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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2018/07/25 20:45:00 UTC

[jira] [Commented] (SPARK-1137) ZK Persistence Engine crashes if stored data has wrong serialVersionUID

    [ https://issues.apache.org/jira/browse/SPARK-1137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16556251#comment-16556251 ] 

Apache Spark commented on SPARK-1137:
-------------------------------------

User 'aarondav' has created a pull request for this issue:
https://github.com/apache/spark/pull/4

> ZK Persistence Engine crashes if stored data has wrong serialVersionUID
> -----------------------------------------------------------------------
>
>                 Key: SPARK-1137
>                 URL: https://issues.apache.org/jira/browse/SPARK-1137
>             Project: Spark
>          Issue Type: Bug
>          Components: Deploy
>    Affects Versions: 0.9.0
>            Reporter: Aaron Davidson
>            Assignee: Aaron Davidson
>            Priority: Major
>             Fix For: 1.0.0
>
>
> The ZooKeeperPersistenceEngine contains information about concurrently existing Masters and Workers. This information, as the name suggests, is persistent in the event of a Master failure/restart. If the Spark version is upgraded, the Master will crash with a Java serialization exception when trying to re-read the persisted data.
> Instead of crashing (indefinitely), the Master should probably just ignore the prior data.



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