[jira] [Created] (OOZIE-1880) Change of NameNode DNS entry not picked up by oozie

["Corby Wilson (JIRA)" <ji...@apache.org>]

Corby Wilson created OOZIE-1880:
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             Summary: Change of NameNode DNS entry not picked up by oozie
                 Key: OOZIE-1880
                 URL: https://issues.apache.org/jira/browse/OOZIE-1880
             Project: Oozie
          Issue Type: Bug
    Affects Versions: 4.0.1
         Environment: Amazon OS, CentOS, Amazon EMR Hadoop (Apache Hadoop 2.2)
            Reporter: Corby Wilson
            Priority: Minor


We run dynamic clusters. I.e. we terminate the cluster after a run.
But we keep the oozie server up and running so we can get to the logs for auditing and splunk ingestion.

When a new cluster is started we update a DNS server with the new IP address of the head node which contains the NameNode and YARN server.

Sometimes the oozie server seems to cache the old IP address and when a new workflow is submitted, the old IP is used and we get a connection timeout problem,

To fix this we have to restart the oozie server.

Here's the kicker, this behavior seems sporadic.  Sometimes the oozie server picks up the new IP address and sometimes it doesn't,

I'm available for more info,



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