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@@ -770,12 +770,21 @@ func (n *network) watchMiss(nlSock *nl.NetlinkSocket) {
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}
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n.driver.peerAdd(n.id, "dummy", ip, IPmask, mac, vtep, l2Miss, l3Miss, false)
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} else {
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- // If the gc_thresh values are lower kernel might knock off the neighor entries.
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- // This case can happen only for local entries, from the documentation (http://man7.org/linux/man-pages/man7/arp.7.html):
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+ // All the local peers will trigger a miss notification but this one is expected and the local container will reply
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+ // autonomously to the ARP request
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+ // In case the gc_thresh3 values is low kernel might reject new entries during peerAdd. This will trigger the following
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+ // extra logs that will inform of the possible issue.
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+ // Entries created would not be deleted see documentation http://man7.org/linux/man-pages/man7/arp.7.html:
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// Entries which are marked as permanent are never deleted by the garbage-collector.
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- if time.Since(t) > 500*time.Millisecond {
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+ // The time limit here is to guarantee that the dbSearch is not
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+ // done too frequently causing a stall of the peerDB operations.
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+ if l3Miss && time.Since(t) > 500*time.Millisecond {
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t = time.Now()
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- logrus.Warnf("miss notification for peer:%+v l3Miss:%t l2Miss:%t, if the problem persist check the gc_thresholds", neigh, l3Miss, l2Miss)
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+ pKey, pEntry, err := n.driver.peerDbSearch(n.id, ip)
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+ if !pEntry.isLocal {
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+ logrus.Warnf("miss notification for peer:%+v l3Miss:%t l2Miss:%t, if the problem persist check the gc_thresh on the host pKey:%+v pEntry:%+v err:%v",
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+ neigh, l3Miss, l2Miss, *pKey, *pEntry, err)
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+ }
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}
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}
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}
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Flavio Crisciani