[jira] [Resolved] (HDFS-8872) Reporting of missing blocks is different in fsck and namenode ui/metasave

["Rushabh S Shah (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-8872?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rushabh S Shah resolved HDFS-8872.
----------------------------------
    Resolution: Duplicate

bq.  I will create a new jira to alert a block as missing if all the replicas are on Decommissioned nodes.
Created HDFS-10495

> Reporting of missing blocks is different in fsck and namenode ui/metasave
> -------------------------------------------------------------------------
>
>                 Key: HDFS-8872
>                 URL: https://issues.apache.org/jira/browse/HDFS-8872
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Rushabh S Shah
>            Assignee: Rushabh S Shah
>
> Namenode ui and metasave will not report a block as missing if the only replica is on decommissioning/decomissioned node while fsck will show it as MISSING.
> Since decommissioned node can be formatted/removed anytime, we can actually lose the block.
> Its better to alert on namenode ui if the only copy is on decomissioned/decommissioning node.



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