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From "xieguiming (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3873) Nodemanager is not getting decommisioned if the absolute ip is given in exclude file.
Date Fri, 27 Apr 2012 03:19:59 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13263322#comment-13263322

xieguiming commented on MAPREDUCE-3873:

The modified function:
  public boolean isValidNode(String hostName) {
    synchronized (hostsReader) {
      Set<String> hostsList = hostsReader.getHosts();
      Set<String> excludeList = hostsReader.getExcludedHosts();
      String ip = NetUtils.normalizeHostName(hostName);
      return (hostsList.isEmpty() || hostsList.contains(hostName) || hostsList
          && !(excludeList.contains(hostName) || excludeList.contains(ip));

and the function NetUtils.normalizeHostName(hostName) can not be mocked.
So, I think this patch do not need provide the unit testcase.
> Nodemanager is not getting decommisioned if the absolute ip is given in exclude file.
> -------------------------------------------------------------------------------------
>                 Key: MAPREDUCE-3873
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3873
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, nodemanager
>    Affects Versions: 0.23.0
>            Reporter: Nishan Shetty
>            Priority: Minor
>         Attachments: MAPREDUCE-3873.patch
> Configure absolute ip in "yarn.resourcemanager.nodes.exclude-path" and try to decommission
the node.
> It is not getting decommisioned.But if the hostname is given, decommissioning is happening.
> I have also given the ip-host mapping of each machine in /etc/hosts.(i,e in every machine
the other machines ip-host mapping is specified).

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