            .flatMap(m -> m.getAssignment().stream().map(TopicPartition::topic))
-    ).collect(Collectors.toSet()).size();
-
     consumerGroup.setMessagesBehind(c.getMessagesBehind());
-    consumerGroup.setTopics(numTopics);
+    consumerGroup.setTopics(c.getTopicNum());
     consumerGroup.setSimple(c.isSimple());
 
     Optional.ofNullable(c.getState())

kafka-ui-api/src/main/java/com/provectus/kafka/ui/model/InternalBroker.java

@@ -1,6 +1,7 @@
 package com.provectus.kafka.ui.model;
 
 import java.math.BigDecimal;
+import javax.annotation.Nullable;
 import lombok.Data;
 import org.apache.kafka.common.Node;
 
@@ -10,15 +11,27 @@ public class InternalBroker {
   private final Integer id;
   private final String host;
   private final Integer port;
-  private final BigDecimal bytesInPerSec;
-  private final BigDecimal bytesOutPerSec;
+  private final @Nullable BigDecimal bytesInPerSec;
+  private final @Nullable BigDecimal bytesOutPerSec;
+  private final @Nullable Integer partitionsLeader;
+  private final @Nullable Integer partitions;
+  private final @Nullable Integer inSyncPartitions;
+  private final @Nullable BigDecimal leadersSkew;
+  private final @Nullable BigDecimal partitionsSkew;
 
-  public InternalBroker(Node node, Statistics statistics) {
+  public InternalBroker(Node node,
+                        PartitionDistributionStats partitionDistribution,
+                        Statistics statistics) {
     this.id = node.id();
     this.host = node.host();
     this.port = node.port();
     this.bytesInPerSec = statistics.getMetrics().getBrokerBytesInPerSec().get(node.id());
     this.bytesOutPerSec = statistics.getMetrics().getBrokerBytesOutPerSec().get(node.id());
+    this.partitionsLeader = partitionDistribution.getPartitionLeaders().get(node);
+    this.partitions = partitionDistribution.getPartitionsCount().get(node);
+    this.inSyncPartitions = partitionDistribution.getInSyncPartitions().get(node);
+    this.leadersSkew = partitionDistribution.leadersSkew(node);
+    this.partitionsSkew = partitionDistribution.partitionsSkew(node);
   }
 
 }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/model/InternalConsumerGroup.java

@@ -5,6 +5,7 @@ import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
 import java.util.stream.Collectors;
+import java.util.stream.Stream;
 import lombok.Builder;
 import lombok.Data;
 import org.apache.kafka.clients.admin.ConsumerGroupDescription;
@@ -21,6 +22,7 @@ public class InternalConsumerGroup {
   private final Map<TopicPartition, Long> offsets;
   private final Map<TopicPartition, Long> endOffsets;
   private final Long messagesBehind;
+  private final Integer topicNum;
   private final String partitionAssignor;
   private final ConsumerGroupState state;
   private final Node coordinator;
@@ -44,22 +46,12 @@ public class InternalConsumerGroup {
     builder.simple(description.isSimpleConsumerGroup());
     builder.state(description.state());
     builder.partitionAssignor(description.partitionAssignor());
-    builder.members(
-        description.members().stream()
-            .map(m ->
-                InternalConsumerGroup.InternalMember.builder()
-                    .assignment(m.assignment().topicPartitions())
-                    .clientId(m.clientId())
-                    .groupInstanceId(m.groupInstanceId().orElse(""))
-                    .consumerId(m.consumerId())
-                    .clientId(m.clientId())
-                    .host(m.host())
-                    .build()
-            ).collect(Collectors.toList())
-    );
+    Collection<InternalMember> internalMembers = initInternalMembers(description);
+    builder.members(internalMembers);
     builder.offsets(groupOffsets);
     builder.endOffsets(topicEndOffsets);
     builder.messagesBehind(calculateMessagesBehind(groupOffsets, topicEndOffsets));
+    builder.topicNum(calculateTopicNum(groupOffsets, internalMembers));
     Optional.ofNullable(description.coordinator()).ifPresent(builder::coordinator);
     return builder.build();
   }
@@ -80,4 +72,31 @@ public class InternalConsumerGroup {
     return messagesBehind;
   }
 
+  private static Integer calculateTopicNum(Map<TopicPartition, Long> offsets, Collection<InternalMember> members) {
+
+    long topicNum = Stream.concat(
+        offsets.keySet().stream().map(TopicPartition::topic),
+        members.stream()
+            .flatMap(m -> m.getAssignment().stream().map(TopicPartition::topic))
+    ).distinct().count();
+
+    return Integer.valueOf((int) topicNum);
+
+  }
+
+  private static Collection<InternalMember> initInternalMembers(ConsumerGroupDescription description) {
+    return description.members().stream()
+        .map(m ->
+            InternalConsumerGroup.InternalMember.builder()
+                .assignment(m.assignment().topicPartitions())
+                .clientId(m.clientId())
+                .groupInstanceId(m.groupInstanceId().orElse(""))
+                .consumerId(m.consumerId())
+                .clientId(m.clientId())
+                .host(m.host())
+                .build()
+        ).collect(Collectors.toList());
+  }
+
+
 }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/model/PartitionDistributionStats.java

@@ -0,0 +1,93 @@
+package com.provectus.kafka.ui.model;
+
+import java.math.BigDecimal;
+import java.math.MathContext;
+import java.util.HashMap;
+import java.util.Map;
+import javax.annotation.Nullable;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.kafka.clients.admin.TopicDescription;
+import org.apache.kafka.common.Node;
+import org.apache.kafka.common.TopicPartitionInfo;
+
+@RequiredArgsConstructor(access = AccessLevel.PRIVATE)
+@Getter
+@Slf4j
+public class PartitionDistributionStats {
+
+  // avg skew will show unuseful results on low number of partitions
+  private static final int MIN_PARTITIONS_FOR_SKEW_CALCULATION = 50;
+
+  private static final MathContext ROUNDING_MATH_CTX = new MathContext(3);
+
+  private final Map<Node, Integer> partitionLeaders;
+  private final Map<Node, Integer> partitionsCount;
+  private final Map<Node, Integer> inSyncPartitions;
+  private final double avgLeadersCntPerBroker;
+  private final double avgPartitionsPerBroker;
+  private final boolean skewCanBeCalculated;
+
+  public static PartitionDistributionStats create(Statistics stats) {
+    return create(stats, MIN_PARTITIONS_FOR_SKEW_CALCULATION);
+  }
+
+  static PartitionDistributionStats create(Statistics stats, int minPartitionsForSkewCalculation) {
+    var partitionLeaders = new HashMap<Node, Integer>();
+    var partitionsReplicated = new HashMap<Node, Integer>();
+    var isr = new HashMap<Node, Integer>();
+    int partitionsCnt = 0;
+    for (TopicDescription td : stats.getTopicDescriptions().values()) {
+      for (TopicPartitionInfo tp : td.partitions()) {
+        partitionsCnt++;
+        tp.replicas().forEach(r -> incr(partitionsReplicated, r));
+        tp.isr().forEach(r -> incr(isr, r));
+        if (tp.leader() != null) {
+          incr(partitionLeaders, tp.leader());
+        }
+      }
+    }
+    int nodesWithPartitions = partitionsReplicated.size();
+    int partitionReplications = partitionsReplicated.values().stream().mapToInt(i -> i).sum();
+    var avgPartitionsPerBroker = nodesWithPartitions == 0 ? 0 : ((double) partitionReplications) / nodesWithPartitions;
+
+    int nodesWithLeaders = partitionLeaders.size();
+    int leadersCnt = partitionLeaders.values().stream().mapToInt(i -> i).sum();
+    var avgLeadersCntPerBroker = nodesWithLeaders == 0 ? 0 : ((double) leadersCnt) / nodesWithLeaders;
+
+    return new PartitionDistributionStats(
+        partitionLeaders,
+        partitionsReplicated,
+        isr,
+        avgLeadersCntPerBroker,
+        avgPartitionsPerBroker,
+        partitionsCnt >= minPartitionsForSkewCalculation
+    );
+  }
+
+  private static void incr(Map<Node, Integer> map, Node n) {
+    map.compute(n, (k, c) -> c == null ? 1 : ++c);
+  }
+
+  @Nullable
+  public BigDecimal partitionsSkew(Node node) {
+    return calculateAvgSkew(partitionsCount.get(node), avgPartitionsPerBroker);
+  }
+
+  @Nullable
+  public BigDecimal leadersSkew(Node node) {
+    return calculateAvgSkew(partitionLeaders.get(node), avgLeadersCntPerBroker);
+  }
+
+  // Returns difference (in percents) from average value, null if it can't be calculated
+  @Nullable
+  private BigDecimal calculateAvgSkew(@Nullable Integer value, double avgValue) {
+    if (avgValue == 0 || !skewCanBeCalculated) {
+      return null;
+    }
+    value = value == null ? 0 : value;
+    return new BigDecimal((value - avgValue) / avgValue * 100.0).round(ROUNDING_MATH_CTX);
+  }
+}

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/BrokerService.java

@@ -10,6 +10,7 @@ import com.provectus.kafka.ui.model.BrokersLogdirsDTO;
 import com.provectus.kafka.ui.model.InternalBroker;
 import com.provectus.kafka.ui.model.InternalBrokerConfig;
 import com.provectus.kafka.ui.model.KafkaCluster;
+import com.provectus.kafka.ui.model.PartitionDistributionStats;
 import com.provectus.kafka.ui.service.metrics.RawMetric;
 import java.util.Collections;
 import java.util.HashMap;
@@ -64,11 +65,13 @@ public class BrokerService {
   }
 
   public Flux<InternalBroker> getBrokers(KafkaCluster cluster) {
+    var stats = statisticsCache.get(cluster);
+    var partitionsDistribution = PartitionDistributionStats.create(stats);
     return adminClientService
         .get(cluster)
         .flatMap(ReactiveAdminClient::describeCluster)
         .map(description -> description.getNodes().stream()
-            .map(node -> new InternalBroker(node, statisticsCache.get(cluster)))
+            .map(node -> new InternalBroker(node, partitionsDistribution, stats))
             .collect(Collectors.toList()))
         .flatMapMany(Flux::fromIterable);
   }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/ConsumerGroupService.java

@@ -101,6 +101,9 @@ public class ConsumerGroupService {
   public record ConsumerGroupsPage(List<InternalConsumerGroup> consumerGroups, int totalPages) {
   }
 
+  private record GroupWithDescr(InternalConsumerGroup icg, ConsumerGroupDescription cgd) {
+  }
+
   public Mono<ConsumerGroupsPage> getConsumerGroupsPage(
       KafkaCluster cluster,
       int pageNum,
@@ -159,22 +162,19 @@ public class ConsumerGroupService {
                 sortAndPaginate(descriptions.values(), comparator, pageNum, perPage, sortOrderDto).toList());
       }
       case MESSAGES_BEHIND -> {
-        record GroupWithDescr(InternalConsumerGroup icg, ConsumerGroupDescription cgd) { }
 
         Comparator<GroupWithDescr> comparator = Comparator.comparingLong(gwd ->
             gwd.icg.getMessagesBehind() == null ? 0L : gwd.icg.getMessagesBehind());
 
-        var groupNames = groups.stream().map(ConsumerGroupListing::groupId).toList();
+        yield loadDescriptionsByInternalConsumerGroups(ac, groups, comparator, pageNum, perPage, sortOrderDto);
+      }
+
+      case TOPIC_NUM -> {
+
+        Comparator<GroupWithDescr> comparator = Comparator.comparingInt(gwd -> gwd.icg.getTopicNum());
+
+        yield loadDescriptionsByInternalConsumerGroups(ac, groups, comparator, pageNum, perPage, sortOrderDto);
 
-        yield ac.describeConsumerGroups(groupNames)
-            .flatMap(descriptionsMap -> {
-                  List<ConsumerGroupDescription> descriptions = descriptionsMap.values().stream().toList();
-                  return getConsumerGroups(ac, descriptions)
-                      .map(icg -> Streams.zip(icg.stream(), descriptions.stream(), GroupWithDescr::new).toList())
-                      .map(gwd -> sortAndPaginate(gwd, comparator, pageNum, perPage, sortOrderDto)
-                            .map(GroupWithDescr::cgd).toList());
-                }
-            );
       }
     };
   }
@@ -209,6 +209,27 @@ public class ConsumerGroupService {
         .map(cgs -> new ArrayList<>(cgs.values()));
   }
 
+
+  private Mono<List<ConsumerGroupDescription>> loadDescriptionsByInternalConsumerGroups(ReactiveAdminClient ac,
+                                                                                  List<ConsumerGroupListing> groups,
+                                                                                  Comparator<GroupWithDescr> comparator,
+                                                                                  int pageNum,
+                                                                                  int perPage,
+                                                                                  SortOrderDTO sortOrderDto) {
+    var groupNames = groups.stream().map(ConsumerGroupListing::groupId).toList();
+
+    return ac.describeConsumerGroups(groupNames)
+        .flatMap(descriptionsMap -> {
+              List<ConsumerGroupDescription> descriptions = descriptionsMap.values().stream().toList();
+              return getConsumerGroups(ac, descriptions)
+                  .map(icg -> Streams.zip(icg.stream(), descriptions.stream(), GroupWithDescr::new).toList())
+                  .map(gwd -> sortAndPaginate(gwd, comparator, pageNum, perPage, sortOrderDto)
+                      .map(GroupWithDescr::cgd).toList());
+            }
+        );
+
+  }
+
   public Mono<InternalConsumerGroup> getConsumerGroupDetail(KafkaCluster cluster,
                                                             String consumerGroupId) {
     return adminClientService.get(cluster)

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/MessagesService.java

@@ -1,6 +1,7 @@
 package com.provectus.kafka.ui.service;
 
 import com.google.common.util.concurrent.RateLimiter;
+import com.provectus.kafka.ui.config.ClustersProperties;
 import com.provectus.kafka.ui.emitter.BackwardRecordEmitter;
 import com.provectus.kafka.ui.emitter.ForwardRecordEmitter;
 import com.provectus.kafka.ui.emitter.MessageFilters;
@@ -20,13 +21,13 @@ import com.provectus.kafka.ui.serdes.ProducerRecordCreator;
 import com.provectus.kafka.ui.util.SslPropertiesUtil;
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.Properties;
 import java.util.concurrent.CompletableFuture;
 import java.util.function.Predicate;
 import java.util.function.UnaryOperator;
 import java.util.stream.Collectors;
 import javax.annotation.Nullable;
-import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.kafka.clients.admin.OffsetSpec;
@@ -44,16 +45,35 @@ import reactor.core.publisher.Mono;
 import reactor.core.scheduler.Schedulers;
 
 @Service
-@RequiredArgsConstructor
 @Slf4j
 public class MessagesService {
 
+  private static final int DEFAULT_MAX_PAGE_SIZE = 500;
+  private static final int DEFAULT_PAGE_SIZE = 100;
   // limiting UI messages rate to 20/sec in tailing mode
-  public static final int TAILING_UI_MESSAGE_THROTTLE_RATE = 20;
+  private static final int TAILING_UI_MESSAGE_THROTTLE_RATE = 20;
 
   private final AdminClientService adminClientService;
   private final DeserializationService deserializationService;
   private final ConsumerGroupService consumerGroupService;
+  private final int maxPageSize;
+  private final int defaultPageSize;
+
+  public MessagesService(AdminClientService adminClientService,
+                         DeserializationService deserializationService,
+                         ConsumerGroupService consumerGroupService,
+                         ClustersProperties properties) {
+    this.adminClientService = adminClientService;
+    this.deserializationService = deserializationService;
+    this.consumerGroupService = consumerGroupService;
+
+    var pollingProps = Optional.ofNullable(properties.getPolling())
+        .orElseGet(ClustersProperties.PollingProperties::new);
+    this.maxPageSize = Optional.ofNullable(pollingProps.getMaxPageSize())
+        .orElse(DEFAULT_MAX_PAGE_SIZE);
+    this.defaultPageSize = Optional.ofNullable(pollingProps.getDefaultPageSize())
+        .orElse(DEFAULT_PAGE_SIZE);
+  }
 
   private Mono<TopicDescription> withExistingTopic(KafkaCluster cluster, String topicName) {
     return adminClientService.get(cluster)
@@ -139,7 +159,7 @@ public class MessagesService {
                                                  ConsumerPosition consumerPosition,
                                                  @Nullable String query,
                                                  MessageFilterTypeDTO filterQueryType,
-                                                 int limit,
+                                                 @Nullable Integer pageSize,
                                                  SeekDirectionDTO seekDirection,
                                                  @Nullable String keySerde,
                                                  @Nullable String valueSerde) {
@@ -147,7 +167,13 @@ public class MessagesService {
         .flux()
         .publishOn(Schedulers.boundedElastic())
         .flatMap(td -> loadMessagesImpl(cluster, topic, consumerPosition, query,
-            filterQueryType, limit, seekDirection, keySerde, valueSerde));
+            filterQueryType, fixPageSize(pageSize), seekDirection, keySerde, valueSerde));
+  }
+
+  private int fixPageSize(@Nullable Integer pageSize) {
+    return Optional.ofNullable(pageSize)
+        .filter(ps -> ps > 0 && ps <= maxPageSize)
+        .orElse(defaultPageSize);
   }
 
   private Flux<TopicMessageEventDTO> loadMessagesImpl(KafkaCluster cluster,

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/jsonschema/AnyFieldSchema.java

@@ -4,9 +4,9 @@ import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
 // Specifies field that can contain any kind of value - primitive, complex and nulls
-public class AnyFieldSchema implements FieldSchema {
+class AnyFieldSchema implements FieldSchema {
 
-  public static AnyFieldSchema get() {
+  static AnyFieldSchema get() {
     return new AnyFieldSchema();
   }
 

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/jsonschema/ArrayFieldSchema.java

@@ -4,10 +4,10 @@ import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.node.ObjectNode;
 
-public class ArrayFieldSchema implements FieldSchema {
+class ArrayFieldSchema implements FieldSchema {
   private final FieldSchema itemsSchema;
 
-  public ArrayFieldSchema(FieldSchema itemsSchema) {
+  ArrayFieldSchema(FieldSchema itemsSchema) {
     this.itemsSchema = itemsSchema;
   }
 

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/jsonschema/EnumJsonType.java

@@ -7,10 +7,10 @@ import java.util.List;
 import java.util.Map;
 
 
-public class EnumJsonType extends JsonType {
+class EnumJsonType extends JsonType {
   private final List<String> values;
 
-  public EnumJsonType(List<String> values) {
+  EnumJsonType(List<String> values) {
     super(Type.ENUM);
     this.values = values;
   }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/jsonschema/FieldSchema.java

@@ -3,6 +3,6 @@ package com.provectus.kafka.ui.util.jsonschema;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
-public interface FieldSchema {
+interface FieldSchema {
   JsonNode toJsonNode(ObjectMapper mapper);
 }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/jsonschema/JsonType.java

@@ -4,7 +4,7 @@ import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import java.util.Map;
 
-public abstract class JsonType {
+abstract class JsonType {
 
   protected final Type type;
 
@@ -12,13 +12,13 @@ public abstract class JsonType {
     this.type = type;
   }
 
-  public Type getType() {
+  Type getType() {
     return type;
   }
 
-  public abstract Map<String, JsonNode> toJsonNode(ObjectMapper mapper);
+  abstract Map<String, JsonNode> toJsonNode(ObjectMapper mapper);
 
-  public enum Type {
+  enum Type {
     NULL,
     BOOLEAN,
     OBJECT,

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/jsonschema/MapFieldSchema.java

@@ -2,21 +2,27 @@ package com.provectus.kafka.ui.util.jsonschema;
 
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.BooleanNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.fasterxml.jackson.databind.node.TextNode;
+import javax.annotation.Nullable;
 
-public class MapFieldSchema implements FieldSchema {
-  private final FieldSchema itemSchema;
+class MapFieldSchema implements FieldSchema {
+  private final @Nullable FieldSchema itemSchema;
 
-  public MapFieldSchema(FieldSchema itemSchema) {
+  MapFieldSchema(@Nullable FieldSchema itemSchema) {
     this.itemSchema = itemSchema;
   }
 
+  MapFieldSchema() {
+    this(null);
+  }
+
   @Override
   public JsonNode toJsonNode(ObjectMapper mapper) {
     final ObjectNode objectNode = mapper.createObjectNode();
     objectNode.set("type", new TextNode(JsonType.Type.OBJECT.getName()));
-    objectNode.set("additionalProperties", itemSchema.toJsonNode(mapper));
+    objectNode.set("additionalProperties", itemSchema != null ? itemSchema.toJsonNode(mapper) : BooleanNode.TRUE);
     return objectNode;
   }
 }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/jsonschema/ObjectFieldSchema.java

@@ -9,24 +9,24 @@ import java.util.stream.Collectors;
 import reactor.util.function.Tuple2;
 import reactor.util.function.Tuples;
 
-public class ObjectFieldSchema implements FieldSchema {
+class ObjectFieldSchema implements FieldSchema {
 
-  public static final ObjectFieldSchema EMPTY = new ObjectFieldSchema(Map.of(), List.of());
+  static final ObjectFieldSchema EMPTY = new ObjectFieldSchema(Map.of(), List.of());
 
   private final Map<String, FieldSchema> properties;
   private final List<String> required;
 
-  public ObjectFieldSchema(Map<String, FieldSchema> properties,
+  ObjectFieldSchema(Map<String, FieldSchema> properties,
                            List<String> required) {
     this.properties = properties;
     this.required = required;
   }
 
-  public Map<String, FieldSchema> getProperties() {
+  Map<String, FieldSchema> getProperties() {
     return properties;
   }
 
-  public List<String> getRequired() {
+  List<String> getRequired() {
     return required;
   }
 

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/jsonschema/OneOfFieldSchema.java

@@ -5,11 +5,10 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import java.util.List;
 import java.util.stream.Collectors;
 
-public class OneOfFieldSchema implements FieldSchema {
+class OneOfFieldSchema implements FieldSchema {
   private final List<FieldSchema> schemaList;
 
-  public OneOfFieldSchema(
-      List<FieldSchema> schemaList) {
+  OneOfFieldSchema(List<FieldSchema> schemaList) {
     this.schemaList = schemaList;
   }
 

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/jsonschema/ProtobufSchemaConverter.java

@@ -94,6 +94,9 @@ public class ProtobufSchemaConverter implements JsonSchemaConverter<Descriptors.
     if (wellKnownTypeSchema.isPresent()) {
       return wellKnownTypeSchema.get();
     }
+    if (field.isMapField()) {
+      return new MapFieldSchema();
+    }
     final JsonType jsonType = convertType(field);
     FieldSchema fieldSchema;
     if (jsonType.getType().equals(JsonType.Type.OBJECT)) {
@@ -149,67 +152,47 @@ public class ProtobufSchemaConverter implements JsonSchemaConverter<Descriptors.
   }
 
   private JsonType convertType(Descriptors.FieldDescriptor field) {
-    switch (field.getType()) {
-      case INT32:
-      case FIXED32:
-      case SFIXED32:
-      case SINT32:
-        return new SimpleJsonType(
-            JsonType.Type.INTEGER,
-            Map.of(
-                "maximum", IntNode.valueOf(Integer.MAX_VALUE),
-                "minimum", IntNode.valueOf(Integer.MIN_VALUE)
-            )
-        );
-      case UINT32:
-        return new SimpleJsonType(
-            JsonType.Type.INTEGER,
-            Map.of(
-                "maximum", LongNode.valueOf(UnsignedInteger.MAX_VALUE.longValue()),
-                "minimum", IntNode.valueOf(0)
-            )
-        );
+    return switch (field.getType()) {
+      case INT32, FIXED32, SFIXED32, SINT32 -> new SimpleJsonType(
+          JsonType.Type.INTEGER,
+          Map.of(
+              "maximum", IntNode.valueOf(Integer.MAX_VALUE),
+              "minimum", IntNode.valueOf(Integer.MIN_VALUE)
+          )
+      );
+      case UINT32 -> new SimpleJsonType(
+          JsonType.Type.INTEGER,
+          Map.of(
+              "maximum", LongNode.valueOf(UnsignedInteger.MAX_VALUE.longValue()),
+              "minimum", IntNode.valueOf(0)
+          )
+      );
       //TODO: actually all *64 types will be printed with quotes (as strings),
       // see JsonFormat::printSingleFieldValue for impl. This can cause problems when you copy-paste from messages
       // table to `Produce` area - need to think if it is critical or not.
-      case INT64:
-      case FIXED64:
-      case SFIXED64:
-      case SINT64:
-        return new SimpleJsonType(
-            JsonType.Type.INTEGER,
-            Map.of(
-                "maximum", LongNode.valueOf(Long.MAX_VALUE),
-                "minimum", LongNode.valueOf(Long.MIN_VALUE)
-            )
-        );
-      case UINT64:
-        return new SimpleJsonType(
-            JsonType.Type.INTEGER,
-            Map.of(
-                "maximum", new BigIntegerNode(UnsignedLong.MAX_VALUE.bigIntegerValue()),
-                "minimum", LongNode.valueOf(0)
-            )
-        );
-      case MESSAGE:
-      case GROUP:
-        return new SimpleJsonType(JsonType.Type.OBJECT);
-      case ENUM:
-        return new EnumJsonType(
-            field.getEnumType().getValues().stream()
-                .map(Descriptors.EnumValueDescriptor::getName)
-                .collect(Collectors.toList())
-        );
-      case BYTES:
-      case STRING:
-        return new SimpleJsonType(JsonType.Type.STRING);
-      case FLOAT:
-      case DOUBLE:
-        return new SimpleJsonType(JsonType.Type.NUMBER);
-      case BOOL:
-        return new SimpleJsonType(JsonType.Type.BOOLEAN);
-      default:
-        return new SimpleJsonType(JsonType.Type.STRING);
-    }
+      case INT64, FIXED64, SFIXED64, SINT64 -> new SimpleJsonType(
+          JsonType.Type.INTEGER,
+          Map.of(
+              "maximum", LongNode.valueOf(Long.MAX_VALUE),
+              "minimum", LongNode.valueOf(Long.MIN_VALUE)
+          )
+      );
+      case UINT64 -> new SimpleJsonType(
+          JsonType.Type.INTEGER,
+          Map.of(
+              "maximum", new BigIntegerNode(UnsignedLong.MAX_VALUE.bigIntegerValue()),
+              "minimum", LongNode.valueOf(0)
+          )
+      );
+      case MESSAGE, GROUP -> new SimpleJsonType(JsonType.Type.OBJECT);
+      case ENUM -> new EnumJsonType(
+          field.getEnumType().getValues().stream()
+              .map(Descriptors.EnumValueDescriptor::getName)
+              .collect(Collectors.toList())
+      );
+      case BYTES, STRING -> new SimpleJsonType(JsonType.Type.STRING);
+      case FLOAT, DOUBLE -> new SimpleJsonType(JsonType.Type.NUMBER);
+      case BOOL -> new SimpleJsonType(JsonType.Type.BOOLEAN);
+    };
   }
 }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/jsonschema/RefFieldSchema.java

@@ -4,10 +4,10 @@ import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.node.TextNode;
 
-public class RefFieldSchema implements FieldSchema {
+class RefFieldSchema implements FieldSchema {
   private final String ref;
 
-  public RefFieldSchema(String ref) {
+  RefFieldSchema(String ref) {
     this.ref = ref;
   }
 
@@ -16,7 +16,7 @@ public class RefFieldSchema implements FieldSchema {
     return mapper.createObjectNode().set("$ref", new TextNode(ref));
   }
 
-  public String getRef() {
+  String getRef() {
     return ref;
   }
 }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/jsonschema/SimpleFieldSchema.java

@@ -3,10 +3,10 @@ package com.provectus.kafka.ui.util.jsonschema;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
-public class SimpleFieldSchema implements FieldSchema {
+class SimpleFieldSchema implements FieldSchema {
   private final JsonType type;
 
-  public SimpleFieldSchema(JsonType type) {
+  SimpleFieldSchema(JsonType type) {
     this.type = type;
   }
 

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/jsonschema/SimpleJsonType.java

@@ -6,15 +6,15 @@ import com.fasterxml.jackson.databind.node.TextNode;
 import com.google.common.collect.ImmutableMap;
 import java.util.Map;
 
-public class SimpleJsonType extends JsonType {
+class SimpleJsonType extends JsonType {
 
   private final Map<String, JsonNode> additionalTypeProperties;
 
-  public SimpleJsonType(Type type) {
+  SimpleJsonType(Type type) {
     this(type, Map.of());
   }
 
-  public SimpleJsonType(Type type, Map<String, JsonNode> additionalTypeProperties) {
+  SimpleJsonType(Type type, Map<String, JsonNode> additionalTypeProperties) {
     super(type);
     this.additionalTypeProperties = additionalTypeProperties;
   }

kafka-ui-api/src/test/java/com/provectus/kafka/ui/model/PartitionDistributionStatsTest.java

@@ -0,0 +1,83 @@
+package com.provectus.kafka.ui.model;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import com.provectus.kafka.ui.service.ReactiveAdminClient;
+import java.math.BigDecimal;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import org.apache.kafka.clients.admin.TopicDescription;
+import org.apache.kafka.common.Node;
+import org.apache.kafka.common.TopicPartitionInfo;
+import org.assertj.core.data.Percentage;
+import org.junit.jupiter.api.Test;
+
+class PartitionDistributionStatsTest {
+
+  @Test
+  void skewCalculatedBasedOnPartitionsCounts() {
+    Node n1 = new Node(1, "n1", 9092);
+    Node n2 = new Node(2, "n2", 9092);
+    Node n3 = new Node(3, "n3", 9092);
+    Node n4 = new Node(4, "n4", 9092);
+
+    var stats = PartitionDistributionStats.create(
+        Statistics.builder()
+            .clusterDescription(
+                new ReactiveAdminClient.ClusterDescription(null, "test", Set.of(n1, n2, n3), null))
+            .topicDescriptions(
+                Map.of(
+                    "t1", new TopicDescription(
+                        "t1", false,
+                        List.of(
+                            new TopicPartitionInfo(0, n1, List.of(n1, n2), List.of(n1, n2)),
+                            new TopicPartitionInfo(1, n2, List.of(n2, n3), List.of(n2, n3))
+                        )
+                    ),
+                    "t2", new TopicDescription(
+                        "t2", false,
+                        List.of(
+                            new TopicPartitionInfo(0, n1, List.of(n1, n2), List.of(n1, n2)),
+                            new TopicPartitionInfo(1, null, List.of(n2, n1), List.of(n1))
+                        )
+                    )
+                )
+            )
+            .build(), 4
+    );
+
+    assertThat(stats.getPartitionLeaders())
+        .containsExactlyInAnyOrderEntriesOf(Map.of(n1, 2, n2, 1));
+    assertThat(stats.getPartitionsCount())
+        .containsExactlyInAnyOrderEntriesOf(Map.of(n1, 3, n2, 4, n3, 1));
+    assertThat(stats.getInSyncPartitions())
+        .containsExactlyInAnyOrderEntriesOf(Map.of(n1, 3, n2, 3, n3, 1));
+
+    // Node(partitions): n1(3), n2(4), n3(1), n4(0)
+    // average partitions cnt = (3+4+1) / 3 = 2.666 (counting only nodes with partitions!)
+    assertThat(stats.getAvgPartitionsPerBroker())
+        .isCloseTo(2.666, Percentage.withPercentage(1));
+
+    assertThat(stats.partitionsSkew(n1))
+        .isCloseTo(BigDecimal.valueOf(12.5), Percentage.withPercentage(1));
+    assertThat(stats.partitionsSkew(n2))
+        .isCloseTo(BigDecimal.valueOf(50), Percentage.withPercentage(1));
+    assertThat(stats.partitionsSkew(n3))
+        .isCloseTo(BigDecimal.valueOf(-62.5), Percentage.withPercentage(1));
+    assertThat(stats.partitionsSkew(n4))
+        .isCloseTo(BigDecimal.valueOf(-100), Percentage.withPercentage(1));
+
+    //  Node(leaders): n1(2), n2(1), n3(0), n4(0)
+    //  average leaders cnt = (2+1) / 2 = 1.5 (counting only nodes with leaders!)
+    assertThat(stats.leadersSkew(n1))
+        .isCloseTo(BigDecimal.valueOf(33.33), Percentage.withPercentage(1));
+    assertThat(stats.leadersSkew(n2))
+        .isCloseTo(BigDecimal.valueOf(-33.33), Percentage.withPercentage(1));
+    assertThat(stats.leadersSkew(n3))
+        .isCloseTo(BigDecimal.valueOf(-100), Percentage.withPercentage(1));
+    assertThat(stats.leadersSkew(n4))
+        .isCloseTo(BigDecimal.valueOf(-100), Percentage.withPercentage(1));
+  }
+
+}

kafka-ui-api/src/test/java/com/provectus/kafka/ui/util/jsonschema/ProtobufSchemaConverterTest.java

@@ -59,8 +59,10 @@ class ProtobufSchemaConverterTest {
                 TestMsg outer_ref = 2;
                 EmbeddedMsg self_ref = 3;
             }
-        }""";
 
+            map<int32, string> intToStringMap = 21;
+            map<string, EmbeddedMsg> strToObjMap  = 22;
+        }""";
 
     String expectedJsonSchema = """
         {
@@ -109,7 +111,9 @@ class ProtobufSchemaConverterTest {
                         "v2": { "type": [ "number", "string", "object", "array", "boolean", "null" ] },
                         "uint32_w_field": { "type": "integer", "maximum": 4294967295, "minimum": 0 },
                         "bool_w_field": { "type": "boolean" },
-                        "uint64_w_field": { "type": "integer", "maximum": 18446744073709551615, "minimum": 0 }
+                        "uint64_w_field": { "type": "integer", "maximum": 18446744073709551615, "minimum": 0 },
+                        "strToObjMap": { "type": "object", "additionalProperties": true },
+                        "intToStringMap": { "type": "object", "additionalProperties": true }
                     }
                 },
                 "test.TestMsg.EmbeddedMsg": {

kafka-ui-contract/src/main/resources/swagger/kafka-ui-api.yaml

@@ -2375,6 +2375,16 @@ components:
           type: number
         bytesOutPerSec:
           type: number
+        partitionsLeader:
+          type: integer
+        partitions:
+          type: integer
+        inSyncPartitions:
+          type: integer
+        partitionsSkew:
+          type: number
+        leadersSkew:
+          type: number
       required:
         - id
 
@@ -2441,6 +2451,7 @@ components:
         - MEMBERS
         - STATE
         - MESSAGES_BEHIND
+        - TOPIC_NUM
 
     ConsumerGroupsPageResponse:
       type: object
@@ -3485,6 +3496,10 @@ components:
                       type: integer
                     noDataEmptyPolls:
                       type: integer
+                    maxPageSize:
+                      type: integer
+                    defaultPageSize:
+                      type: integer
                 adminClientTimeout:
                   type: integer
                 internalTopicPrefix:

kafka-ui-e2e-checks/src/main/java/com/provectus/kafka/ui/services/ApiService.java

@@ -36,29 +36,31 @@ import org.springframework.web.reactive.function.client.WebClientResponseExcepti
 @Slf4j
 public class ApiService extends BaseSource {
 
+  private final ApiClient apiClient = new ApiClient().setBasePath(BASE_API_URL);
+
   @SneakyThrows
   private TopicsApi topicApi() {
-    return new TopicsApi(new ApiClient().setBasePath(BASE_API_URL));
+    return new TopicsApi(apiClient);
   }
 
   @SneakyThrows
   private SchemasApi schemaApi() {
-    return new SchemasApi(new ApiClient().setBasePath(BASE_API_URL));
+    return new SchemasApi(apiClient);
   }
 
   @SneakyThrows
   private KafkaConnectApi connectorApi() {
-    return new KafkaConnectApi(new ApiClient().setBasePath(BASE_API_URL));
+    return new KafkaConnectApi(apiClient);
   }
 
   @SneakyThrows
   private MessagesApi messageApi() {
-    return new MessagesApi(new ApiClient().setBasePath(BASE_API_URL));
+    return new MessagesApi(apiClient);
   }
 
   @SneakyThrows
   private KsqlApi ksqlApi() {
-    return new KsqlApi(new ApiClient().setBasePath(BASE_API_URL));
+    return new KsqlApi(apiClient);
   }
 
   @SneakyThrows

kafka-ui-e2e-checks/src/test/java/com/provectus/kafka/ui/manualsuite/backlog/SmokeBacklog.java

@@ -2,6 +2,7 @@ package com.provectus.kafka.ui.manualsuite.backlog;
 
 import static com.provectus.kafka.ui.qasesuite.BaseQaseTest.BROKERS_SUITE_ID;
 import static com.provectus.kafka.ui.qasesuite.BaseQaseTest.KSQL_DB_SUITE_ID;
+import static com.provectus.kafka.ui.qasesuite.BaseQaseTest.SCHEMAS_SUITE_ID;
 import static com.provectus.kafka.ui.qasesuite.BaseQaseTest.TOPICS_PROFILE_SUITE_ID;
 import static com.provectus.kafka.ui.utilities.qase.enums.State.TO_BE_AUTOMATED;
 
@@ -35,37 +36,65 @@ public class SmokeBacklog extends BaseManualTest {
   }
 
   @Automation(state = TO_BE_AUTOMATED)
-  @Suite(id = KSQL_DB_SUITE_ID)
-  @QaseId(284)
+  @Suite(id = BROKERS_SUITE_ID)
+  @QaseId(331)
   @Test
   public void testCaseD() {
   }
 
   @Automation(state = TO_BE_AUTOMATED)
   @Suite(id = BROKERS_SUITE_ID)
-  @QaseId(331)
+  @QaseId(332)
   @Test
   public void testCaseE() {
   }
 
   @Automation(state = TO_BE_AUTOMATED)
-  @Suite(id = BROKERS_SUITE_ID)
-  @QaseId(332)
+  @Suite(id = TOPICS_PROFILE_SUITE_ID)
+  @QaseId(335)
   @Test
   public void testCaseF() {
   }
 
   @Automation(state = TO_BE_AUTOMATED)
   @Suite(id = TOPICS_PROFILE_SUITE_ID)
-  @QaseId(335)
+  @QaseId(336)
   @Test
   public void testCaseG() {
   }
 
   @Automation(state = TO_BE_AUTOMATED)
   @Suite(id = TOPICS_PROFILE_SUITE_ID)
-  @QaseId(336)
+  @QaseId(343)
   @Test
   public void testCaseH() {
   }
+
+  @Automation(state = TO_BE_AUTOMATED)
+  @Suite(id = KSQL_DB_SUITE_ID)
+  @QaseId(344)
+  @Test
+  public void testCaseI() {
+  }
+
+  @Automation(state = TO_BE_AUTOMATED)
+  @Suite(id = SCHEMAS_SUITE_ID)
+  @QaseId(345)
+  @Test
+  public void testCaseJ() {
+  }
+
+  @Automation(state = TO_BE_AUTOMATED)
+  @Suite(id = SCHEMAS_SUITE_ID)
+  @QaseId(346)
+  @Test
+  public void testCaseK() {
+  }
+
+  @Automation(state = TO_BE_AUTOMATED)
+  @Suite(id = TOPICS_PROFILE_SUITE_ID)
+  @QaseId(347)
+  @Test
+  public void testCaseL() {
+  }
 }

kafka-ui-e2e-checks/src/test/java/com/provectus/kafka/ui/manualsuite/suite/TopicsTest.java

@@ -92,4 +92,28 @@ public class TopicsTest extends BaseManualTest {
   @Test
   public void testCaseN() {
   }
+
+  @Automation(state = NOT_AUTOMATED)
+  @QaseId(337)
+  @Test
+  public void testCaseO() {
+  }
+
+  @Automation(state = NOT_AUTOMATED)
+  @QaseId(339)
+  @Test
+  public void testCaseP() {
+  }
+
+  @Automation(state = NOT_AUTOMATED)
+  @QaseId(341)
+  @Test
+  public void testCaseQ() {
+  }
+
+  @Automation(state = NOT_AUTOMATED)
+  @QaseId(342)
+  @Test
+  public void testCaseR() {
+  }
 }

kafka-ui-e2e-checks/src/test/java/com/provectus/kafka/ui/manualsuite/suite/WizardTest.java

@@ -14,4 +14,16 @@ public class WizardTest extends BaseManualTest {
   @Test
   public void testCaseA() {
   }
+
+  @Automation(state = NOT_AUTOMATED)
+  @QaseId(338)
+  @Test
+  public void testCaseB() {
+  }
+
+  @Automation(state = NOT_AUTOMATED)
+  @QaseId(340)
+  @Test
+  public void testCaseC() {
+  }
 }

kafka-ui-e2e-checks/src/test/java/com/provectus/kafka/ui/smokesuite/ksqldb/KsqlDbTest.java

@@ -1,5 +1,6 @@
 package com.provectus.kafka.ui.smokesuite.ksqldb;
 
+import static com.provectus.kafka.ui.pages.ksqldb.enums.KsqlMenuTabs.STREAMS;
 import static com.provectus.kafka.ui.pages.ksqldb.enums.KsqlQueryConfig.SHOW_TABLES;
 import static com.provectus.kafka.ui.pages.panels.enums.MenuItem.KSQL_DB;
 import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic;
@@ -39,17 +40,21 @@ public class KsqlDbTest extends BaseTest {
         FIRST_TABLE.getName(), SECOND_TABLE.getName()));
   }
 
-  @QaseId(86)
+  @QaseId(284)
   @Test(priority = 1)
-  public void clearResultsForExecutedRequest() {
-    navigateToKsqlDbAndExecuteRequest(SHOW_TABLES.getQuery());
+  public void streamsAndTablesVisibilityCheck() {
+    naviSideBar
+        .openSideMenu(KSQL_DB);
+    ksqlDbList
+        .waitUntilScreenReady();
     SoftAssert softly = new SoftAssert();
-    softly.assertTrue(ksqlQueryForm.areResultsVisible(), "areResultsVisible()");
-    softly.assertAll();
-    ksqlQueryForm
-        .clickClearResultsBtn();
-    softly.assertFalse(ksqlQueryForm.areResultsVisible(), "areResultsVisible()");
+    softly.assertTrue(ksqlDbList.getTableByName(FIRST_TABLE.getName()).isVisible(), "getTableByName()");
+    softly.assertTrue(ksqlDbList.getTableByName(SECOND_TABLE.getName()).isVisible(), "getTableByName()");
     softly.assertAll();
+    ksqlDbList
+        .openDetailsTab(STREAMS)
+        .waitUntilScreenReady();
+    Assert.assertTrue(ksqlDbList.getStreamByName(DEFAULT_STREAM.getName()).isVisible(), "getStreamByName()");
   }
 
   @QaseId(276)
@@ -68,11 +73,31 @@ public class KsqlDbTest extends BaseTest {
     navigateToKsqlDbAndExecuteRequest(SHOW_TABLES.getQuery());
     SoftAssert softly = new SoftAssert();
     softly.assertTrue(ksqlQueryForm.areResultsVisible(), "areResultsVisible()");
-    softly.assertTrue(ksqlQueryForm.getItemByName(FIRST_TABLE.getName()).isVisible(), "getItemByName()");
-    softly.assertTrue(ksqlQueryForm.getItemByName(SECOND_TABLE.getName()).isVisible(), "getItemByName()");
+    softly.assertTrue(ksqlQueryForm.getItemByName(FIRST_TABLE.getName()).isVisible(),
+        String.format("getItemByName(%s)", FIRST_TABLE.getName()));
+    softly.assertTrue(ksqlQueryForm.getItemByName(SECOND_TABLE.getName()).isVisible(),
+        String.format("getItemByName(%s)", SECOND_TABLE.getName()));
+    softly.assertAll();
+  }
+
+  @QaseId(86)
+  @Test(priority = 4)
+  public void clearResultsForExecutedRequest() {
+    navigateToKsqlDbAndExecuteRequest(SHOW_TABLES.getQuery());
+    SoftAssert softly = new SoftAssert();
+    softly.assertTrue(ksqlQueryForm.areResultsVisible(), "areResultsVisible()");
+    softly.assertAll();
+    ksqlQueryForm
+        .clickClearResultsBtn();
+    softly.assertFalse(ksqlQueryForm.areResultsVisible(), "areResultsVisible()");
     softly.assertAll();
   }
 
+  @AfterClass(alwaysRun = true)
+  public void afterClass() {
+    TOPIC_NAMES_LIST.forEach(topicName -> apiService.deleteTopic(topicName));
+  }
+
   @Step
   private void navigateToKsqlDbAndExecuteRequest(String query) {
     naviSideBar
@@ -85,9 +110,4 @@ public class KsqlDbTest extends BaseTest {
         .setQuery(query)
         .clickExecuteBtn(query);
   }
-
-  @AfterClass(alwaysRun = true)
-  public void afterClass() {
-    TOPIC_NAMES_LIST.forEach(topicName -> apiService.deleteTopic(topicName));
-  }
 }

kafka-ui-e2e-checks/src/test/java/com/provectus/kafka/ui/smokesuite/topics/TopicsTest.java

@@ -486,11 +486,7 @@ public class TopicsTest extends BaseTest {
     topicDetails
         .waitUntilScreenReady();
     TOPIC_LIST.add(topicToCopy);
-    SoftAssert softly = new SoftAssert();
-    softly.assertTrue(topicDetails.isAlertWithMessageVisible(SUCCESS, "Topic successfully created."),
-        "isAlertWithMessageVisible()");
-    softly.assertTrue(topicDetails.isTopicHeaderVisible(topicToCopy.getName()), "isTopicHeaderVisible()");
-    softly.assertAll();
+    Assert.assertTrue(topicDetails.isTopicHeaderVisible(topicToCopy.getName()), "isTopicHeaderVisible()");
   }
 
   @AfterClass(alwaysRun = true)

kafka-ui-react-app/src/components/Connect/List/ActionsCell.tsx

@@ -1,26 +1,41 @@
 import React from 'react';
-import { FullConnectorInfo } from 'generated-sources';
+import {
+  Action,
+  ConnectorAction,
+  ConnectorState,
+  FullConnectorInfo,
+  ResourceType,
+} from 'generated-sources';
 import { CellContext } from '@tanstack/react-table';
 import { ClusterNameRoute } from 'lib/paths';
 import useAppParams from 'lib/hooks/useAppParams';
 import { Dropdown, DropdownItem } from 'components/common/Dropdown';
-import { useDeleteConnector } from 'lib/hooks/api/kafkaConnect';
+import {
+  useDeleteConnector,
+  useUpdateConnectorState,
+} from 'lib/hooks/api/kafkaConnect';
 import { useConfirm } from 'lib/hooks/useConfirm';
+import { useIsMutating } from '@tanstack/react-query';
+import { ActionDropdownItem } from 'components/common/ActionComponent';
 
 const ActionsCell: React.FC<CellContext<FullConnectorInfo, unknown>> = ({
   row,
 }) => {
-  const { connect, name } = row.original;
-
+  const { connect, name, status } = row.original;
   const { clusterName } = useAppParams<ClusterNameRoute>();
-
+  const mutationsNumber = useIsMutating();
+  const isMutating = mutationsNumber > 0;
   const confirm = useConfirm();
   const deleteMutation = useDeleteConnector({
     clusterName,
     connectName: connect,
     connectorName: name,
   });
-
+  const stateMutation = useUpdateConnectorState({
+    clusterName,
+    connectName: connect,
+    connectorName: name,
+  });
   const handleDelete = () => {
     confirm(
       <>
@@ -31,8 +46,66 @@ const ActionsCell: React.FC<CellContext<FullConnectorInfo, unknown>> = ({
       }
     );
   };
+  // const stateMutation = useUpdateConnectorState(routerProps);
+  const resumeConnectorHandler = () =>
+    stateMutation.mutateAsync(ConnectorAction.RESUME);
+  const restartConnectorHandler = () =>
+    stateMutation.mutateAsync(ConnectorAction.RESTART);
+
+  const restartAllTasksHandler = () =>
+    stateMutation.mutateAsync(ConnectorAction.RESTART_ALL_TASKS);
+
+  const restartFailedTasksHandler = () =>
+    stateMutation.mutateAsync(ConnectorAction.RESTART_FAILED_TASKS);
+
   return (
     <Dropdown>
+      {status.state === ConnectorState.PAUSED && (
+        <ActionDropdownItem
+          onClick={resumeConnectorHandler}
+          disabled={isMutating}
+          permission={{
+            resource: ResourceType.CONNECT,
+            action: Action.EDIT,
+            value: name,
+          }}
+        >
+          Resume
+        </ActionDropdownItem>
+      )}
+      <ActionDropdownItem
+        onClick={restartConnectorHandler}
+        disabled={isMutating}
+        permission={{
+          resource: ResourceType.CONNECT,
+          action: Action.EDIT,
+          value: name,
+        }}
+      >
+        Restart Connector
+      </ActionDropdownItem>
+      <ActionDropdownItem
+        onClick={restartAllTasksHandler}
+        disabled={isMutating}
+        permission={{
+          resource: ResourceType.CONNECT,
+          action: Action.EDIT,
+          value: name,
+        }}
+      >
+        Restart All Tasks
+      </ActionDropdownItem>
+      <ActionDropdownItem
+        onClick={restartFailedTasksHandler}
+        disabled={isMutating}
+        permission={{
+          resource: ResourceType.CONNECT,
+          action: Action.EDIT,
+          value: name,
+        }}
+      >
+        Restart Failed Tasks
+      </ActionDropdownItem>
       <DropdownItem onClick={handleDelete} danger>
         Remove Connector
       </DropdownItem>

kafka-ui-react-app/src/components/Connect/List/__tests__/List.spec.tsx

@@ -9,7 +9,11 @@ import { screen, waitFor } from '@testing-library/react';
 import userEvent from '@testing-library/user-event';
 import { render, WithRoute } from 'lib/testHelpers';
 import { clusterConnectConnectorPath, clusterConnectorsPath } from 'lib/paths';
-import { useConnectors, useDeleteConnector } from 'lib/hooks/api/kafkaConnect';
+import {
+  useConnectors,
+  useDeleteConnector,
+  useUpdateConnectorState,
+} from 'lib/hooks/api/kafkaConnect';
 
 const mockedUsedNavigate = jest.fn();
 const mockDelete = jest.fn();
@@ -22,6 +26,7 @@ jest.mock('react-router-dom', () => ({
 jest.mock('lib/hooks/api/kafkaConnect', () => ({
   useConnectors: jest.fn(),
   useDeleteConnector: jest.fn(),
+  useUpdateConnectorState: jest.fn(),
 }));
 
 const clusterName = 'local';
@@ -42,6 +47,10 @@ describe('Connectors List', () => {
       (useConnectors as jest.Mock).mockImplementation(() => ({
         data: connectors,
       }));
+      const restartConnector = jest.fn();
+      (useUpdateConnectorState as jest.Mock).mockImplementation(() => ({
+        mutateAsync: restartConnector,
+      }));
     });
 
     it('renders', async () => {

kafka-ui-react-app/src/components/ConsumerGroups/List.tsx

@@ -51,9 +51,9 @@ const List = () => {
         accessorKey: 'members',
       },
       {
+        id: ConsumerGroupOrdering.TOPIC_NUM,
         header: 'Num Of Topics',
         accessorKey: 'topics',
-        enableSorting: false,
       },
       {
         id: ConsumerGroupOrdering.MESSAGES_BEHIND,

kafka-ui-react-app/src/components/Topics/List/ActionsCell.tsx

@@ -4,11 +4,7 @@ import { CellContext } from '@tanstack/react-table';
 import ClusterContext from 'components/contexts/ClusterContext';
 import { ClusterNameRoute } from 'lib/paths';
 import useAppParams from 'lib/hooks/useAppParams';
-import {
-  Dropdown,
-  DropdownItem,
-  DropdownItemHint,
-} from 'components/common/Dropdown';
+import { Dropdown, DropdownItemHint } from 'components/common/Dropdown';
 import {
   useDeleteTopic,
   useClearTopicMessages,
@@ -55,7 +51,8 @@ const ActionsCell: React.FC<CellContext<Topic, unknown>> = ({ row }) => {
           with DELETE policy
         </DropdownItemHint>
       </ActionDropdownItem>
-      <DropdownItem
+      <ActionDropdownItem
+        disabled={!isTopicDeletionAllowed}
         onClick={recreateTopic.mutateAsync}
         confirm={
           <>
@@ -63,9 +60,14 @@ const ActionsCell: React.FC<CellContext<Topic, unknown>> = ({ row }) => {
           </>
         }
         danger
+        permission={{
+          resource: ResourceType.TOPIC,
+          action: [Action.VIEW, Action.CREATE, Action.DELETE],
+          value: name,
+        }}
       >
         Recreate Topic
-      </DropdownItem>
+      </ActionDropdownItem>
       <ActionDropdownItem
         disabled={!isTopicDeletionAllowed}
         onClick={() => deleteTopic.mutateAsync(name)}

kafka-ui-react-app/src/components/Topics/Topic/Messages/Filters/AddEditFilterContainer.tsx

@@ -27,7 +27,7 @@ export interface AddEditFilterContainerProps {
   inputDisplayNameDefaultValue?: string;
   inputCodeDefaultValue?: string;
   isAdd?: boolean;
-  submitCallback?: (values: AddMessageFilters) => Promise<void>;
+  submitCallback?: (values: AddMessageFilters) => void;
 }
 
 const AddEditFilterContainer: React.FC<AddEditFilterContainerProps> = ({

kafka-ui-react-app/src/components/Topics/Topic/Messages/Message.tsx

@@ -29,8 +29,10 @@ const Message: React.FC<Props> = ({
     timestampType,
     offset,
     key,
+    keySize,
     partition,
     content,
+    valueSize,
     headers,
     valueSerde,
     keySerde,
@@ -138,6 +140,8 @@ const Message: React.FC<Props> = ({
           headers={headers}
           timestamp={timestamp}
           timestampType={timestampType}
+          keySize={keySize}
+          contentSize={valueSize}
         />
       )}
     </>

kafka-ui-react-app/src/components/Topics/Topic/Messages/MessageContent/MessageContent.tsx

@@ -15,6 +15,8 @@ export interface MessageContentProps {
   headers?: { [key: string]: string | undefined };
   timestamp?: Date;
   timestampType?: TopicMessageTimestampTypeEnum;
+  keySize?: number;
+  contentSize?: number;
 }
 
 const MessageContent: React.FC<MessageContentProps> = ({
@@ -23,6 +25,8 @@ const MessageContent: React.FC<MessageContentProps> = ({
   headers,
   timestamp,
   timestampType,
+  keySize,
+  contentSize,
 }) => {
   const [activeTab, setActiveTab] = React.useState<Tab>('content');
   const [searchParams] = useSearchParams();
@@ -54,8 +58,7 @@ const MessageContent: React.FC<MessageContentProps> = ({
     e.preventDefault();
     setActiveTab('headers');
   };
-  const keySize = new TextEncoder().encode(messageKey).length;
-  const contentSize = new TextEncoder().encode(messageContent).length;
+
   const contentType =
     messageContent && messageContent.trim().startsWith('{')
       ? SchemaType.JSON

kafka-ui-react-app/src/components/Topics/Topic/Topic.tsx

@@ -59,7 +59,7 @@ const Topic: React.FC = () => {
 
   const deleteTopicHandler = async () => {
     await deleteTopic.mutateAsync(topicName);
-    navigate('../..');
+    navigate(clusterTopicsPath(clusterName));
   };
 
   React.useEffect(() => {

kafka-ui-react-app/src/components/Topics/Topic/__test__/Topic.spec.tsx

@@ -10,6 +10,7 @@ import {
   clusterTopicMessagesPath,
   clusterTopicPath,
   clusterTopicSettingsPath,
+  clusterTopicsPath,
   clusterTopicStatisticsPath,
   getNonExactPath,
 } from 'lib/paths';
@@ -179,7 +180,9 @@ describe('Details', () => {
         name: 'Confirm',
       });
       await userEvent.click(submitDeleteButton);
-      expect(mockNavigate).toHaveBeenCalledWith('../..');
+      expect(mockNavigate).toHaveBeenCalledWith(
+        clusterTopicsPath(mockClusterName)
+      );
     });
 
     it('shows a confirmation popup on deleting topic messages', async () => {

kafka-ui-react-app/src/components/common/Dropdown/Dropdown.styled.ts

@@ -70,7 +70,7 @@ export const DropdownButton = styled.button`
 `;
 
 export const DangerItem = styled.div`
-  color: ${({ theme: { dropdown } }) => dropdown.item.color.normal};
+  color: ${({ theme: { dropdown } }) => dropdown.item.color.danger};
 `;
 
 export const DropdownItemHint = styled.div`

kafka-ui-react-app/src/lib/hooks/api/kafkaConnect.ts

@@ -76,7 +76,8 @@ export function useUpdateConnectorState(props: UseConnectorProps) {
   return useMutation(
     (action: ConnectorAction) => api.updateConnectorState({ ...props, action }),
     {
-      onSuccess: () => client.invalidateQueries(connectorKey(props)),
+      onSuccess: () =>
+        client.invalidateQueries(['clusters', props.clusterName, 'connectors']),
     }
   );
 }

kafka-ui-react-app/src/lib/hooks/api/topics.ts

@@ -122,9 +122,6 @@ export function useCreateTopicMutation(clusterName: ClusterName) {
       }),
     {
       onSuccess: () => {
-        showSuccessAlert({
-          message: `Topic successfully created.`,
-        });
         client.invalidateQueries(topicKeys.all(clusterName));
       },
     }

pom.xml

@@ -26,7 +26,7 @@
         <assertj.version>3.19.0</assertj.version>
         <avro.version>1.11.1</avro.version>
         <byte-buddy.version>1.12.19</byte-buddy.version>
-        <confluent.version>7.3.0</confluent.version>
+        <confluent.version>7.3.3</confluent.version>
         <datasketches-java.version>3.1.0</datasketches-java.version>
         <groovy.version>3.0.13</groovy.version>
         <jackson.version>2.14.0</jackson.version>
@@ -40,10 +40,11 @@
         <kafka-ui-serde-api.version>1.0.0</kafka-ui-serde-api.version>
         <odd-oddrn-generator.version>0.1.15</odd-oddrn-generator.version>
         <odd-oddrn-client.version>0.1.23</odd-oddrn-client.version>
+        <org.json.version>20230227</org.json.version>
 
         <!-- Test dependency versions -->
         <junit.version>5.9.1</junit.version>
-        <mockito.version>5.1.1</mockito.version>
+        <mockito.version>5.3.0</mockito.version>
         <okhttp3.mockwebserver.version>4.10.0</okhttp3.mockwebserver.version>
         <testcontainers.version>1.17.5</testcontainers.version>
 
@@ -52,7 +53,7 @@
         <pnpm.version>v7.4.0</pnpm.version>
 
         <!-- Plugin versions -->
-        <fabric8-maven-plugin.version>0.42.0</fabric8-maven-plugin.version>
+        <fabric8-maven-plugin.version>0.42.1</fabric8-maven-plugin.version>
         <frontend-maven-plugin.version>1.12.1</frontend-maven-plugin.version>
         <maven-clean-plugin.version>3.2.0</maven-clean-plugin.version>
         <maven-compiler-plugin.version>3.10.1</maven-compiler-plugin.version>