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https://issues.apache.org/jira/browse/HBASE-14557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14952627#comment-14952627
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Anoop Sam John commented on HBASE-14557:
----------------------------------------
For master branch, the new API is not added as we have avoided the usage of
ensureKV() from all other parts other than MR area. In MR area, we need this
change.. SO that is fine.. For master at least we will avoid the new API
which is like deprecated and we wont encourage its usage outside.
For Master how we can get rid of KV hard coding from the MR area also?
> MapReduce WALPlayer issue with NoTagsKeyValue
> ---------------------------------------------
>
> Key: HBASE-14557
> URL: https://issues.apache.org/jira/browse/HBASE-14557
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.2.0
> Reporter: Jerry He
> Assignee: Anoop Sam John
> Priority: Blocker
> Fix For: 2.0.0, 1.2.0, 1.3.0
>
> Attachments: HBASE-14557.patch, HBASE-14557.patch,
> HBASE-14557_V2.patch, HBASE-14557_branch-1.2.patch, HBASE-14557_branch-1.patch
>
>
> Running MapReduce WALPlayer to convert WAL into HFiles:
> {noformat}
> 15/10/05 20:28:08 INFO mapred.JobClient: Task Id :
> attempt_201508031611_0029_m_000000_0, Status : FAILED
> java.io.IOException: Type mismatch in value from map: expected
> org.apache.hadoop.hbase.KeyValue, recieved
> org.apache.hadoop.hbase.NoTagsKeyValue
> at
> org.apache.hadoop.mapred.MapTask$MapOutputBuffer.collect(MapTask.java:997)
> at
> org.apache.hadoop.mapred.MapTask$NewOutputCollector.write(MapTask.java:689)
> at
> org.apache.hadoop.mapreduce.task.TaskInputOutputContextImpl.write(TaskInputOutputContextImpl.java:89)
> at
> org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.write(WrappedMapper.java:112)
> at
> org.apache.hadoop.hbase.mapreduce.WALPlayer$WALKeyValueMapper.map(WALPlayer.java:111)
> at
> org.apache.hadoop.hbase.mapreduce.WALPlayer$WALKeyValueMapper.map(WALPlayer.java:96)
> at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:140)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:751)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:368)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
> at
> java.security.AccessController.doPrivileged(AccessController.java:369)
> at javax.security.auth.Subject.doAs(Subject.java:572)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1502)
> at org.apache.hadoop.mapred.Child.main(Child.java:249)
> {noformat}
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