@Override
public synchronized void transitionToStandby(HAServiceProtocol.StateChangeRequestInfo reqInfo)
throws IOException {
// call refreshAdminAcls before HA state transition
// for the case that adminAcls have been updated in previous active RM
try {
refreshAdminAcls(false);
} catch (YarnException ex) {
throw new ServiceFailedException("Can not execute refreshAdminAcls", ex);
}
UserGroupInformation user = checkAccess("transitionToStandby");
checkHaStateChange(reqInfo);
try {
LOG.info("Transitioning to standby admin" + masterServiceAddress.toString());
// TODO transition leader election to standby?
rm.transitionToStandby(true);
RMAuditLogger.logSuccess(
user.getShortUserName(), "transitionToStandby", "RMHAProtocolService");
} catch (Exception e) {
RMAuditLogger.logFailure(
user.getShortUserName(),
"transitionToStandby",
adminAcl.toString(),
"RMHAProtocolService",
"Exception transitioning to standby");
throw new ServiceFailedException("Error when transitioning to Standby mode", e);
}
}
