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From "ryan rawson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1686) major compaction can create empty store files, causing AIOOB when trying to read
Date Thu, 23 Jul 2009 17:45:14 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12734659#action_12734659
] 

ryan rawson commented on HBASE-1686:
------------------------------------

He has the client stack trace, you need to visit the server to get the one I
posted. Its probably the same cause.

On Jul 23, 2009 10:35 AM, "stack (JIRA)" <jira@apache.org> wrote:


   [
https://issues.apache.org/jira/browse/HBASE-1686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12734655#action_12734655]

stack commented on HBASE-1686:
------------------------------

Manish at rapleaf ran into this issue too only in his case the stacktrace
was real ugly:

{code}
2009-07-21 00:00:29,996 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
handler 1 on 60020, call get([B@346e6b9c, row=^\^U^D^U^N^@^\^U^D^X^
Parrana88@aol.com^@^@, maxVersions=1, timeRange=[0,9223372036854775807),
families={(family=piston, columns=ALL}) from 10.100.48.4:35231: error:
java.io.IOException: java.lang.ArrayIndexOutOfBoundsException
java.io.IOException: java.lang.ArrayIndexOutOfBoundsException
   at
org.apache.hadoop.hbase.regionserver.HRegionServer.convertThrowableToIOE(HRegionServer.java:832)
   at
org.apache.hadoop.hbase.regionserver.HRegionServer.convertThrowableToIOE(HRegionServer.java:822)
   at
org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:1755)
   at sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source)
   at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:650)
   at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:913)

Caused by: java.lang.ArrayIndexOutOfBoundsException
{code}

... and nothing else.

to read > --------------...


> major compaction can create empty store files, causing AIOOB when trying to read
> --------------------------------------------------------------------------------
>
>                 Key: HBASE-1686
>                 URL: https://issues.apache.org/jira/browse/HBASE-1686
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.0
>            Reporter: ryan rawson
>            Priority: Blocker
>             Fix For: 0.20.0
>
>
> here is the backtrace:
> Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
>         at org.apache.hadoop.hbase.io.hfile.HFile$Reader.getFirstKey(HFile.java:991)
>         at org.apache.hadoop.hbase.regionserver.StoreFileGetScan.getStoreFile(StoreFileGetScan.java:84)
>         at org.apache.hadoop.hbase.regionserver.StoreFileGetScan.get(StoreFileGetScan.java:65)
>         at org.apache.hadoop.hbase.regionserver.Store.get(Store.java:1548)
>         at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:2263)
>         at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:2252)
>         at org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:1739)
> This can happen if your table only has deletes, and everything evaporates during a major
compaction.

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