0.20.3: java.lang.IndexOutOfBoundsException in reduce task with
TableOutputFormat
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Key: HBASE-3078
URL: https://issues.apache.org/jira/browse/HBASE-3078
Project: HBase
Issue Type: Bug
Components: mapred
Affects Versions: 0.20.3
Environment: Centos 5.5, 4 nodes, jre 1.6u21 x86_64, hbase 0.20.3,
hadoop-0.20.2+228 (from cloudera)
Reporter: Stanislav Kogut
Priority: Minor
It happens very rare (was seen only once yet), but looks like it was caused
inside HBase TableOutputFormat class while running periodic mapreduce job on my
cluster.
Here is a task log for failed task:
2010-10-04 12:08:00,339 WARN org.apache.hadoop.mapred.TaskTracker: Error
running child
java.lang.IndexOutOfBoundsException: toIndex = 850
at java.util.SubList.<init>(Unknown Source)
at java.util.RandomAccessSubList.<init>(Unknown Source)
at java.util.AbstractList.subList(Unknown Source)
at org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:611)
at
org.apache.hadoop.hbase.mapreduce.TableOutputFormat$TableRecordWriter.close(TableOutputFormat.java:80)
at
org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:567)
at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:408)
at org.apache.hadoop.mapred.Child.main(Child.java:170)
2010-10-04 12:08:00,343 INFO org.apache.hadoop.mapred.TaskRunner: Runnning
cleanup for the task
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