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Posted to issues@flink.apache.org by "Kostas Kloudas (JIRA)" <ji...@apache.org> on 2018/02/07 13:27:00 UTC
[jira] [Closed] (FLINK-8522) DefaultOperatorStateBackend writes
data in checkpoint that is never read.
[ https://issues.apache.org/jira/browse/FLINK-8522?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kostas Kloudas closed FLINK-8522.
---------------------------------
Resolution: Fixed
Merged with 44211e346f43c931b6eb7106314a1686e25585d9
> DefaultOperatorStateBackend writes data in checkpoint that is never read.
> -------------------------------------------------------------------------
>
> Key: FLINK-8522
> URL: https://issues.apache.org/jira/browse/FLINK-8522
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Affects Versions: 1.4.0
> Reporter: Kostas Kloudas
> Assignee: Kostas Kloudas
> Priority: Major
> Fix For: 1.4.1
>
>
> In the DefaultOperatorStateBackend at line 283 we write in the checkpoint an int declaring the number of the operator states that we include in the checkpoint.
> This number is never read when restoring and this can lead to confusion and problems with backwards compatibility and/or extension of the types of state we support (e.g. broadcast state).
> There are two easy solutions, either remove the line and do not write the size, or make sure that we also read this number when restoring and simply ignore it.
> I would go for the first one, i.e. remove the line. What do you think [~richtesn] and [~tzulitai] ?
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