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From "Christopher Tubbs (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-2057) found two last locations for the same extent
Date Sun, 26 Jan 2014 22:23:38 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-2057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13882449#comment-13882449
] 

Christopher Tubbs commented on ACCUMULO-2057:
---------------------------------------------

It was [suggested|http://apache-accumulo.1065345.n5.nabble.com/data-loss-around-splits-when-tserver-goes-down-td7275.html]
that this bug might have affected 1.5.0 also.

[~ecn], do you know if that's the case? I see commits against other 1.5.x branches, but the
fixVersion only says 1.6.0.

> found two last locations for the same extent
> --------------------------------------------
>
>                 Key: ACCUMULO-2057
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2057
>             Project: Accumulo
>          Issue Type: Bug
>          Components: master, tserver
>            Reporter: Eric Newton
>            Priority: Critical
>             Fix For: 1.6.0
>
>
> Randomwalk testing, and saw this in the master logs:
> {noformat}
> 2013-12-18 19:16:58,335 [state.MetaDataTableScanner] ERROR: java.lang.RuntimeException:
org.apache.accumulo.server.master.state.TabletLocationState$BadLocationState
> Exception: found two last locations for the same extent a<: ip-10-1-2-26:9997[1430679035c00c6]
and ip-10-1-2-14:9997[343067903a7005b]
> java.lang.RuntimeException: org.apache.accumulo.server.master.state.TabletLocationState$BadLocationStateException:
found two last locations for the same extent a<: 
> ip-10-1-2-26:9997[1430679035c00c6] and ip-10-1-2-14:9997[343067903a7005b]
>         at org.apache.accumulo.server.master.state.MetaDataTableScanner.fetch(MetaDataTableScanner.java:192)
>         at org.apache.accumulo.server.master.state.MetaDataTableScanner.next(MetaDataTableScanner.java:127)
>         at org.apache.accumulo.server.master.state.MetaDataTableScanner.next(MetaDataTableScanner.java:1)
>         at org.apache.accumulo.master.TabletGroupWatcher.run(TabletGroupWatcher.java:143)
> Caused by: org.apache.accumulo.server.master.state.TabletLocationState$BadLocationStateException:
found two last locations for the same extent a<: ip-10-1-2-26:9997[1430679035c00c6] and
ip-10-1-2-14:9997[343067903a7005b]
>         at org.apache.accumulo.server.master.state.MetaDataTableScanner.createTabletLocationState(MetaDataTableScanner.java:169)
>         at org.apache.accumulo.server.master.state.MetaDataTableScanner.fetch(MetaDataTableScanner.java:188)
>         ... 3 more
> 2013-12-18 19:16:58,359 [master.Master] ERROR: Error processing table state for store
Normal Tablets
> java.lang.RuntimeException: scanner closed
>         at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.hasNext(TabletServerBatchReaderIterator.java:212)
>         at org.apache.accumulo.server.master.state.MetaDataTableScanner.hasNext(MetaDataTableScanner.java:117)
>         at org.apache.accumulo.master.TabletGroupWatcher.run(TabletGroupWatcher.java:143)
> {noformat}



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