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Date: Sat, 1 Jul 2017 01:34:00 +0000 (UTC)
From: "Manoj Govindassamy (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.13080489.1497639635000.151161.1498872840069@Atlassian.JIRA>
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Subject: [jira] [Updated] (HDFS-11986) Dfsadmin should report erasure coding
 related information separately
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archived-at: Sat, 01 Jul 2017 01:34:04 -0000


     [ https://issues.apache.org/jira/browse/HDFS-11986?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Manoj Govindassamy updated HDFS-11986:
--------------------------------------
    Attachment: HDFS-11986.01.patch

Attached v01 patch to add Erasure Coded Block Groups stats in {{dfsadmin --report}} command. Updated {{TestDFSAdmin#testReportCommand}} to verify the newly added stats.
[~eddyxu], [~andrew.wang], can you please take a look ?

> Dfsadmin should report erasure coding related information separately 
> ---------------------------------------------------------------------
>
>                 Key: HDFS-11986
>                 URL: https://issues.apache.org/jira/browse/HDFS-11986
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: erasure-coding, hdfs
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Manoj Govindassamy
>            Assignee: Manoj Govindassamy
>              Labels: hdfs-ec-3.0-nice-to-have
>         Attachments: HDFS-11986.01.patch
>
>
> dfsadmin -report command currently reports only the aggregated block stats like below.
> {noformat}
> # hdfs dfsadmin -report
> Configured Capacity: 1498775814144 (1.36 TB)
> Present Capacity: 931852427264 (867.86 GB)
> DFS Remaining: 931805765632 (867.81 GB)
> DFS Used: 46661632 (44.50 MB)
> DFS Used%: 0.01%
> Under replicated blocks: 0
> Blocks with corrupt replicas: 0
> Missing blocks: 0
> Missing blocks (with replication factor 1): 0
> Pending deletion blocks: 0
> {noformat}
> Just like fsck, the proposal is to make dfsadmin command to report erasure coding blockgroups stats separately, like below
> {noformat}
> # hdfs dfsadmin -report
> Configured Capacity: 1498775814144 (1.36 TB)
> Present Capacity: 931852427264 (867.86 GB)
> DFS Remaining: 931805765632 (867.81 GB)
> DFS Used: 46661632 (44.50 MB)
> DFS Used%: 0.01%
> Replicated Blocks:
>   Under replicated blocks: 0
>   Blocks with corrupt replicas: 0
>   Missing blocks: 0
>   Missing blocks (with replication factor 1): 0
>   Pending deletion blocks: 0
> Erasure Coded Block Groups:
>   Under ec block groups: 0
>   EC block groups with corrupt internal blocks: 0
>   Missing ec block groups: 0
>   Pending deletion ec block groups: 0
> {noformat}
> Erasure coding specific details needed for this enhancements are already made available as part of HDFS-10999.


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