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https://issues.apache.org/jira/browse/FLINK-5628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15837921#comment-15837921
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ASF GitHub Bot commented on FLINK-5628:
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Github user zentol commented on the issue:
https://github.com/apache/flink/pull/3215
as well as the and the `AbstractCheckpointStats` class.
> 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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