Thanks Vinod for the outstanding effort and Naga, Li for the verification work.


I tried to do some diff work between old YARN-2928 branch and YARN-2928-new. I 
noticed that two branches are based on different commits, so in my local 
YARN-2928 branch, I manually cherry pick commits between YARN-3543 and 
HADOOP-12244 (a short list) to make sure two branches are standing at the same 
points.

>From the diff files generated between two branches, I found that most 
>differences are trivial (blank lines, sequence of methods, etc.). However, 
>some test failure like TestRMAppLogAggregationStatus is due to our merge 
>conflict (with YARN-3999) that should be easily fix.


I am still working on checking diffs on hints for more test failures, but would 
like to share with everyone on this branch to watch together in case I miss 
something. If everyone agree, I would like to create a JIRA to put on the raw 
diff patch which is open for discussion, and our goal here is to pick up some 
important pieces of code (not include trivial things) to check-in to 
YARN-2928-new. Thoughts?


BTW, I think TestSystemMetricsPublisherForV2 get NPE failures on both YARN-2928 
and YARN-2928-new which should be fixed separately?


Thanks,


Junping


________________________________
From: Naganarasimha G R (Naga) <[email protected]>
Sent: Friday, August 14, 2015 3:59 PM
To: Li Lu; Vinod Kumar Vavilapalli
Cc: [email protected]; Zhijie Shen; Junping Du; Sangjin Lee; Vrushali 
Channapattan
Subject: RE: YARN-2928 branch reset

Hi Vinod & Lilu,
I checked out the new branch compiled and ran Distributed shell everything 
seems to work fine.
Also ran TestDistributedShell , seems to be running fine and also have the fix 
ready for "TestSystemMetricsPublisherForV2" failure. Shall i raise and apply 
the patch or you have more issues which you want to raise together with it ?

+Naga
________________________________
From: Li Lu [[email protected]]
Sent: Friday, August 14, 2015 03:32
To: Vinod Kumar Vavilapalli
Cc: [email protected]; Zhijie Shen; Junping Du; Sangjin Lee; Vrushali 
Channapattan; Naganarasimha G R (Naga)
Subject: Re: YARN-2928 branch reset

Thanks for the work Vinod!

I've tried the latest YARN-2928-new branch with a manually set up cluster and 
MapReduce jobs. So far it looks good to me. Seems like we've quickly recovered 
to where we stopped on the old YARN-2928 branch (but nothing magically new, of 
course:) ). I'd propose that everybody working on the YARN-2928 branch to try 
this out. In this way if there are any problems we can discover that soon. 
Thanks!

Li Lu

On Aug 13, 2015, at 14:21, Vinod Kumar Vavilapalli 
<[email protected]<mailto:[email protected]>> wrote:

I had quite a bit of trouble with some of the DistributedShell changes, but 
finally done with this.

Created a new branch YARN-2928-new. If you can give it a spin and things look 
okay, I'll swap the branches.

Ran TestDistributedShell fine. There are existing failures with tests like 
TestSystemMetricsPublisherForV2 on the current branch itself, will file tickets 
for their fixes post the branch-swap.

Thanks
+Vinod

On Aug 12, 2015, at 12:54 PM, Vinod Kumar Vavilapalli 
<[email protected]<mailto:[email protected]>> wrote:

Hey all,

I've tried rebasing YARN-2928 upto trunk and realized that we haven't been 
rebasing correctly.

Today, I plan to recreate YARN-2928 branch freshly from trunk. So please hold 
off any commits to the branch till I send an all-clear.

Thanks
+Vinod


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