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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2020/02/12 05:56:05 UTC
[GitHub] [pulsar] snowcrumble commented on issue #308: Problems when ZK
Leader shuts down
snowcrumble commented on issue #308: Problems when ZK Leader shuts down
URL: https://github.com/apache/pulsar/issues/308#issuecomment-585043270
> The question here is why should the leader election take so much time. Can you share the hardware and ZK config?
My zk elect time is about 10 seconds, is that reasonable?
zk-0 is new follower
zk-1 is old leader which was on the crashed node
zk2 is new leader
below is the logs:
zk-0.log
```
04:51:47.726 [QuorumPeer[myid=1]/0.0.0.0:2181] INFO org.apache.zookeeper.server.quorum.QuorumPeer - FOLLOWING
04:51:47.727 [QuorumPeer[myid=1]/0.0.0.0:2181] INFO org.apache.zookeeper.server.ZooKeeperServer - Created server with tickTime 2000 minSessionTimeout 4000 maxSessionTimeout 40000 datadir data/zookeeper/version-2 snapdir data/zookeeper/version-2
04:51:47.727 [QuorumPeer[myid=1]/0.0.0.0:2181] INFO org.apache.zookeeper.server.quorum.Learner - FOLLOWING - LEADER ELECTION TOOK - 6405
04:51:47.728 [QuorumPeer[myid=1]/0.0.0.0:2181] INFO org.apache.zookeeper.server.quorum.QuorumPeer - Resolved hostname: zk-2.zookeeper.pulsar.svc.cluster.local to address: zk-2.zookeeper.pulsar.svc.cluster.local/10.30.2.2
04:51:47.740 [QuorumPeer[myid=1]/0.0.0.0:2181] INFO org.apache.zookeeper.server.quorum.Learner - Getting a diff from the leader 0x100024c1c
```
zk-2.log
```
04:51:47.727 [QuorumPeer[myid=3]/0.0.0.0:2181] INFO org.apache.zookeeper.server.quorum.QuorumPeer - LEADING
04:51:47.727 [QuorumPeer[myid=3]/0.0.0.0:2181] INFO org.apache.zookeeper.server.ZooKeeperServer - Created server with tickTime 2000 minSessionTimeout 4000 maxSessionTimeout 40000 datadir data/zookeeper/version-2 snapdir data/zookeeper/version-2
04:51:47.727 [QuorumPeer[myid=3]/0.0.0.0:2181] INFO org.apache.zookeeper.server.quorum.Leader - LEADING - LEADER ELECTION TOOK - 10421
04:51:47.734 [LearnerHandler-/10.30.2.141:43982] INFO org.apache.zookeeper.server.quorum.LearnerHandler - Follower sid: 1 : info : org.apache.zookeeper.server.quorum.QuorumPeer$QuorumServer@6fe50a68
```
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