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Posted to dev@ambari.apache.org by "Lav Jain (JIRA)" <ji...@apache.org> on 2015/12/09 22:04:10 UTC

[jira] [Created] (AMBARI-14301) Co-locate HAWQSEGMENT on hosts that have DATANODE component

Lav Jain created AMBARI-14301:
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             Summary: Co-locate HAWQSEGMENT on hosts that have DATANODE component 
                 Key: AMBARI-14301
                 URL: https://issues.apache.org/jira/browse/AMBARI-14301
             Project: Ambari
          Issue Type: Improvement
          Components: ambari-web
    Affects Versions: trunk
            Reporter: Lav Jain
            Assignee: Lav Jain
            Priority: Minor
             Fix For: 2.3.0


Looks like stackadvisor is used only upon a fresh install if no changes are made to the master components. In that case, the client/slaves are installed on all the hosts, so HAWQSEGMENT is co-located with DATANODE by default.

If HDFS is already installed and HAWQ is enabled using add services, then Ambari chooses all hosts that do not have a MASTER component installed. This determination is being done in the javascript code.

This patch is changing the hostlist for HAWQSEGMENT to be the same as DATANODE in the latter case.



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