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https://issues.apache.org/jira/browse/HBASE-5636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13243180#comment-13243180
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Zhihong Yu commented on HBASE-5636:
-----------------------------------
Without patch from HBASE-5663, I saw the following in test output:
{code}
2012-03-31 07:55:46,743 DEBUG [main] mapreduce.TableInputFormatBase(194):
getSplits: split -> 24 -> 192.168.0.17:yyy,
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)
{code}
> TestTableMapReduce doesn't work properly.
> -----------------------------------------
>
> Key: HBASE-5636
> URL: https://issues.apache.org/jira/browse/HBASE-5636
> Project: HBase
> Issue Type: Bug
> Components: test
> Affects Versions: 0.92.1, 0.94.0
> Reporter: Takuya Ueshin
> Attachments: HBASE-5636-v2.patch, HBASE-5636.patch
>
>
> No map function is called because there are no test data put before test
> starts.
> The following three tests are in the same situation:
> - org.apache.hadoop.hbase.mapred.TestTableMapReduce
> - org.apache.hadoop.hbase.mapreduce.TestTableMapReduce
> - org.apache.hadoop.hbase.mapreduce.TestMulitthreadedTableMapper
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