[
https://issues.apache.org/jira/browse/FLINK-2004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14561037#comment-14561037
]
ASF GitHub Bot commented on FLINK-2004:
---------------------------------------
Github user rmetzger commented on the pull request:
https://github.com/apache/flink/pull/674#issuecomment-105926083
Sorry for not reacting. I was busy with other stuff but I'll now address
your comments.
> Memory leak in presence of failed checkpoints in KafkaSource
> ------------------------------------------------------------
>
> Key: FLINK-2004
> URL: https://issues.apache.org/jira/browse/FLINK-2004
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Affects Versions: 0.9
> Reporter: Stephan Ewen
> Assignee: Robert Metzger
> Priority: Critical
> Fix For: 0.9
>
>
> Checkpoints that fail never send a commit message to the tasks.
> Maintaining a map of all pending checkpoints introduces a memory leak, as
> entries for failed checkpoints will never be removed.
> Approaches to fix this:
> - The source cleans up entries from older checkpoints once a checkpoint is
> committed (simple implementation in a linked hash map)
> - The commit message could include the optional state handle (source needs
> not maintain the map)
> - The checkpoint coordinator could send messages for failed checkpoints?
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
