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https://issues.apache.org/jira/browse/ACCUMULO-2354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13898632#comment-13898632
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Mike Drob commented on ACCUMULO-2354:
-------------------------------------
Looking at the code makes me think that the message has nothing to do with the
tablet server's demise. I believe the problem is that
{{org.apache.accumulo.server.master.state.MetaDataStateStore.iterator()}}
provides no way to close the Scanner that it creates because the return type is
just {{Iterator<TabletLocationState>}}. We _could_ change that to something
like a [CloseableIterator|http://stackoverflow.com/a/17539843/370585] but that
seems like it might be overkill.
Anybody else have thoughts on this?
> Master does not close TabletServerBatchReader
> ---------------------------------------------
>
> Key: ACCUMULO-2354
> URL: https://issues.apache.org/jira/browse/ACCUMULO-2354
> Project: Accumulo
> Issue Type: Bug
> Components: master
> Environment: cdh4.5.0, accumulo f9a196f
> Reporter: Mike Drob
> Fix For: 1.6.0
>
>
> Saw the following in the Master logs:
> {noformat}
> 2014-02-11 16:55:10,820 [impl.TabletServerBatchReader] WARN :
> TabletServerBatchReader not shutdown; did you forget to call close()?
> java.lang.Throwable
> at
> org.apache.accumulo.core.client.impl.TabletServerBatchReader.<init>(TabletServerBatchReader.java:69)
> at
> org.apache.accumulo.core.client.impl.ConnectorImpl.createBatchScanner(ConnectorImpl.java:98)
> at
> org.apache.accumulo.server.master.state.MetaDataTableScanner.<init>(MetaDataTableScanner.java:63)
> at
> org.apache.accumulo.server.master.state.MetaDataTableScanner.<init>(MetaDataTableScanner.java:56)
> at
> org.apache.accumulo.server.master.state.MetaDataStateStore.iterator(MetaDataStateStore.java:70)
> at
> org.apache.accumulo.master.TabletGroupWatcher.run(TabletGroupWatcher.java:148)
> {noformat}
> This happened shortly after a tablet server had died and it's tablets were in
> the process of being recovered elsewhere.
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