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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-5628) CheckpointStatsTracker implements Serializable but isn't
Date Wed, 25 Jan 2017 15:41:27 GMT

    [ https://issues.apache.org/jira/browse/FLINK-5628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15837928#comment-15837928
] 

ASF GitHub Bot commented on FLINK-5628:
---------------------------------------

Github user zentol commented on the issue:

    https://github.com/apache/flink/pull/3215
  
    add `SubtaskStateStats` to the list.


> CheckpointStatsTracker implements Serializable but isn't
> --------------------------------------------------------
>
>                 Key: FLINK-5628
>                 URL: https://issues.apache.org/jira/browse/FLINK-5628
>             Project: Flink
>          Issue Type: Bug
>          Components: Local Runtime
>    Affects Versions: 1.2.0, 1.3.0
>            Reporter: Chesnay Schepler
>            Assignee: Ufuk Celebi
>            Priority: Blocker
>             Fix For: 1.3.0
>
>
> The CheckpointStatsTracker implements the Serializable interface, even though it no longer
is serializable as it contains a List<ExecutionJobVertex>.
> This was introduced in 579bc96446d598a2cfe8237b4ebd62d8c9df3483 which reworked the checkpoint
stats tracking,
> This does not affect 1.2 or 1.3 in any way (since these objects aren't serialized there),
but it blocks the implementation of the HistoryServer.
> The AccessExecution*/ArchivedExecution* classes, which are supposed to be a serializable
form of the ExecutionGraph, are thus broken as they also make use of the CheckpointStatsTracker.
> (Note: * = Graph/ExecutionJobVertex/ExecutionVertex/Execution) .
> This wasn't catched in tests since no ExecutionJobVertices were given to the CheckpointStatsTracker
in ArchivedExecutionGraphTest#setExecutionGraph.



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