Weird NPEs compacting
---------------------
Key: HBASE-1114
URL: https://issues.apache.org/jira/browse/HBASE-1114
Project: Hadoop HBase
Issue Type: Bug
Reporter: stack
Over on apurtell cluster, hbase TRUNK on hadoop 0.18.0 branch, see below.
They are weird because first would seem to be an empty fileystem data member
and the second's line number is start of the method and even then, we check for
null everywhere first before doing stuff in here (because of Erik Holstad
experience in past).
{code}
2009-01-09 16:28:21,262 INFO org.apache.hadoop.hbase.regionserver.HRegion:
starting compaction on region
content,c84bbfc94b2143e41ba119d159be2958,1231518442461
2009-01-09 16:28:21,265 ERROR
org.apache.hadoop.hbase.regionserver.CompactSplitThread: Compaction failed for
region content,c84bbfc94b2143e41ba119d159be2958,1231518442461
java.lang.NullPointerException
at org.apache.hadoop.hbase.regionserver.HStore.compact(HStore.java:869)
at
org.apache.hadoop.hbase.regionserver.HRegion.compactStores(HRegion.java:709)
at
org.apache.hadoop.hbase.regionserver.HRegion.compactStores(HRegion.java:666)
at
org.apache.hadoop.hbase.regionserver.CompactSplitThread.run(CompactSplitThread.java:105)
2009-01-09 16:28:45,896 ERROR
org.apache.hadoop.hbase.regionserver.HRegionServer:
java.lang.NullPointerException
2009-01-09 16:28:45,896 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
handler 2 on 60020, call next(3999959915225939603, 30) from XX.XX.XX.33:36665:
error: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.lang.NullPointerException
at
org.apache.hadoop.hbase.regionserver.HRegionServer.checkOOME(HRegionServer.java:696)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.cleanup(HRegionServer.java:664)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.cleanup(HRegionServer.java:648)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java:1579)
at sun.reflect.GeneratedMethodAccessor13.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$Server.call(HBaseRPC.java:632)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:894)
2009-01-09 16:28:47,947 ERROR
org.apache.hadoop.hbase.regionserver.HRegionServer:
java.lang.NullPointerException
2009-01-09 16:28:47,948 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
handler 9 on 60020, call next(3999959915225939603, 30) from XX.XX.XX.33:36665:
error: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.lang.NullPointerException
at
org.apache.hadoop.hbase.regionserver.HRegionServer.checkOOME(HRegionServer.java:696)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.cleanup(HRegionServer.java:664)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.cleanup(HRegionServer.java:648)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java:1579)
at sun.reflect.GeneratedMethodAccessor13.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$Server.call(HBaseRPC.java:632)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:894)
{code}
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