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Posted to jira@kafka.apache.org by "Ashish Kumar (JIRA)" <ji...@apache.org> on 2017/06/22 21:59:00 UTC
[jira] [Created] (KAFKA-5504) Kafka controller is not getting elected

Ashish Kumar created KAFKA-5504:
-----------------------------------

             Summary: Kafka controller is not getting elected
                 Key: KAFKA-5504
                 URL: https://issues.apache.org/jira/browse/KAFKA-5504
             Project: Kafka
          Issue Type: Bug
          Components: controller
    Affects Versions: 0.9.0.1
            Reporter: Ashish Kumar


I am having a kafka cluster of 20 nodes and I was facing issue of under-replicated topic for last few days so I decided to restart the broker which was working as a controller but after restart I'm getting below logs in all the brokers (It seems controller is not finalized and getting elected continuously):

[2017-06-23 02:59:50,388] INFO Result of znode creation is: NODEEXISTS (kafka.utils.ZKCheckedEphemeral)
[2017-06-23 02:59:50,396] INFO New leader is 12 (kafka.server.ZookeeperLeaderElector$LeaderChangeListener)
[2017-06-23 02:59:50,410] INFO Rolled new log segment for 'dpe_feedback_rating_history-4' in 0 ms. (kafka.log.Log)
[2017-06-23 02:59:51,585] INFO Creating /controller (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
[2017-06-23 02:59:51,590] INFO Result of znode creation is: NODEEXISTS (kafka.utils.ZKCheckedEphemeral)
[2017-06-23 02:59:51,609] INFO New leader is 11 (kafka.server.ZookeeperLeaderElector$LeaderChangeListener)
[2017-06-23 02:59:52,792] INFO Creating /controller (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
[2017-06-23 02:59:52,799] INFO Result of znode creation is: NODEEXISTS (kafka.utils.ZKCheckedEphemeral)
[2017-06-23 02:59:52,808] INFO New leader is 12 (kafka.server.ZookeeperLeaderElector$LeaderChangeListener)
[2017-06-23 02:59:54,122] INFO New leader is 3 (kafka.server.ZookeeperLeaderElector$LeaderChangeListener)
[2017-06-23 02:59:55,504] INFO Creating /controller (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
[2017-06-23 02:59:55,512] INFO Result of znode creation is: NODEEXISTS (kafka.utils.ZKCheckedEphemeral)
[2017-06-23 02:59:55,520] INFO New leader is 11 (kafka.server.ZookeeperLeaderElector$LeaderChangeListener)
[2017-06-23 02:59:56,695] INFO Creating /controller (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
[2017-06-23 02:59:56,701] INFO Result of znode creation is: NODEEXISTS (kafka.utils.ZKCheckedEphemeral)
[2017-06-23 02:59:56,709] INFO New leader is 11 (kafka.server.ZookeeperLeaderElector$LeaderChangeListener)
[2017-06-23 02:59:57,949] INFO Creating /controller (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
[2017-06-23 02:59:57,955] INFO Result of znode creation is: NODEEXISTS (kafka.utils.ZKCheckedEphemeral)
[2017-06-23 02:59:57,965] INFO New leader is 12 (kafka.server.ZookeeperLeaderElector$LeaderChangeListener)
[2017-06-23 02:59:59,378] INFO Creating /controller (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
[2017-06-23 02:59:59,384] INFO Result of znode creation is: NODEEXISTS (kafka.utils.ZKCheckedEphemeral)
[2017-06-23 02:59:59,395] INFO New leader is 12 (kafka.server.ZookeeperLeaderElector$LeaderChangeListener)
.
Please help.



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