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From "xieguiming (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-8351) Add exclude/include file , need restart NN or RM.
Date Thu, 03 May 2012 12:34:50 GMT
xieguiming created HADOOP-8351:
----------------------------------

             Summary: Add exclude/include file , need restart NN or RM.
                 Key: HADOOP-8351
                 URL: https://issues.apache.org/jira/browse/HADOOP-8351
             Project: Hadoop Common
          Issue Type: Bug
          Components: util
         Environment: suse
            Reporter: xieguiming


"yarn.resourcemanager.nodes.include-path" default value is "", if we need add one include
file. and we must restart the RM. 
I suggest that adding one include or exclude file, no need restart the RM. only execute the
refresh command.
NN is the same.

Modify the HostsFileReader class:

public HostsFileReader(String inFile, 
                         String exFile)

to

 public HostsFileReader(Configuration conf, 
                         String NODES_INCLUDE_FILE_PATH,String DEFAULT_NODES_INCLUDE_FILE_PATH,
                        String NODES_EXCLUDE_FILE_PATH,String DEFAULT_NODES_EXCLUDE_FILE_PATH)


and thus, we can read the config file dynamic. and no need to restart the NM/NN.


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