/// <exception cref="System.IO.IOException"/>
/// <exception cref="Org.Apache.Hadoop.HA.ServiceFailedException"/>
private int GetServiceState(CommandLine cmd)
{
string[] argv = cmd.GetArgs();
if (argv.Length != 1)
{
errOut.WriteLine("getServiceState: incorrect number of arguments");
PrintUsage(errOut, "-getServiceState");
return(-1);
}
HAServiceProtocol proto = ResolveTarget(argv[0]).GetProxy(GetConf(), rpcTimeoutForChecks
);
@out.WriteLine(proto.GetServiceStatus().GetState());
return(0);
}
/// <summary>Checks whether other target node is active or not</summary>
/// <param name="targetNodeToActivate"/>
/// <returns>
/// true if other target node is active or some other exception
/// occurred and forceActive was set otherwise false
/// </returns>
/// <exception cref="System.IO.IOException"/>
private bool IsOtherTargetNodeActive(string targetNodeToActivate, bool forceActive
)
{
ICollection <string> targetIds = GetTargetIds(targetNodeToActivate);
targetIds.Remove(targetNodeToActivate);
foreach (string targetId in targetIds)
{
HAServiceTarget target = ResolveTarget(targetId);
if (!CheckManualStateManagementOK(target))
{
return(true);
}
try
{
HAServiceProtocol proto = target.GetProxy(GetConf(), 5000);
if (proto.GetServiceStatus().GetState() == HAServiceProtocol.HAServiceState.Active)
{
errOut.WriteLine("transitionToActive: Node " + targetId + " is already active");
PrintUsage(errOut, "-transitionToActive");
return(true);
}
}
catch (Exception e)
{
//If forceActive switch is false then return true
if (!forceActive)
{
errOut.WriteLine("Unexpected error occurred " + e.Message);
PrintUsage(errOut, "-transitionToActive");
return(true);
}
}
}
return(false);
}