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Kafka >> mail # dev >> [jira] [Closed] (KAFKA-840) Controller tries to perform preferred replica election on failover before state machines have started up


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[jira] [Closed] (KAFKA-840) Controller tries to perform preferred replica election on failover before state machines have started up

     [ https://issues.apache.org/jira/browse/KAFKA-840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neha Narkhede closed KAFKA-840.
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> Controller tries to perform preferred replica election on failover before state machines have started up
> --------------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-840
>                 URL: https://issues.apache.org/jira/browse/KAFKA-840
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.8
>            Reporter: Swapnil Ghike
>            Assignee: Swapnil Ghike
>            Priority: Blocker
>              Labels: bugs
>             Fix For: 0.8
>
>         Attachments: kafka-840.patch, kafka-840-v2.patch
>
>
> If the admin/preferred_replica_election path is non-empty when a new controller starts, the controller attempts to perform preferred replica election before the partition and replica state machine have been initialized. In this case, the controller will try to make invalid state transitions.

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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB