[HBASE-5663] MultithreadedTableMapper doesn't work.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.94.0
• Fix Version/s: 0.94.0, 0.95.0
• Component/s: mapreduce
• Hadoop Flags: Reviewed
• Assignee: Takuya Ueshin
• Reporter: Takuya Ueshin
• Created: 28/Mar/12 13:07
• Updated: 26/Feb/13 08:12
• Resolved: 02/Apr/12 22:33

Description

MapReduce job using MultithreadedTableMapper goes down throwing the following Exception:

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

This occured when the tasks are creating MapRunner threads.

Issue Links

• is related to: HBASE-5636 TestTableMapReduce doesn't work properly.