[
https://issues.apache.org/jira/browse/HBASE-14557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14949879#comment-14949879
]
Anoop Sam John commented on HBASE-14557:
----------------------------------------
We need this fix in all used places.. You can see now this ensureKeyValue is
used only with MR code( mapper, reducers etc) All these places KeyValue is the
value type as specified as in WALPlayer case. So same issue we might get. So
better fix in common.
> MapReduce WALPlayer issue with NoTagsKeyValue
> ---------------------------------------------
>
> Key: HBASE-14557
> URL: https://issues.apache.org/jira/browse/HBASE-14557
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Jerry He
> Attachments: HBASE-14557.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}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
