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https://issues.apache.org/jira/browse/FLINK-3513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15167350#comment-15167350
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ASF GitHub Bot commented on FLINK-3513:
---------------------------------------
GitHub user uce opened a pull request:
https://github.com/apache/flink/pull/1712
[FLINK-3513] [FLINK-3512] Fix savepoint issues
@aljoscha spotted the following two issues (so far) while working with
savepoints and the rocks DB state backend.
- FLINK-3513: The operator name is used in the deterministic hash
assignment, which is actually not necessary and leads to problems with the
WindowOperator (changing name).
- FLINK-3512: The savepoint backend was trying to be too clever and fell
back to jobmanager when it found "wrong" config combinations.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/uce/flink hash_gen
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1712.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1712
----
commit dab3c654fafecf8caee6453b7da8965174646771
Author: Ufuk Celebi <[email protected]>
Date: 2016-02-25T15:55:04Z
[FLINK-3513] [runtime] Fix interplay of automatic Operator UID and Changing
name of WindowOperator
commit 3c3a81acee8de1128a3eee7f59ca6f8803acbd5c
Author: Ufuk Celebi <[email protected]>
Date: 2016-02-25T15:55:38Z
[FLINK-3512] [runtime] Savepoint backend should not revert to 'jobmanager'
----
> Fix interplay of automatic Operator UID and Changing name of WindowOperator
> ---------------------------------------------------------------------------
>
> Key: FLINK-3513
> URL: https://issues.apache.org/jira/browse/FLINK-3513
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Affects Versions: 1.0.0
> Reporter: Aljoscha Krettek
> Assignee: Ufuk Celebi
> Priority: Blocker
>
> WindowOperator can have a changing name because it has the TypeSerializer
> .toString() output in it's name. For some type serializers that don't
> implement toString() this means that the name changes.
> This means that savepoint restore does not work for the automatically
> generated UID.
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