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https://issues.apache.org/jira/browse/HBASE-2372?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12849498#action_12849498
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Jean-Daniel Cryans commented on HBASE-2372:
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Another thing I'm not sure of is the reflection used in isAppend, it was useful
when we supported both plain hadoop 0.20 and hadoop 0.20 + hdfs-200. Now this
is not true for trunk since in SequenceFileLogWriter.sync we call syncFs, it
wouldn't compile if hadoop wasn't patched.
Finally with trunk I think that if dfs.support.append is false, then we should
not even boot.
> hbase trunk should check dfs.support.append and use append() to recovery
> logfiles (as in branch)
> ------------------------------------------------------------------------------------------------
>
> Key: HBASE-2372
> URL: https://issues.apache.org/jira/browse/HBASE-2372
> Project: Hadoop HBase
> Issue Type: Bug
> Reporter: ryan rawson
> Assignee: ryan rawson
> Fix For: 0.21.0
>
> Attachments: HBASE-2372.txt
>
>
> this is a backport of the feature in the hlog recovery where we call
> fs.append(logfile); then fs.close() to recover a logfile in a situation where
> we run with HDFS-200 (ie: dfs.support.append = true)
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