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https://issues.apache.org/jira/browse/HADOOP-5780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12707191#action_12707191
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Suresh Srinivas commented on HADOOP-5780:
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+1
> Fix slightly confusing log from "-metaSave" on NameNode
> -------------------------------------------------------
>
> Key: HADOOP-5780
> URL: https://issues.apache.org/jira/browse/HADOOP-5780
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.20.0
> Reporter: Raghu Angadi
> Assignee: Raghu Angadi
> Priority: Minor
> Fix For: 0.21.0
>
> Attachments: HADOOP-5780.patch, HADOOP-5780.patch, HADOOP-5780.patch
>
>
> After HADOOP-4103, "-metaSave" on NameNode prints "MISSING" in the line for a
> block that does not have any good replicas left.
> e.g. : {noformat}
> Metasave: Blocks waiting for replication: 1
> blk_6735500019364591152_0 (replicas: l: 0 d: 0 c: 2 e: 0 MISSING)
> 74.6.132.200:50010 : 192.168.0.107:50010 :
> {noformat}
> "0 MISSING" in the log might imply to the user that there is no missing
> block, though it implies "e(xcess replicas) : 0".
> We should fix that. Also as part of this I would like to indicate which
> datanodes are decommissioned or contain the corrupt replicas.
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