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https://issues.apache.org/jira/browse/HBASE-2398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12852138#action_12852138
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Jean-Daniel Cryans commented on HBASE-2398:
-------------------------------------------
Here's a stack trace of the problem:
{code}
2010-03-31 15:10:13,761 ERROR
org.apache.hadoop.hbase.regionserver.HRegionServer:
java.lang.NullPointerException
at
org.apache.hadoop.io.SequenceFile$Writer.getLength(SequenceFile.java:1048)
at org.apache.hadoop.hbase.regionserver.HLog.append(HLog.java:750)
at org.apache.hadoop.hbase.regionserver.HRegion.put(HRegion.java:1581)
at org.apache.hadoop.hbase.regionserver.HRegion.put(HRegion.java:1356)
at org.apache.hadoop.hbase.regionserver.HRegion.put(HRegion.java:1324)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.put(HRegionServer.java:1789)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.multiPut(HRegionServer.java:2529)
at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:577)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
2010-03-31 15:10:13,763 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
handler 22 on 60020,
call multiPut(org.apache.hadoop.hbase.client.multi...@5d363c50) from
10.10.1.177:59822: error: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.lang.NullPointerException
at
org.apache.hadoop.hbase.regionserver.HRegionServer.convertThrowableToIOE(HRegionServer.java:881)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.convertThrowableToIOE(HRegionServer.java:871)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.put(HRegionServer.java:1798)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.multiPut(HRegionServer.java:2529)
at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:577)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
Caused by: java.lang.NullPointerException
at
org.apache.hadoop.io.SequenceFile$Writer.getLength(SequenceFile.java:1048)
at org.apache.hadoop.hbase.regionserver.HLog.append(HLog.java:750)
at org.apache.hadoop.hbase.regionserver.HRegion.put(HRegion.java:1581)
at org.apache.hadoop.hbase.regionserver.HRegion.put(HRegion.java:1356)
at org.apache.hadoop.hbase.regionserver.HRegion.put(HRegion.java:1324)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.put(HRegionServer.java:1789)
... 6 more
{code}
> NPE in HLog.append when calling writer.getLength
> ------------------------------------------------
>
> Key: HBASE-2398
> URL: https://issues.apache.org/jira/browse/HBASE-2398
> Project: Hadoop HBase
> Issue Type: Bug
> Reporter: Jean-Daniel Cryans
> Assignee: Nicolas Spiegelberg
> Fix For: 0.20.4, 0.21.0
>
>
> Doing some test uploads on a fresh single node setup, I'm seeing non-fatal
> NPEs in the region server log coming from HLog.append when calling
> writer.getLength. I'll post a log in a follow-up comment.
> Assigning to Nicolas so that he takes a look.
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