[jira] Resolved: (HADOOP-3499) decommission node is both in the "Live Datanodes" with "In Service" status, and in the "Dead Datanodes" of the dfs namenode web ui.

["Lohit Vijayarenu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-3499?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lohit Vijayarenu resolved HADOOP-3499.
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    Resolution: Invalid

HADOOP-3720 added info to help message and dfs user guide. Thanks Erik for updating the twiki. I will close this bug as invalid (although we updated twiki) as there were no code changes. 

> decommission node is both in the "Live Datanodes" with "In Service" status, and in the "Dead Datanodes" of the dfs namenode web ui.
> -----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-3499
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3499
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.17.0
>         Environment: linux-2.6.9
>            Reporter: lixiangna
>   Original Estimate: 72h
>  Remaining Estimate: 72h
>
> try to decommission a node by the following the steps:
> (1) write the hostname of node which will be decommissioned in a file (the exclude file)
> (2) specified the absolute path of the exclude file as a configuration parameter dfs.hosts.exclude.
> (3) run "bin/hadoop dfsadmin -refreshNodes".
> It is surprising that the node is found both in the "Live Datanodes" with "In Service" status, and in the "Dead Datanodes" of 
> the dfs namenode web ui. When copy new data to the HDFS, its Used size is increasing as other un-decommissioned nodes. 
> Obviously it is in service. Restarting the HDFS or waiting a long time(two day) havn't make the decommission yet.
> the more strange thing, If nodes are configured as the include nodes by similar steps, then these include nodes and
> the exclude node are all only in the "Dead Datanodes" lists. 
> I did many times tests in both 0.17.0 and 0.15.1. The results is same. So i think there maybe bugs.

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