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Andrey commented on KAFKA-5504: ------------------------------- Looks like configuration issue on our side. Checked *controller.log*: {code} [2017-11-14 09:50:37,093] ERROR [Controller 1]: Error while electing or becoming controller on broker 1 (kafka.controller.KafkaController) kafka.admin.AdminOperationException: org.I0Itec.zkclient.exception.ZkException: org.apache.zookeeper.KeeperException$NoAuthException: KeeperErrorCode = NoAuth for /admin/reassign_partitions at kafka.utils.ZkUtils.updatePartitionReassignmentData(ZkUtils.scala:803) at kafka.controller.KafkaController.removePartitionFromReassignedPartitions(KafkaController.scala:933) at kafka.controller.KafkaController$$anonfun$initializePartitionReassignment$1.apply(KafkaController.scala:715) {code} > Kafka controller is not getting elected > --------------------------------------- > > Key: KAFKA-5504 > URL: https://issues.apache.org/jira/browse/KAFKA-5504 > Project: Kafka > Issue Type: Bug > Components: controller > Affects Versions: 0.9.0.1 > Reporter: Ashish Kumar > > I am having a kafka cluster of 20 nodes and I was facing the issue of > under-replicated topics issue for last few days so decided to restart the > broker which was working as a controller but after restart getting below logs > in all the brokers (It seems controller is not finalized and leader election > is happening continuously): > [2017-06-23 02:59:50,388] INFO Result of znode creation is: NODEEXISTS > (kafka.utils.ZKCheckedEphemeral) > [2017-06-23 02:59:50,396] INFO New leader is 12 > (kafka.server.ZookeeperLeaderElector$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) > . > . > . > Tried deleting controller znode (/controller) but no luck. Please let me know > if any fix is possible here. -- This message was sent by Atlassian JIRA (v6.4.14#64029)