[jira] [Created] (HBASE-27333) The condition for using the local hostname is the opposite

["Xiaolin Ha (Jira)" <ji...@apache.org>]

Xiaolin Ha created HBASE-27333:
----------------------------------

             Summary: The condition for using the local hostname is the opposite
                 Key: HBASE-27333
                 URL: https://issues.apache.org/jira/browse/HBASE-27333
             Project: HBase
          Issue Type: Bug
          Components: regionserver
    Affects Versions: 2.4.13, 3.0.0-alpha-3
            Reporter: Xiaolin Ha
            Assignee: Xiaolin Ha
             Fix For: 2.5.1, 3.0.0-alpha-4


For HRegionServer#handleReportForDutyResponse, when the hostname is different from the regionserver and master side, the condition to use the local hostname configed on regionserver is opposite.
{code:java}
if (
  !StringUtils.isBlank(useThisHostnameInstead)
    && !hostnameFromMasterPOV.equals(useThisHostnameInstead)
) {
  String msg = "Master passed us a different hostname to use; was="
    + this.useThisHostnameInstead + ", but now=" + hostnameFromMasterPOV;
  LOG.error(msg);
  throw new IOException(msg);
}
if (
  StringUtils.isBlank(useThisHostnameInstead)
    && !hostnameFromMasterPOV.equals(rpcServices.getSocketAddress().getHostName())
) {
  String msg = "Master passed us a different hostname to use; was="
    + rpcServices.getSocketAddress().getHostName() + ", but now=" + hostnameFromMasterPOV;
  LOG.error(msg);
} {code}



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