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https://issues.apache.org/jira/browse/TRAFODION-2236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15534368#comment-15534368
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ASF GitHub Bot commented on TRAFODION-2236:
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Github user asfgit closed the pull request at:
https://github.com/apache/incubator-trafodion/pull/730
> TM crashesh following sqstart
> -----------------------------
>
> Key: TRAFODION-2236
> URL: https://issues.apache.org/jira/browse/TRAFODION-2236
> Project: Apache Trafodion
> Issue Type: Bug
> Components: dtm
> Affects Versions: 2.0-incubating
> Reporter: Sean Broeder
> Assignee: Sean Broeder
> Fix For: 2.1-incubating
>
>
> When Trafodion is stopped abruptly when a region server has current recovery
> requests posted in Zookeeper, the new TMs may be unable to start. This
> happens because the TM recovery thread reads the ZK entries and attempts to
> send the recovery resolution to the region server that posted the entry. It
> gets a connection error because that region server no longer exists.
> The partial solution is to remove the ZK entries as part of startup so the TM
> can startup without error.
> THis is safe to do because any region server needing recovery will repost to
> zookeeper and the TM will have no issues connecting to this RS.
> An additional fix will be made to the TM to handle exceptions in trying to
> communicate with region servers during recovery.
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