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https://issues.apache.org/jira/browse/HBASE-19166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16238118#comment-16238118
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Ted Yu edited comment on HBASE-19166 at 2/21/18 4:40 PM:
---------------------------------------------------------
For hlog generated by 1.x, using WALPlayer from hbase2 would result in:
{code}
2017-11-02 21:22:40,907 INFO [main] mapreduce.Job: Task Id :
attempt_1509641483571_0003_m_000000_0, Status : FAILED
Error: java.lang.ClassCastException:
org.apache.hadoop.hbase.regionserver.wal.WALEdit cannot be cast to
org.apache.hadoop.hbase.wal.WALEdit
at
org.apache.hadoop.hbase.mapreduce.WALPlayer$WALCellMapper.map(WALPlayer.java:143)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:793)
{code}
HBASE-16479 relocated WALEdit.
Chatting with Enis, he mentioned adding translation for handling
hbase.regionserver.wal.WALEdit
In later comment, Stack mentioned that WALPlayer version matching the relocated
WALEdit should be used.
was (Author: [email protected]):
[~stack]:
This was logged after I commented on HBASE-16479
> Add translation for handling hbase.regionserver.wal.WALEdit
> -----------------------------------------------------------
>
> Key: HBASE-19166
> URL: https://issues.apache.org/jira/browse/HBASE-19166
> Project: HBase
> Issue Type: Bug
> Components: wal
> Reporter: Ted Yu
> Assignee: Ted Yu
> Priority: Blocker
> Fix For: 2.0.0
>
> Attachments: 19166-async-log-writer.v1.txt,
> 19166-async-log-writer.v2.txt
>
>
> For hlog generated by 1.x, using WALPlayer from hbase2 would result in:
> {code}
> 2017-11-02 21:22:40,907 INFO [main] mapreduce.Job: Task Id :
> attempt_1509641483571_0003_m_000000_0, Status : FAILED
> Error: java.lang.ClassCastException:
> org.apache.hadoop.hbase.regionserver.wal.WALEdit cannot be cast to
> org.apache.hadoop.hbase.wal.WALEdit
> at
> org.apache.hadoop.hbase.mapreduce.WALPlayer$WALCellMapper.map(WALPlayer.java:143)
> at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:793)
> {code}
> HBASE-16479 relocated WALEdit.
> Chatting with Enis, he mentioned adding translation for handling
> hbase.regionserver.wal.WALEdit
> This way, WAL from 1.x can be recognized by hbase-2
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