[jira] [Assigned] (KAFKA-821) specifying a non-existent partition to ./bin/kafka-reassign-partitions.sh breaks all reassignment ops

["Neha Narkhede (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-821?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neha Narkhede reassigned KAFKA-821:
-----------------------------------

    Assignee: Neha Narkhede
    
> specifying a non-existent partition to ./bin/kafka-reassign-partitions.sh breaks all reassignment ops
> -----------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-821
>                 URL: https://issues.apache.org/jira/browse/KAFKA-821
>             Project: Kafka
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 0.8
>            Reporter: Scott Clasen
>            Assignee: Neha Narkhede
>
> From my ML post...the workaround is to manually delete /admin/reassign_partitions from ZK, that node contained a json with an empty partitions array.
> Have 3 brokers running. Ids 25,26,27
> ./bin/kafka-create-topic.sh --replica 3 --topic first-cluster-topic
> --zookeeper <zk>:2181/kafka
> Seems fine, can send/receive, etc..
> Kill 27, start 28. Try to reassign the single partition topic with the
> following json.
> Contains an error. partition should be 0 not 1.
>  {"partitions":
>  [{"topic": "first-cluster-topic", "partition": 1, "replicas": [25,26,28] }]
> }
> ./bin/kafka-reassign-partitions.sh  --zookeeper ... -path-to-json-file
> reassign.json
> 2013-03-21 12:14:46,170] INFO zookeeper state changed (SyncConnected)
> (org.I0Itec.zkclient.ZkClient)
> [2013-03-21 12:14:46,310] ERROR Skipping reassignment of partition
> [first-cluster-topic,1] since it doesn't exist
> (kafka.admin.ReassignPartitionsCommand)
> Successfully started reassignment of partitions Map([first-cluster-topic,1]
> -> List(25, 26, 28))
> [2013-03-21 12:14:46,665] INFO Terminate ZkClient event thread.
> (org.I0Itec.zkclient.ZkEventThread)
> [2013-03-21 12:14:46,780] INFO Session: 0x13d8a63a3760007 closed
> (org.apache.zookeeper.ZooKeeper)
> [2013-03-21 12:14:46,780] INFO EventThread shut down
> (org.apache.zookeeper.ClientCnxn)
> Ok, fix the JSON
>  {"partitions":
>  [{"topic": "first-cluster-topic", "partition": 0, "replicas": [25,26,28] }]
> }
> ./bin/kafka-reassign-partitions.sh  --zookeeper ... -path-to-json-file
> reassign.json
> [2013-03-21 12:17:34,367] INFO zookeeper state changed (SyncConnected)
> (org.I0Itec.zkclient.ZkClient)
> Partitions reassignment failed due to Partition reassignment currently in
> progress for Map(). Aborting operation
> kafka.common.AdminCommandFailedException: Partition reassignment currently
> in progress for Map(). Aborting operation
> at
> kafka.admin.ReassignPartitionsCommand.reassignPartitions(ReassignPartitionsCommand.scala:91)
> at
> kafka.admin.ReassignPartitionsCommand$.main(ReassignPartitionsCommand.scala:65)
> at
> kafka.admin.ReassignPartitionsCommand.main(ReassignPartitionsCommand.scala)
>  ./bin/kafka-check-reassignment-status.sh --zookeeper ...
> --path-to-json-file reassign.json
> [2013-03-21 12:20:40,607] INFO zookeeper state changed (SyncConnected)
> (org.I0Itec.zkclient.ZkClient)
> Exception in thread "main" java.lang.ClassCastException:
> scala.collection.immutable.Map$Map1 cannot be cast to
> [Lscala.collection.Map;
> at
> kafka.admin.CheckReassignmentStatus$.main(CheckReassignmentStatus.scala:44)
> at kafka.admin.CheckReassignmentStatus.main(CheckReassignmentStatus.scala)

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