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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-9025) Potential Thread safety issue in MetaScanner
Date Sun, 08 Dec 2013 05:11:37 GMT

     [ https://issues.apache.org/jira/browse/HBASE-9025?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lars Hofhansl resolved HBASE-9025.
----------------------------------

    Resolution: Cannot Reproduce

> Potential Thread safety issue in MetaScanner
> --------------------------------------------
>
>                 Key: HBASE-9025
>                 URL: https://issues.apache.org/jira/browse/HBASE-9025
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.94.9
>            Reporter: Lars Hofhansl
>
> I just saw this in a test run in 0.94:
> {code}
> Stacktrace
> java.lang.NullPointerException
> 	at java.util.TreeMap.getEntry(TreeMap.java:324)
> 	at java.util.TreeMap.get(TreeMap.java:255)
> 	at org.apache.hadoop.hbase.util.TestHBaseFsck.testSplitDaughtersNotInMeta(TestHBaseFsck.java:1346)
> ...
> {code}
> The TreeMap in question here is actually returned from {{HTable.getRegionLocations()}},
which in turns calls {{MetaScanner.allTableRegions(getConfiguration(), getTableName(), false);}}



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