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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-969) Won't split under load
Date Thu, 30 Oct 2008 05:19:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12643745#action_12643745
] 

stack commented on HBASE-969:
-----------------------------

Regionserver eventually OOME'd, probably because store got so big.

{code}
2008-10-29 23:03:02,306 DEBUG org.apache.hadoop.hbase.regionserver.HStore: Completed compaction
of 1118057853/info store size is 48.3g; time since last major compaction: 5834 seconds
2008-10-29 23:03:02,420 WARN org.apache.hadoop.hbase.regionserver.HStore: Failed getting store
size for 1118057853/info
java.io.EOFException: End of file reached before reading fully.
        at org.apache.hadoop.fs.FSInputStream.readFully(FSInputStream.java:68)
        at org.apache.hadoop.fs.FSDataInputStream.readFully(FSDataInputStream.java:51)
        at org.apache.hadoop.hbase.io.BlockFSInputStream.blockSeekTo(BlockFSInputStream.java:163)
        at org.apache.hadoop.hbase.io.BlockFSInputStream.read(BlockFSInputStream.java:124)
        at java.io.DataInputStream.readInt(DataInputStream.java:387)
        at org.apache.hadoop.io.SequenceFile$Reader.readRecordLength(SequenceFile.java:1898)
        at org.apache.hadoop.io.SequenceFile$Reader.next(SequenceFile.java:1928)
        at org.apache.hadoop.io.SequenceFile$Reader.next(SequenceFile.java:1833)
        at org.apache.hadoop.io.MapFile$Reader.finalKey(MapFile.java:391)
        at org.apache.hadoop.hbase.regionserver.HStore.checkSplit(HStore.java:1886)
        at org.apache.hadoop.hbase.regionserver.HStore.compact(HStore.java:917)
        at org.apache.hadoop.hbase.regionserver.HRegion.compactStores(HRegion.java:902)
        at org.apache.hadoop.hbase.regionserver.HRegion.compactStores(HRegion.java:860)
{code}

> Won't split under load
> ----------------------
>
>                 Key: HBASE-969
>                 URL: https://issues.apache.org/jira/browse/HBASE-969
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>            Priority: Blocker
>             Fix For: 0.19.0
>
>
> Looks like a new bug where we won't split when under load.  Some recent refactoring seems
to have dropped our split provoker.

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