Hi All,
I’m seeing the following issues after running a Kafka broker cluster for 2 months: [2014-07-07 17:54:19,798] ERROR Conditional update of path /brokers/topics/mini__065____active_80__32__mini____activeitembrn_chd_qn/partitions/0/state with data {"controller_epoch":9,"leader":2129087,"version":1,"leader_epoch":3,"isr":[2129087]} and expected version 18 failed d ue to org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /brokers/topics/mini__065____active_80__32__mini____activeitembrn_chd_qn/partitions/0/state (kafka.utils.ZkUtils$) [2014-07-07 17:54:19,809] ERROR Conditional update of path /brokers/topics/mini__076____active_80__32__mini____activeitembrn_chd_qn/partitions/0/state with data {"controller_epoch":9,"leader":2129087,"version":1,"leader_epoch":4,"isr":[2129087]} and expected version 37 failed d ue to org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /brokers/topics/mini__076____active_80__32__mini____activeitembrn_chd_qn/partitions/0/state (kafka.utils.ZkUtils$) [2014-07-07 17:54:19,817] ERROR Conditional update of path /brokers/topics/mini__042____active_80__32__mini____activeitem_chd_qn/partitions/0/state with data {"controller_epoch":9,"leader":2129087,"version":1,"leader_epoch":3,"isr":[2129087]} and expected version 24 failed due to org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /brokers/topics/mini__042____active_80__32__mini____activeitem_chd_qn/partitions/0/state (kafka.utils.ZkUtils$) [2014-07-07 17:54:19,826] ERROR Conditional update of path /brokers/topics/mini__034____active_80__32__mini____activeitembrn_chd_qn/partitions/0/state with data {"controller_epoch":9,"leader":2129087,"version":1,"leader_epoch":2,"isr":[2129087]} and expected version 143 failed due to org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /brokers/topics/mini__034____active_80__32__mini____activeitembrn_chd_qn/partitions/0/state (kafka.utils.ZkUtils$) [2014-07-07 17:54:19,833] ERROR Conditional update of path /brokers/topics/bom__066____active_80__32__mini____activeitembrn_chd_qn/partitions/0/state with data {"controller_epoch":9,"leader":2129087,"version":1,"leader_epoch":4,"isr":[2129087]} and expected version 8 failed due to org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /brokers/topics/bom__066____active_80__32__mini____activeitembrn_chd_qn/partitions/0/state (kafka.utils.ZkUtils$) [2014-07-07 17:54:19,841] ERROR Conditional update of path /brokers/topics/mini__009____active_80__32__mini/partitions/0/state with data {"controller_epoch":9,"leader":2129087,"version":1,"leader_epoch":2,"isr":[2129087]} and expected version 152 failed due to org.apache.zookee per.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /brokers/topics/mini__009____active_80__32__mini/partitions/0/state (kafka.utils.ZkUtils$) This problem is fixed after we restart the broker. Does anyone know why this problem would occur? Paul Lung