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https://issues.apache.org/jira/browse/APEXMALHAR-1990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15135029#comment-15135029
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ASF GitHub Bot commented on APEXMALHAR-1990:
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GitHub user PramodSSImmaneni opened a pull request:
https://github.com/apache/incubator-apex-malhar/pull/184
APEXMALHAR-1990
Fix for concurrent modification exceptions when deleting old idempotent
state. @amberarrow @chandnisingh please review
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/PramodSSImmaneni/incubator-apex-malhar
APEXMALHAR-1990
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-apex-malhar/pull/184.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 #184
----
commit cd90202ee9de8c8e556bcfe729579dcbf6a01868
Author: Pramod Immaneni <[email protected]>
Date: 2016-02-05T21:19:17Z
Using iterator to remove entries instead of directly accessing data
structure to avoid concurrent modification exceptions
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> Occasional concurrent modification exceptions from IdempotentStorageManager
> ---------------------------------------------------------------------------
>
> Key: APEXMALHAR-1990
> URL: https://issues.apache.org/jira/browse/APEXMALHAR-1990
> Project: Apache Apex Malhar
> Issue Type: Bug
> Components: utilities
> Reporter: Munagala V. Ramanath
> Assignee: Pramod Immaneni
>
> We see ConcurrentModificationException from IdempotentStorageManager in
> FSIdempotentStorageManager.deleteUpTo.
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