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From "rajeshbabu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-8968) Avoid call to zk in HRegionServer#getMaster() to log the master address which already read from the zk.
Date Wed, 17 Jul 2013 15:20:49 GMT
rajeshbabu created HBASE-8968:
---------------------------------

             Summary: Avoid call to zk in HRegionServer#getMaster() to log the master address
which already read from the zk. 
                 Key: HBASE-8968
                 URL: https://issues.apache.org/jira/browse/HBASE-8968
             Project: HBase
          Issue Type: Bug
          Components: Zookeeper
    Affects Versions: 0.94.9
            Reporter: rajeshbabu
            Assignee: rajeshbabu
            Priority: Minor
             Fix For: 0.94.10


To log the master address we are making an extra call to zookeeper which we already read and
trying to connect to the address.
{code}
      masterServerName = this.masterAddressManager.getMasterAddress();
      if (masterServerName == null) {
        if (!keepLooping()) {
          // give up with no connection.
          LOG.debug("No master found and cluster is stopped; bailing out");
          return null;
        }
        LOG.debug("No master found; retry");
        previousLogTime = System.currentTimeMillis();

        sleeper.sleep();
        continue;
      }

      masterIsa =
        new InetSocketAddress(masterServerName.getHostname(), masterServerName.getPort());

      LOG.info("Attempting connect to Master server at " +
        this.masterAddressManager.getMasterAddress());
{code}

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