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From "Srimanth Gunturi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-2216) Hadoop2: Empty stack configuration values become 'null' on the node
Date Wed, 29 May 2013 08:20:20 GMT
Srimanth Gunturi created AMBARI-2216:
----------------------------------------

             Summary: Hadoop2: Empty stack configuration values become 'null' on the node
                 Key: AMBARI-2216
                 URL: https://issues.apache.org/jira/browse/AMBARI-2216
             Project: Ambari
          Issue Type: Bug
          Components: client
    Affects Versions: 1.2.4
            Reporter: Srimanth Gunturi
            Assignee: Srimanth Gunturi
             Fix For: 1.4.0


When viewing a new install of Hadoop2 that includes MAPREDUCE2, some properties defined as
empty string are sent to the server as 'null':
Stack:
{noformat}
  <property>
    <name>mapred.job.tracker</name>
    <value></value>
  </property>
{noformat}
Server:
{noformat}
  <property>
    <name>mapred.job.tracker</name>
    <value>null</value>
  </property>
{noformat}

The following properties exhibit this behavior:
mapred.system.dir
mapred.cluster.reduce.memory.mb
mapred.hosts
mapred.jobtracker.maxtasks.per.job
mapred.userlog.retain.hours
mapred.local.dir
mapred.task.tracker.task-controller
mapred.tasktracker.map.tasks.maximum
mapred.hosts.exclude
mapred.cluster.max.map.memory.mb
mapred.cluster.max.reduce.memory.mb
mapred.job.tracker.http.address
mapred.jobtracker.taskScheduler
mapred.healthChecker.script.path
mapred.cluster.map.memory.mb


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