[jira] [Created] (HAMA-489) Check port availability before forking child process

[Edward J. Yoon (Created) (JIRA)]

Check port availability before forking child process
----------------------------------------------------

                 Key: HAMA-489
                 URL: https://issues.apache.org/jira/browse/HAMA-489
             Project: Hama
          Issue Type: Bug
          Components: bsp
    Affects Versions: 0.3.0
            Reporter: Edward J. Yoon
            Assignee: Edward J. Yoon
             Fix For: 0.4.0


{code}
        for (GroomServerAction action : actions) {
          Task t = ((LaunchTaskAction) action).getTask();

          int peerPort = (Constants.DEFAULT_PEER_PORT + i);
          assignedPeerNames.put(t.getTaskID(), peerPort);

          i++;
        }
{code}

Increasing naively the number of port will potentially cause "already in use" 
error. We may need to find next available port.


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