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Date: Tue, 31 Mar 2015 07:18:53 +0000 (UTC)
From: "Xiaoyu Yao (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12781942.1426284592000.78055.1427786333453@Atlassian.JIRA>
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Subject: [jira] [Updated] (HDFS-7933) fsck should also report
 decommissioning replicas.
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     [ https://issues.apache.org/jira/browse/HDFS-7933?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiaoyu Yao updated HDFS-7933:
-----------------------------
    Attachment: HDFS-7933.02.patch

Thanks [~jnp] for reviewing the patch. I've updated the patch based on your feedback. 

Summary of changes:

1) adding NumberReplicas#decommissioned and NumberReplicas#decommissioning to track the decommissioned and decommissioning replicas, respectively. 

2) deprecating NumberReplicas#decommissionedReplicas() by NumberReplicas#decommissionedAndDecommissioning() to avoid the misleading name.

3) Display decommissioning and decommissioned replica separately in NamenodeFsck#check().

> fsck should also report decommissioning replicas. 
> --------------------------------------------------
>
>                 Key: HDFS-7933
>                 URL: https://issues.apache.org/jira/browse/HDFS-7933
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>            Reporter: Jitendra Nath Pandey
>            Assignee: Xiaoyu Yao
>         Attachments: HDFS-7933.00.patch, HDFS-7933.01.patch, HDFS-7933.02.patch
>
>
> Fsck doesn't count replicas that are on decommissioning nodes. If a block has all replicas on the decommissioning nodes, it will be marked as missing, which is alarming for the admins, although the system will replicate them before nodes are decommissioned.
> Fsck output should also show decommissioning replicas along with the live replicas.


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