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Date: Sun, 6 Apr 2014 20:46:18 +0000 (UTC)
From: "Haohui Mai (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12706020.1396375833218.71571.1396817178307@arcas>
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References: <JIRA.12706020.1396375833218@arcas>
Subject: [jira] [Commented] (HDFS-6180) dead node count / listing is very
 broken in JMX and old GUI
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    [ https://issues.apache.org/jira/browse/HDFS-6180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13961524#comment-13961524 ] 

Haohui Mai commented on HDFS-6180:
----------------------------------

The v5 patch addresses [~szetszwo]'s comments.

> dead node count / listing is very broken in JMX and old GUI
> -----------------------------------------------------------
>
>                 Key: HDFS-6180
>                 URL: https://issues.apache.org/jira/browse/HDFS-6180
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.3.0
>            Reporter: Travis Thompson
>            Assignee: Haohui Mai
>            Priority: Blocker
>         Attachments: HDFS-6180.000.patch, HDFS-6180.001.patch, HDFS-6180.002.patch, HDFS-6180.003.patch, HDFS-6180.004.patch, dn.log
>
>
> After bringing up a 578 node cluster with 13 dead nodes, 0 were reported on the new GUI, but showed up properly in the datanodes tab.  Some nodes are also being double reported in the deadnode and inservice section (22 show up dead, 565 show up alive, 9 duplicated nodes). 
> From /jmx (confirmed that it's the same in jconsole):
> {noformat}
> {
>     "name" : "Hadoop:service=NameNode,name=FSNamesystemState",
>     "modelerType" : "org.apache.hadoop.hdfs.server.namenode.FSNamesystem",
>     "CapacityTotal" : 5477748687372288,
>     "CapacityUsed" : 24825720407,
>     "CapacityRemaining" : 5477723861651881,
>     "TotalLoad" : 565,
>     "SnapshotStats" : "{\"SnapshottableDirectories\":0,\"Snapshots\":0}",
>     "BlocksTotal" : 21065,
>     "MaxObjects" : 0,
>     "FilesTotal" : 25454,
>     "PendingReplicationBlocks" : 0,
>     "UnderReplicatedBlocks" : 0,
>     "ScheduledReplicationBlocks" : 0,
>     "FSState" : "Operational",
>     "NumLiveDataNodes" : 565,
>     "NumDeadDataNodes" : 0,
>     "NumDecomLiveDataNodes" : 0,
>     "NumDecomDeadDataNodes" : 0,
>     "NumDecommissioningDataNodes" : 0,
>     "NumStaleDataNodes" : 1
>   },
> {noformat}
> I'm not going to include deadnode/livenodes because the list is huge, but I've confirmed there are 9 nodes showing up in both deadnodes and livenodes.


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