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https://issues.apache.org/jira/browse/HADOOP-3193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12596947#action_12596947
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lohit vijayarenu commented on HADOOP-3193:
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+1 patch looks good. One small thing, the metric seem to report number of
corrupt blocks reported over time. Should it be changed to number of corrupt
blocks in the system at any point of time, possibly using MetricsIntValue. And
also, namesystem.markBlockAsCorrupt logs a message about this inside
corruptReplicas.addToCorruptReplicasMap function.
> Discovery of corrupt block reported in name node log
> ----------------------------------------------------
>
> Key: HADOOP-3193
> URL: https://issues.apache.org/jira/browse/HADOOP-3193
> Project: Hadoop Core
> Issue Type: New Feature
> Components: dfs
> Reporter: Robert Chansler
> Attachments: 3193-0.patch
>
>
> Any discovery of a corrupt/unreadable block must be reported in the name node
> log.
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