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From Márton Balassi (JIRA) <j...@apache.org>
Subject [jira] [Commented] (FLINK-2221) Checkpoints to "file://" are not cleaned up
Date Mon, 15 Jun 2015 15:01:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14586148#comment-14586148
] 

Márton Balassi commented on FLINK-2221:
---------------------------------------

After a bit more careful consideration and checking other parts of the code I feel that it
does not make sense to implement this. A clash in twenty byte long random string has to be
enough.

> Checkpoints to "file://" are not cleaned up
> -------------------------------------------
>
>                 Key: FLINK-2221
>                 URL: https://issues.apache.org/jira/browse/FLINK-2221
>             Project: Flink
>          Issue Type: Bug
>          Components: Streaming
>            Reporter: Aljoscha Krettek
>
> If you think about it, this could never work. The state handle cleanup logic happens
purely on the JobManager. So what happens is that the TaskManagers create state in some directory,
let's say /tmp/checkpoints, on the TaskManager. For cleanup, the JobManager gets the state
handle and calls discard (on the JobManager), this tries to cleanup the state in /tmp/checkpoints,
but of course, there is nothing there since we are still on the JobManager.



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