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https://issues.apache.org/jira/browse/HBASE-5663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13243150#comment-13243150
]
Zhihong Yu commented on HBASE-5663:
-----------------------------------
We could check the Exception was caused by NoSuchMethodException.
Since the retry is in MapRunner ctor, the above may not be needed.
> MultithreadedTableMapper doesn't work.
> --------------------------------------
>
> Key: HBASE-5663
> URL: https://issues.apache.org/jira/browse/HBASE-5663
> Project: HBase
> Issue Type: Bug
> Components: mapreduce
> Affects Versions: 0.94.0
> Reporter: Takuya Ueshin
> Attachments: HBASE-5663.patch
>
>
> MapReduce job using MultithreadedTableMapper goes down throwing the following
> Exception:
> {noformat}
> java.io.IOException: java.lang.NoSuchMethodException:
> org.apache.hadoop.mapreduce.Mapper$Context.<init>(org.apache.hadoop.conf.Configuration,
> org.apache.hadoop.mapred.TaskAttemptID,
> org.apache.hadoop.hbase.mapreduce.MultithreadedTableMapper$SubMapRecordReader,
>
> org.apache.hadoop.hbase.mapreduce.MultithreadedTableMapper$SubMapRecordWriter,
> org.apache.hadoop.hbase.mapreduce.TableOutputCommitter,
> org.apache.hadoop.hbase.mapreduce.MultithreadedTableMapper$SubMapStatusReporter,
> org.apache.hadoop.hbase.mapreduce.TableSplit)
> at
> org.apache.hadoop.hbase.mapreduce.MultithreadedTableMapper$MapRunner.<init>(MultithreadedTableMapper.java:260)
> at
> org.apache.hadoop.hbase.mapreduce.MultithreadedTableMapper.run(MultithreadedTableMapper.java:133)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1083)
> at org.apache.hadoop.mapred.Child.main(Child.java:249)
> Caused by: java.lang.NoSuchMethodException:
> org.apache.hadoop.mapreduce.Mapper$Context.<init>(org.apache.hadoop.conf.Configuration,
> org.apache.hadoop.mapred.TaskAttemptID,
> org.apache.hadoop.hbase.mapreduce.MultithreadedTableMapper$SubMapRecordReader,
>
> org.apache.hadoop.hbase.mapreduce.MultithreadedTableMapper$SubMapRecordWriter,
> org.apache.hadoop.hbase.mapreduce.TableOutputCommitter,
> org.apache.hadoop.hbase.mapreduce.MultithreadedTableMapper$SubMapStatusReporter,
> org.apache.hadoop.hbase.mapreduce.TableSplit)
> at java.lang.Class.getConstructor0(Class.java:2706)
> at java.lang.Class.getConstructor(Class.java:1657)
> at
> org.apache.hadoop.hbase.mapreduce.MultithreadedTableMapper$MapRunner.<init>(MultithreadedTableMapper.java:241)
> ... 8 more
> {noformat}
> This occured when the tasks are creating MapRunner threads.
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