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Posted to dev@storm.apache.org by "Jungtaek Lim (JIRA)" <ji...@apache.org> on 2015/04/17 07:13:58 UTC
[jira] [Updated] (STORM-790) Log "task id is null" instead of let
worker died (NPE in consumeBatchToCursor)
[ https://issues.apache.org/jira/browse/STORM-790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jungtaek Lim updated STORM-790:
-------------------------------
Affects Version/s: 0.11.0
0.9.4
0.10.0
> Log "task id is null" instead of let worker died (NPE in consumeBatchToCursor)
> ------------------------------------------------------------------------------
>
> Key: STORM-790
> URL: https://issues.apache.org/jira/browse/STORM-790
> Project: Apache Storm
> Issue Type: Bug
> Affects Versions: 0.9.2-incubating, 0.9.3, 0.10.0, 0.9.4, 0.11.0
> Reporter: Jungtaek Lim
> Assignee: Jungtaek Lim
>
> In STORM-770, some users have observed that worker suddenly died with NPE in consumeBatchToCursor().
> Looks like it can occur when "task" in "mk-transfer-fn" is null.
> It may not be an issue before 0.9.2-incubating, since worker just ignores that tuple.
> Please see https://issues.apache.org/jira/browse/STORM-770?focusedCommentId=14496199&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14496199.
> Before finding root cause of this issue, it would be better to let worker not killed by this issue but just log with WARN or ERROR level.
> It really makes sense cause before 0.9.2 Storm silently ignores tuple, and with Guaranteeing Message Processing, after timed-out tuple will be replayed. (It isn't applied to non-ack)
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