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fix #2792 Enhanced CPU load management and thread waiting logic for better system stability

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This commit is contained in:
Shinsuke Sugaya 2023-12-29 15:49:28 +09:00
parent 52187946f7
commit 501509d98e
2 changed files with 37 additions and 6 deletions
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36
src/main/java/org/codelibs/fess/helper/SystemHelper.java
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@ -30,14 +30,17 @@ import java.nio.file.Path;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import java.util.Set;
import java.util.TimeZone;
import java.util.UUID;
import java.util.concurrent.ExecutionException;
@ -123,6 +126,8 @@ public class SystemHelper {
protected Map<String, Supplier<String>> updateConfigListenerMap = new HashMap<>();
protected Set<String> waitingThreadNames = Collections.synchronizedSet(new HashSet<>());
@PostConstruct
public void init() {
if (logger.isDebugEnabled()) {
@ -589,15 +594,40 @@ public class SystemHelper {
}
public void calibrateCpuLoad() {
final int percent = ComponentUtil.getFessConfig().getAdaptiveLoadControlAsInteger();
final short percent = ComponentUtil.getFessConfig().getAdaptiveLoadControlAsInteger().shortValue();
if (percent <= 0) {
return;
}
while (getSystemCpuPercent() > percent) {
short current = getSystemCpuPercent();
if (current < percent) {
return;
}
final String threadName = Thread.currentThread().getName();
try {
waitingThreadNames.add(threadName);
while (current >= percent) {
if (logger.isInfoEnabled()) {
logger.info("Cpu Load {}% is greater than {}%. {} threads are waiting.", current, percent, waitingThreadNames.size());
}
if (logger.isDebugEnabled()) {
logger.debug("Waiting threads: {}", waitingThreadNames);
}
ThreadUtil.sleep(systemCpuCheckInterval);
current = getSystemCpuPercent();
}
} finally {
waitingThreadNames.remove(threadName);
}
}
public void waitForNoWaitingThreads() {
int count = waitingThreadNames.size();
while (count > 0) {
if (logger.isInfoEnabled()) {
logger.info("Cpu Load {}% is greater than {}%.", getSystemCpuPercent(), percent);
logger.info("{} threads are waiting.", count);
}
ThreadUtil.sleep(systemCpuCheckInterval);
count = waitingThreadNames.size();
}
}

7
src/main/java/org/codelibs/fess/indexer/IndexUpdater.java
View file

@ -197,6 +197,9 @@ public class IndexUpdater extends Thread {
final int sessionIdListSize = finishedSessionIdList.size();
intervalControlHelper.setCrawlerRunning(true);
docList.clear();
accessResultList.clear();
updateTime = System.currentTimeMillis() - updateTime;
final long interval = updateInterval - updateTime;
@ -206,9 +209,7 @@ public class IndexUpdater extends Thread {
}
systemHelper.calibrateCpuLoad();
docList.clear();
accessResultList.clear();
systemHelper.waitForNoWaitingThreads();
intervalControlHelper.delayByRules();