That exception looks like you don't have post-review on your PATH, can you
confirm?


On Thu, Apr 18, 2013 at 10:24 PM, 王国栋 <[email protected]> wrote:

> Hi Vinod,
>
> I have installed the post-review, we use review board in our company too.
>
> From the error message, it seems like I didn't give the right cmd arguments
> for support/post-review.py ?
>
>
> Guodong
>
>
> On Fri, Apr 19, 2013 at 11:31 AM, Vinod Kone <[email protected]> wrote:
>
> > you need to install post-review from
> > http://www.reviewboard.org/docs/manual/dev/users/tools/post-review/
> >
> >
> > @vinodkone
> >
> >
> > On Thu, Apr 18, 2013 at 7:55 PM, 王国栋 <[email protected]> wrote:
> >
> > > Hi ben,
> > >
> > > I can not run post-review script in my laptop.
> > > the error is as follow
> > >
> > > guodong@guodong-Vostro-3400:~/workspace/mesos-trunk/hadoop/mesos
> > > [mesos-guodong *]$ ../../support/post-reviews.py --server=
> > > https://reviews.apache.org --tracking-branch=mesos-guodong
> > > --target-groups=mesos --open
> > > Running post-review across all of ...
> > > 6099b774457c96b7659e05bb7b46ef41f8031346 - (HEAD, mesos-guodong) fix
> > > NullPointerException in MesosScheduler when using fairscheduler as the
> > > underlying scheduler (28 minutes ago)
> > > Creating diff of:
> > >
> > > 6099b774457c96b7659e05bb7b46ef41f8031346 - (HEAD, mesos-guodong) fix
> > > NullPointerException in MesosScheduler when using fairscheduler as the
> > > underlying scheduler
> > > ... with parent diff created from:
> > >
> > >
> > > Press enter to continue or 'Ctrl-C' to skip.
> > >
> > > Traceback (most recent call last):
> > >   File "../../support/post-reviews.py", line 156, in <module>
> > >     '--revision-range=' + revision_range] + sys.argv[1:]).strip()
> > >   File "../../support/post-reviews.py", line 44, in execute
> > >     shell=False)
> > >   File "/usr/lib/python2.7/subprocess.py", line 679, in __init__
> > >     errread, errwrite)
> > >   File "/usr/lib/python2.7/subprocess.py", line 1249, in _execute_child
> > >     raise child_exception
> > > OSError: [Errno 2] No such file or directory
> > >
> > >
> > > Where can I find some help information about this script?
> > >
> > > Thanks.
> > >
> > > Guodong
> > >
> > >
> > > On Fri, Apr 19, 2013 at 6:34 AM, Benjamin Mahler
> > > <[email protected]>wrote:
> > >
> > > > Hm.. I've added you as a contributor, can you try assigning it to
> > > yourself
> > > > now?
> > > >
> > > > For reviews, we use post-reviews.py located in the mesos/support
> > > directory,
> > > > it will send 1 review per commit in your git branch. Let me know if
> you
> > > > need help using it!
> > > >
> > > >
> > > > On Thu, Apr 18, 2013 at 6:07 AM, 王国栋 <[email protected]> wrote:
> > > >
> > > > > Hi Ben,
> > > > >
> > > > > I have created an issue in JIRA. But I don't have the permission to
> > > > assign
> > > > > issue to myself. Could you please give me the permission? Thanks. I
> > > will
> > > > > post an review later.
> > > > >
> > > > > BTW: are there any rules when we create an JIRA issue or post an
> > > review?
> > > > >
> > > > > Guodong
> > > > >
> > > > >
> > > > > On Thu, Apr 18, 2013 at 2:05 AM, Benjamin Mahler
> > > > > <[email protected]>wrote:
> > > > >
> > > > > > Hey Guodong, this is a great opportunity for you to contribute to
> > > > mesos!
> > > > > > I'm confused by the diff you posted but I'll take a look when you
> > > send
> > > > > the
> > > > > > review.
> > > > > >
> > > > > > Also, feel free to file a JIRA ticket and assign to yourself so
> we
> > > > don't
> > > > > > lose track of this in the meantime:
> > > > > > https://issues.apache.org/jira/browse/MESOS
> > > > > >
> > > > > > Thanks!
> > > > > >
> > > > > >
> > > > > > On Wed, Apr 17, 2013 at 12:39 AM, 王国栋 <[email protected]>
> wrote:
> > > > > >
> > > > > > > Hi Vinod,
> > > > > > >
> > > > > > > I will post a review ASAP.  Thanks for your information.
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > Guodong
> > > > > > >
> > > > > > >
> > > > > > > On Wed, Apr 17, 2013 at 3:20 PM, Vinod Kone <
> [email protected]
> > >
> > > > > wrote:
> > > > > > >
> > > > > > > > Hi Guodong,
> > > > > > > >
> > > > > > > > Thanks a ton for finding and fixing the bug! If you can
> submit
> > > the
> > > > > > patch
> > > > > > > > through Apache review board <https://reviews.apache.org>
> (you
> > > > might
> > > > > > need
> > > > > > > > to
> > > > > > > > sign up for an Apache account), we can get it committed asap!
> > > > > > > >
> > > > > > > > If you are using "git", you could use
> "support/post-reviews.py"
> > > in
> > > > > our
> > > > > > > repo
> > > > > > > > to help you submit the patch (or you can just manually upload
> > the
> > > > > diff
> > > > > > to
> > > > > > > > review board). Let me know if you have any questions/need
> help.
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > On Wed, Apr 17, 2013 at 12:09 AM, 王国栋 <[email protected]>
> > > wrote:
> > > > > > > >
> > > > > > > > > hi,
> > > > > > > > >
> > > > > > > > > When I am trying to use fairscheduler as the low level
> > > scheduler
> > > > > for
> > > > > > > > > hadoop, when I submit a job, I got NULL pointer exception
> in
> > > > > > > jobtracker.
> > > > > > > > >
> > > > > > > > > I go through the hadoop code, and I think it is a bug in
> > > > > > > MesosScheduler,
> > > > > > > > > Because when the job is submitted to jobtracker, the status
> > of
> > > > job
> > > > > is
> > > > > > > > PREP,
> > > > > > > > > and at this time, fairscheduler will not schedule any task
> of
> > > > this
> > > > > > job,
> > > > > > > > so
> > > > > > > > >
> > > > > > > > >     // Let the underlying task scheduler do the actual task
> > > > > > scheduling.
> > > > > > > > >     List<Task> tasks =
> > taskScheduler.assignTasks(taskTracker);
> > > > > > > > > tasks will be null. And then the following exception
> happnes.
> > > > > > > > >
> > > > > > > > > 13/04/17 11:30:14 INFO ipc.Server: IPC Server handler 8 on
> > > 9011,
> > > > > call
> > > > > > > > >
> heartbeat(org.apache.hadoop.mapred.TaskTrackerStatus@5f0704e1
> > ,
> > > > > > false,
> > > > > > > > > false, true, 0) from 10.47.6.24:32978: error:
> > > > java.io.IOException:
> > > > > > > > > java.lang.NullPointerException
> > > > > > > > > java.io.IOException: java.lang.NullPointerException
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> org.apache.hadoop.mapred.MesosScheduler.assignTasks(MesosScheduler.java:229)
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Also, I modify MesosScheduler a little bit, and it seems
> that
> > > the
> > > > > bug
> > > > > > > is
> > > > > > > > > fixed.
> > > > > > > > > the diff is as follow
> > > > > > > > >
> > > > > > > > > ---
> > > > > > >
> > > a/hadoop/mesos/src/java/org/apache/hadoop/mapred/MesosScheduler.java
> > > > > > > > > +++
> > > > > > >
> > > b/hadoop/mesos/src/java/org/apache/hadoop/mapred/MesosScheduler.java
> > > > > > > > > @@ -224,13 +224,14 @@ public class MesosScheduler extends
> > > > > > TaskScheduler
> > > > > > > > > implements Scheduler {
> > > > > > > > >      // Let the underlying task scheduler do the actual
> task
> > > > > > > scheduling.
> > > > > > > > >      List<Task> tasks =
> > taskScheduler.assignTasks(taskTracker);
> > > > > > > > >
> > > > > > > > > -    // Keep track of which TaskTracker contains which
> tasks.
> > > > > > > > > -    for (Task task : tasks) {
> > > > > > > > > -      LOG.info("Assigning task : " + task.getTaskID()
> > > > > > > > > -          + " to tracker " + tracker);
> > > > > > > > > -
> > > > >  mesosTrackers.get(tracker).hadoopTasks.add(task.getTaskID());
> > > > > > > > > +    if(task != null)  {
> > > > > > > > > +    // Keep track of whenich TaskTracker contains which
> > tasks.
> > > > > > > > > +        for (Task TASK_LOSTTRACKER_JVM_HEAP : tasks) {
> > > > > > > > > +            LOG.info("Assigning task : " +
> task.getTaskID()
> > > > > > > > > +            + " to tracker " + tracker);
> > > > > > > > > +
> > > > > > > >
>  mesosTrackers.get(tracker).hadoopTasks.add(task.getTaskID());
> > > > > > > > > +        }
> > > > > > > > >      }
> > > > > > > > > -
> > > > > > > > >      return tasks;
> > > > > > > > >    }
> > > > > > > > >
> > > > > > > > > Does anybody can help me to identify this bug?
> > > > > > > > > Thanks a lot.
> > > > > > > > >
> > > > > > > > > Guodong
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>

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