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https://issues.apache.org/jira/browse/HADOOP-991?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Koji Noguchi resolved HADOOP-991.
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Resolution: Won't Fix
It's a feature not a bug.
Since file's replication factor is already set to the requested level (=3), it
simply ignores the command.
It has nothing to do with the replication factor of the first block. I
misunderstood the code.
For files containing under-replicated block (< 3) , I need to
dfs -setrep 4 file
and then set it back
dfs -setrep 3 file
> dfs -setrep won't replicate the blocks if the first_block's replication
> factor == requested replication factor
> --------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-991
> URL: https://issues.apache.org/jira/browse/HADOOP-991
> Project: Hadoop
> Issue Type: Bug
> Components: dfs
> Reporter: Koji Noguchi
> Priority: Minor
>
> % hadoop fsck /user/aaa/bbb -files -blocks
> /user/aaa/bbb _________ , 2 block(s): OK
> 0. -11111111111111111 repl=3
> 1. 222222222222222222 repl=2
> % hadoop dfs -setrep 3 /user/aaa/bbb
> would not replicate the block 1.
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