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https://issues.apache.org/jira/browse/HDFS-5568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13832442#comment-13832442
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Vinay commented on HDFS-5568:
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bq. they are something special files and not as part of main file tree
logically. On user interest we can include them like openfiles.
Yes, I agree, they are special files. Since blocks inside only snapshots are
also counted in deciding the overall cluster health, I think it will be good to
consider these always. For openfiles we already have a separate flag.
If you strongly feel flagging is enough, then also I am ok with it.
> Support inclusion of snapshot paths in Namenode fsck
> ----------------------------------------------------
>
> Key: HDFS-5568
> URL: https://issues.apache.org/jira/browse/HDFS-5568
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: snapshots
> Reporter: Vinay
> Assignee: Vinay
> Attachments: HDFS-5568-1.patch, HDFS-5568.patch
>
>
> Support Fsck to check the snapshot paths also for inconsistency.
> Currently Fsck supports snapshot paths if path given explicitly refers to a
> snapshot path.
> We have seen safemode problems in our clusters which were due to blocks
> missing which were only present inside snapshots. But "hdfs fsck /" shows
> HEALTHY.
> So supporting snapshot paths also during fsck (may be by default or on
> demand) would be helpful in these cases instead of specifying each and every
> snapshottable directory.
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