Although removing Thread.sleep() solves the current issue, is there any chance 
that we can (a bit) formally profile the system? I agree Thomas's point and I 
think profiling would give us a bit more ideas about the current state of 
system. 

-----Original message-----
From:Edward J. Yoon <[email protected]>
To:[email protected],[email protected]
Date:Fri, 4 Nov 2011 18:43:17 +0900
Subject:Re: Experiences with large hama cluster.

After deleting Thread.sleep(), I'm very very satisfied. Haha! Now my
Hama is running on 200 nodes using 2 thousand tasks. It's comedy. We
have to clean up the codes.

> We should remove that legacy code e.g. using another thread for reporting 
> task.

I'm +1. Please open new ticket.

On Fri, Nov 4, 2011 at 6:33 PM, ChiaHung Lin <[email protected]> wrote:
> We should remove that legacy code e.g. using another thread for reporting 
> task.
>
> This just reminds me of another issue. When doing checkpoint, the patch 
> provided also uses the main thread for checkpointing. This would slow down 
> the task completion as the messages size grows. We should perhaps move it to 
> another thread for saving data in queue as well.
>
> -----Original message-----
> From:Edward J. Yoon <[email protected]>
> To:[email protected],[email protected]
> Date:Fri, 4 Nov 2011 18:01:00 +0900
> Subject:Re: Experiences with large hama cluster.
>
> I found, "Thread.sleep(REPORT_INTERVAL)" in a loop :/
>
> ----
>         for (Map.Entry<TaskAttemptID, TaskInProgress> e : runningTasks
>            .entrySet()) {          Thread.sleep(REPORT_INTERVAL);
>     TaskInProgress tip = e.getValue();          TaskStatus taskStatus
> = tip.getStatus();
>           if (taskStatus.getRunState() == TaskStatus.State.RUNNING) {
>           taskStatus.setProgress(taskStatus.getSuperstepCount());
>             if (!tip.runner.isAlive()) {              if
> (taskStatus.getRunState() != TaskStatus.State.FAILED) {
> taskStatus.setRunState(TaskStatus.State.SUCCEEDED);
> LOG.info("Task '" + taskStatus.getTaskId().toString()
>   + "' has completed.");              }
> taskStatus.setPhase(TaskStatus.Phase.CLEANUP);            }          }
>           taskStatuses.add(taskStatus);        }
>         doReport(taskStatuses);        Thread.sleep(REPORT_INTERVAL);
> 2011/11/4 ChiaHung Lin <[email protected]>:
>> The current way how groom reports status back to master is done by 
>> periodically rpc using groom server's main thread. Probably this action can 
>> be executed by another thread.
>>
>> If I remember correctly, client would only receive the final superstep 
>> report if child process reports status in done() method.
>>
>> But I think profiling would better tell us what parts is the bottleneck.
>>
>> -----Original message-----
>> From:Tommaso Teofili <[email protected]>
>> To:[email protected]
>> Date:Thu, 3 Nov 2011 12:18:41 +0100
>> Subject:Re: Experiences with large hama cluster.
>>
>> 2011/11/3 Thomas Jungblut <[email protected]>
>>
>>> It is difficult to say what the real bottleneck is.
>>>
>>> >What If each child processes reports directly using done() method?
>>>
>>> You want to report directly from a task to the master?
>>> We need the status update to detect failure and stuff. We can make it less
>>> frequent, e.G. every n-th superstep.
>>> But I don't think that this is going to make the whole computation soo much
>>> faster.
>>>
>>> We simply need to profile it... Yourkit has these OpenSource licenses,
>>> maybe we write them an email.
>>> There are several other Apache projects using it. Flume for example:
>>> https://cwiki.apache.org/FLUME/ (scroll down to the bottom).
>>>
>>> It could only be helpful.
>>>
>>>
>> +1
>> Tommaso
>>
>>
>>>  2011/11/3 Edward J. Yoon <[email protected]>
>>>
>>> > > We have the advantage that we don't have to constantly launch new task
>>> > for> each input.> Once we have our n-task launched, they run for the
>>> whole
>>> > computation.
>>> >
>>> > You're right.
>>> >
>>> > > How should we fix/improve this?
>>> >
>>> > GroomServer checks task statuses and reports to master periodically.
>>> >
>>> > What If each child processes reports directly using done() method?
>>> > On Thu, Nov 3, 2011 at 7:57 PM, Thomas Jungblut
>>> > <[email protected]> wrote:
>>> > > We have the advantage that we don't have to constantly launch new task
>>> > for
>>> > > each input.
>>> > > Once we have our n-task launched, they run for the whole computation.
>>> > >
>>> > > How should we fix/improve this?
>>> > >
>>> > > 2011/11/3 Edward J. Yoon <[email protected]>
>>> > >
>>> > >> Launching Map tasks is also slow as you know. And, in our case, + ZK
>>> > >> client instance creation time.
>>> > >>
>>> > >> On Thu, Nov 3, 2011 at 7:42 PM, Thomas Jungblut
>>> > >> <[email protected]> wrote:
>>> > >> > Are you sure? I think we inherited the costly task setup from Hadoop
>>> > now
>>> > >> by
>>> > >> > copying everything.
>>> > >> >
>>> > >> > 2011/11/3 Edward J. Yoon <[email protected]>
>>> > >> >
>>> > >> >> Not yet. but I think one of reasons is the creation time of a zk
>>> > >> >> client instance.
>>> > >> >>
>>> > >> >> On Thu, Nov 3, 2011 at 6:35 PM, Tommaso Teofili
>>> > >> >> <[email protected]> wrote:
>>> > >> >> > Thanks for sharing Edward, were you also able to debug why that
>>> was
>>> > >> the
>>> > >> >> > case?
>>> > >> >> > Tommaso
>>> > >> >> >
>>> > >> >> > 2011/11/3 Edward J. Yoon <[email protected]>
>>> > >> >> >
>>> > >> >> >> I tested Hama r.1197018 on 100 nodes cluster using 2 tasks per
>>> > node.
>>> > >> >> >>
>>> > >> >> >> The all the functions are works well, but task launching and
>>> > >> finishing
>>> > >> >> >> are *very slow*.
>>> > >> >> >>
>>> > >> >> >> [root@hnode-3-7 hama-trunk]# core/bin/start-bspd.sh
>>> > >> >> >> hnode-3-7: starting zookeeper, logging to
>>> > >> >> >>
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> >
>>> /usr/local/src/hama-trunk/core/bin/../logs/hama-root-zookeeper-hnode-3-7.out
>>> > >> >> >> starting bspmaster, logging to
>>> > >> >> >>
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> >
>>> /usr/local/src/hama-trunk/core/bin/../logs/hama-root-bspmaster-hnode-3-7.out
>>> > >> >> >> 2011-11-03 16:29:14.382::INFO:  Logging to STDERR via
>>> > >> >> >> org.mortbay.log.StdErrLog
>>> > >> >> >> 2011-11-03 16:29:14.430::INFO:  jetty-6.1.14
>>> > >> >> >> 2011-11-03 16:29:14.684::INFO:  Started
>>> > >> SelectChannelConnector@hnode-3-7
>>> > >> >> >> :40013
>>> > >> >> >> hnode-3-7: starting groom, logging to
>>> > >> >> >>
>>> > >>
>>> /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-7.out
>>> > >> >> >> hnode-3-8: starting groom, logging to
>>> > >> >> >>
>>> > >>
>>> /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-8.out
>>> > >> >> >> hnode-3-10: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-10.out
>>> > >> >> >> hnode-3-9: starting groom, logging to
>>> > >> >> >>
>>> > >>
>>> /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-9.out
>>> > >> >> >> hnode-3-12: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-12.out
>>> > >> >> >> hnode-3-13: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-13.out
>>> > >> >> >> hnode-3-11: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-11.out
>>> > >> >> >> hnode-3-15: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-15.out
>>> > >> >> >> hnode-3-16: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-16.out
>>> > >> >> >> hnode-3-18: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-18.out
>>> > >> >> >> hnode-3-14: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-14.out
>>> > >> >> >> hnode-3-17: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-17.out
>>> > >> >> >> hnode-3-20: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-20.out
>>> > >> >> >> hnode-3-21: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-21.out
>>> > >> >> >> hnode-3-19: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-19.out
>>> > >> >> >> hnode-3-22: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-22.out
>>> > >> >> >> hnode-3-23: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-23.out
>>> > >> >> >> hnode-3-24: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-24.out
>>> > >> >> >> hnode-3-28: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-28.out
>>> > >> >> >> hnode-3-25: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-25.out
>>> > >> >> >> hnode-3-27: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-27.out
>>> > >> >> >> hnode-3-26: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-26.out
>>> > >> >> >> hnode-3-30: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-30.out
>>> > >> >> >> hnode-3-29: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-29.out
>>> > >> >> >> hnode-3-31: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-31.out
>>> > >> >> >> hnode-3-32: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-32.out
>>> > >> >> >> hnode-3-33: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-33.out
>>> > >> >> >> hnode-3-35: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-35.out
>>> > >> >> >> hnode-3-34: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-34.out
>>> > >> >> >> hnode-3-37: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-37.out
>>> > >> >> >> hnode-3-38: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-38.out
>>> > >> >> >> hnode-3-36: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-36.out
>>> > >> >> >> hnode-3-39: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-39.out
>>> > >> >> >> hnode-3-40: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-40.out
>>> > >> >> >> hnode-3-42: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-42.out
>>> > >> >> >> hnode-3-43: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-43.out
>>> > >> >> >> hnode-3-45: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-45.out
>>> > >> >> >> hnode-3-41: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-41.out
>>> > >> >> >> hnode-3-44: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-44.out
>>> > >> >> >> hnode-3-46: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-46.out
>>> > >> >> >> hnode-3-47: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-47.out
>>> > >> >> >> hnode-3-49: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-49.out
>>> > >> >> >> hnode-3-50: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-50.out
>>> > >> >> >> hnode-3-51: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-51.out
>>> > >> >> >> hnode-3-48: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-48.out
>>> > >> >> >> hnode-3-55: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-55.out
>>> > >> >> >> hnode-3-53: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-53.out
>>> > >> >> >> hnode-3-52: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-52.out
>>> > >> >> >> hnode-3-56: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-56.out
>>> > >> >> >> hnode-3-54: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-54.out
>>> > >> >> >> hnode-3-60: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-60.out
>>> > >> >> >> hnode-3-59: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-59.out
>>> > >> >> >> hnode-3-58: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-58.out
>>> > >> >> >> hnode-3-57: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-57.out
>>> > >> >> >> hnode-3-62: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-62.out
>>> > >> >> >> hnode-3-63: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-63.out
>>> > >> >> >> hnode-3-64: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-64.out
>>> > >> >> >> hnode-3-65: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-65.out
>>> > >> >> >> hnode-3-67: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-67.out
>>> > >> >> >> hnode-3-70: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-70.out
>>> > >> >> >> hnode-3-61: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-61.out
>>> > >> >> >> hnode-3-66: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-66.out
>>> > >> >> >> hnode-3-68: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-68.out
>>> > >> >> >> hnode-3-72: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-72.out
>>> > >> >> >> hnode-3-69: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-69.out
>>> > >> >> >> hnode-3-71: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-71.out
>>> > >> >> >> hnode-3-75: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-75.out
>>> > >> >> >> hnode-3-74: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-74.out
>>> > >> >> >> hnode-3-73: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-73.out
>>> > >> >> >> hnode-3-77: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-77.out
>>> > >> >> >> hnode-3-76: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-76.out
>>> > >> >> >> hnode-3-79: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-79.out
>>> > >> >> >> hnode-3-78: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-78.out
>>> > >> >> >> hnode-3-81: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-81.out
>>> > >> >> >> hnode-3-80: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-80.out
>>> > >> >> >> hnode-3-82: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-82.out
>>> > >> >> >> hnode-3-83: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-83.out
>>> > >> >> >> hnode-3-85: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-85.out
>>> > >> >> >> hnode-3-86: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-86.out
>>> > >> >> >> hnode-3-84: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-84.out
>>> > >> >> >> hnode-3-87: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-87.out
>>> > >> >> >> hnode-3-88: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-88.out
>>> > >> >> >> hnode-3-89: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-89.out
>>> > >> >> >> hnode-3-90: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-90.out
>>> > >> >> >> hnode-3-91: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-91.out
>>> > >> >> >> hnode-3-95: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-95.out
>>> > >> >> >> hnode-3-93: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-93.out
>>> > >> >> >> hnode-3-94: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-94.out
>>> > >> >> >> hnode-3-92: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-92.out
>>> > >> >> >> hnode-3-96: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-96.out
>>> > >> >> >> hnode-3-97: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-97.out
>>> > >> >> >> hnode-3-98: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-98.out
>>> > >> >> >> hnode-3-99: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> > /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-99.out
>>> > >> >> >> hnode-3-102: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> >
>>> /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-102.out
>>> > >> >> >> hnode-3-100: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> >
>>> /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-100.out
>>> > >> >> >> hnode-3-104: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> >
>>> /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-104.out
>>> > >> >> >> hnode-3-101: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> >
>>> /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-101.out
>>> > >> >> >> hnode-3-105: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> >
>>> /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-105.out
>>> > >> >> >> hnode-3-106: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> >
>>> /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-106.out
>>> > >> >> >> hnode-3-103: starting groom, logging to
>>> > >> >> >>
>>> > >> >>
>>> > >>
>>> >
>>> /usr/local/src/hama-trunk/core/bin/../logs/hama-root-groom-hnode-3-103.out
>>> > >> >> >> [root@hnode-3-7 hama-trunk]# ls
>>> > >> >> >> CHANGES.txt  core  DISCLAIMER.txt  examples  graph  lib
>>> >  LICENSE.txt
>>> > >> >> >> NOTICE.txt  pom.xml  README.txt  src  target  yarn
>>> > >> >> >> [root@hnode-3-7 hama-trunk]# core/bin/hama jar
>>> > >> >> >> examples/target/hama-examples-0.4.0-incubating-SNAPSHOT.jar pi
>>> > >> >> >> 11/11/03 16:36:45 INFO bsp.BSPJobClient: Running job:
>>> > >> >> job_201111031629_0001
>>> > >> >> >> 11/11/03 16:36:48 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 0
>>> > >> >> >> 11/11/03 16:38:09 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 1
>>> > >> >> >> 11/11/03 16:38:12 INFO bsp.BSPJobClient: The total number of
>>> > >> >> supersteps: 1
>>> > >> >> >> Estimated value of PI is        3.1420720000000006
>>> > >> >> >> Job Finished in 90.868 seconds
>>> > >> >> >> [root@hnode-3-7 hama-trunk]# core/bin/hama jar
>>> > >> >> >> examples/target/hama-examples-0.4.0-incubating-SNAPSHOT.jar
>>> bench
>>> > 16
>>> > >> >> >> 1000 30
>>> > >> >> >> 11/11/03 16:40:05 INFO bsp.BSPJobClient: Running job:
>>> > >> >> job_201111031629_0002
>>> > >> >> >> 11/11/03 16:40:08 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 0
>>> > >> >> >> 11/11/03 16:41:47 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 1
>>> > >> >> >> 11/11/03 16:41:50 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 3
>>> > >> >> >> 11/11/03 16:41:53 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 5
>>> > >> >> >> 11/11/03 16:41:59 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 7
>>> > >> >> >> 11/11/03 16:42:02 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 10
>>> > >> >> >> 11/11/03 16:42:05 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 14
>>> > >> >> >> 11/11/03 16:42:08 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 19
>>> > >> >> >> 11/11/03 16:42:11 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 24
>>> > >> >> >> 11/11/03 16:42:14 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 28
>>> > >> >> >> 11/11/03 16:42:17 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 30
>>> > >> >> >> 11/11/03 16:42:20 INFO bsp.BSPJobClient: The total number of
>>> > >> >> supersteps: 30
>>> > >> >> >> Job Finished in 136.781 seconds
>>> > >> >> >> [root@hnode-3-7 hama-trunk]# core/bin/hama jar
>>> > >> >> >> examples/target/hama-examples-0.4.0-incubating-SNAPSHOT.jar
>>> bench
>>> > 16
>>> > >> >> >> 10000 30
>>> > >> >> >> 11/11/03 16:43:56 INFO bsp.BSPJobClient: Running job:
>>> > >> >> job_201111031629_0003
>>> > >> >> >> 11/11/03 16:43:59 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 0
>>> > >> >> >> 11/11/03 16:45:42 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 1
>>> > >> >> >> 11/11/03 16:45:48 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 2
>>> > >> >> >> 11/11/03 16:45:54 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 3
>>> > >> >> >> 11/11/03 16:45:57 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 4
>>> > >> >> >> 11/11/03 16:46:03 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 5
>>> > >> >> >> 11/11/03 16:46:06 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 6
>>> > >> >> >> 11/11/03 16:46:09 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 7
>>> > >> >> >> 11/11/03 16:46:12 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 8
>>> > >> >> >> 11/11/03 16:46:15 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 9
>>> > >> >> >> 11/11/03 16:46:18 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 10
>>> > >> >> >> 11/11/03 16:46:21 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 11
>>> > >> >> >> 11/11/03 16:46:24 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 12
>>> > >> >> >> 11/11/03 16:46:27 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 13
>>> > >> >> >> 11/11/03 16:46:30 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 14
>>> > >> >> >> 11/11/03 16:46:33 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 15
>>> > >> >> >> 11/11/03 16:46:36 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 16
>>> > >> >> >> 11/11/03 16:46:39 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 17
>>> > >> >> >> 11/11/03 16:46:42 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 19
>>> > >> >> >> 11/11/03 16:46:45 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 20
>>> > >> >> >> 11/11/03 16:46:51 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 21
>>> > >> >> >> 11/11/03 16:46:54 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 22
>>> > >> >> >> 11/11/03 16:46:57 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 23
>>> > >> >> >> 11/11/03 16:47:00 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 24
>>> > >> >> >> 11/11/03 16:47:03 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 25
>>> > >> >> >> 11/11/03 16:47:06 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 26
>>> > >> >> >> 11/11/03 16:47:09 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 27
>>> > >> >> >> 11/11/03 16:47:12 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 28
>>> > >> >> >> 11/11/03 16:47:15 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 29
>>> > >> >> >> 11/11/03 16:47:18 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 30
>>> > >> >> >> 11/11/03 16:47:24 INFO bsp.BSPJobClient: The total number of
>>> > >> >> supersteps: 30
>>> > >> >> >> Job Finished in 209.516 seconds
>>> > >> >> >> [root@hnode-3-7 hama-trunk]# core/bin/hama jar
>>> > >> >> >> examples/target/hama-examples-0.4.0-incubating-SNAPSHOT.jar
>>> bench
>>> > 16
>>> > >> >> >> 100000 30
>>> > >> >> >> 11/11/03 16:48:59 INFO bsp.BSPJobClient: Running job:
>>> > >> >> job_201111031629_0004
>>> > >> >> >> 11/11/03 16:49:02 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 0
>>> > >> >> >> 11/11/03 16:50:50 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 1
>>> > >> >> >> 11/11/03 16:51:08 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 2
>>> > >> >> >> 11/11/03 16:51:26 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 3
>>> > >> >> >> 11/11/03 16:51:44 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 4
>>> > >> >> >> 11/11/03 16:51:59 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 5
>>> > >> >> >> 11/11/03 16:52:17 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 6
>>> > >> >> >> 11/11/03 16:52:39 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 7
>>> > >> >> >> 11/11/03 16:52:54 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 8
>>> > >> >> >> 11/11/03 16:53:12 INFO bsp.BSPJobClient: Current supersteps
>>> > number: 9
>>> > >> >> >> 11/11/03 16:53:39 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 10
>>> > >> >> >> 11/11/03 16:53:57 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 11
>>> > >> >> >> 11/11/03 16:54:12 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 12
>>> > >> >> >> 11/11/03 16:54:30 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 13
>>> > >> >> >> 11/11/03 16:54:48 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 14
>>> > >> >> >> 11/11/03 16:55:03 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 15
>>> > >> >> >> 11/11/03 16:55:18 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 16
>>> > >> >> >> 11/11/03 16:55:36 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 17
>>> > >> >> >> 11/11/03 16:55:51 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 18
>>> > >> >> >> 11/11/03 16:56:09 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 19
>>> > >> >> >> 11/11/03 16:56:24 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 20
>>> > >> >> >> 11/11/03 16:56:42 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 21
>>> > >> >> >> 11/11/03 16:56:57 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 22
>>> > >> >> >> 11/11/03 16:57:15 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 23
>>> > >> >> >> 11/11/03 16:57:30 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 24
>>> > >> >> >> 11/11/03 16:57:48 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 25
>>> > >> >> >> 11/11/03 16:58:09 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 26
>>> > >> >> >> 11/11/03 16:58:24 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 27
>>> > >> >> >> 11/11/03 16:58:39 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 28
>>> > >> >> >> 11/11/03 16:58:57 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 29
>>> > >> >> >> 11/11/03 16:59:12 INFO bsp.BSPJobClient: Current supersteps
>>> > number:
>>> > >> 30
>>> > >> >> >> 11/11/03 16:59:36 INFO bsp.BSPJobClient: The total number of
>>> > >> >> supersteps: 30
>>> > >> >> >> Job Finished in 639.003 seconds
>>> > >> >> >>
>>> > >> >> >>
>>> > >> >> >> --
>>> > >> >> >> Best Regards, Edward J. Yoon
>>> > >> >> >> @eddieyoon
>>> > >> >> >>
>>> > >> >> >
>>> > >> >>
>>> > >> >>
>>> > >> >>
>>> > >> >> --
>>> > >> >> Best Regards, Edward J. Yoon
>>> > >> >> @eddieyoon
>>> > >> >>
>>> > >> >
>>> > >> >
>>> > >> >
>>> > >> > --
>>> > >> > Thomas Jungblut
>>> > >> > Berlin <[email protected]>
>>> > >> >
>>> > >>
>>> > >>
>>> > >>
>>> > >> --
>>> > >> Best Regards, Edward J. Yoon
>>> > >> @eddieyoon
>>> > >>
>>> > >
>>> > >
>>> > >
>>> > > --
>>> > > Thomas Jungblut
>>> > > Berlin <[email protected]>
>>> > >
>>> >
>>> >
>>> >
>>> > --
>>> > Best Regards, Edward J. Yoon
>>> > @eddieyoon
>>> >
>>>
>>>
>>>
>>> --
>>> Thomas Jungblut
>>> Berlin <[email protected]>
>>>
>>
>>
>> --
>> ChiaHung Lin
>> Department of Information Management
>> National University of Kaohsiung
>> Taiwan
>>
>
>
>
> --
> Best Regards, Edward J. Yoon
> @eddieyoon
>
>
> --
> ChiaHung Lin
> Department of Information Management
> National University of Kaohsiung
> Taiwan
>



-- 
Best Regards, Edward J. Yoon
@eddieyoon


--
ChiaHung Lin
Department of Information Management
National University of Kaohsiung
Taiwan

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