hadoop-mapreduce-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Vinod Kumar Vavilapalli <vino...@apache.org>
Subject Re: Re-swizzle 2.3
Date Fri, 07 Feb 2014 02:27:18 GMT
Hey

I am not against removing them from 2.3 if that is helpful for progress. But I want to understand
what the issues are before we make that decision.

There is the issue with unmanaged AM that is clearly known and I was thinking of coming to
the past two days, but couldn't. What is this new issue that we (confidently?) pinned down
to YARN-1490?

Thanks
+Vinod

On Feb 6, 2014, at 5:07 PM, Alejandro Abdelnur <tucu@cloudera.com> wrote:

> Thanks Robert,
> 
> All,
> 
> So it seems that YARN-1493 and YARN-1490 are introducing serious
> regressions.
> 
> I would propose to revert them and the follow up JIRAs from the 2.3 branch
> and keep working on them on trunk/branch-2 until the are stable (I would
> even prefer reverting them from branch-2 not to block a 2.4 if they are not
> ready in time).
> 
> As I've mentioned before, the list of JIRAs to revert were:
> 
> YARN-1493
> YARN-1490
> YARN-1166
> YARN-1041
> YARN-1566
> 
> Plus 2 additional JIRAs committed since my email on this issue 2 days ago:
> 
> *YARN-1661
> *YARN-1689 (not sure if this JIRA is related in functionality to the
> previous ones but it is creating conflicts).
> 
> I think we should hold on continuing work on top of something that is
> broken until the broken stuff is fixed.
> 
> Quoting Arun, "Committers - Henceforth, please use extreme caution while
> committing to branch-2.3. Please commit *only* blockers to 2.3."
> 
> YARN-1661 & YARN-1689 are not blockers.
> 
> Unless there are objections, I'll revert all these JIRAs from branch-2.3
> tomorrow around noon and I'll update fixedVersion in the JIRAs.
> 
> I'm inclined to revert them from branch-2 as well.
> 
> Thoughts?
> 
> Thanks.
> 
> 
> On Thu, Feb 6, 2014 at 3:54 PM, Robert Kanter <rkanter@cloudera.com> wrote:
> 
>> I think we should revert YARN-1490 from Hadoop 2.3 branch.  I think it was
>> causing some strange behavior in the Oozie unit tests:
>> 
>> Basically, we use a single MiniMRCluster and MiniDFSCluster across all unit
>> tests in a module.  With YARN-1490 we saw that, regardless of test order,
>> the last few tests would timeout waiting for an MR job to finish; on slower
>> machines, the entire test suite would timeout.  Through some digging, I
>> found that we were getting a ton of "Connection refused" Exceptions on
>> LeaseRenewer talking to the NN and a few on the AM talking to the RM.
>> 
>> After a bunch of investigation, I found that the problem went away once
>> YARN-1490 was removed.  Though I couldn't figure out the exact problem.
>> Even though this occurred in unit tests, it does make me concerned that it
>> could indicate some bigger issue in a long-running real cluster (where
>> everything isn't running on the same machine) that we haven't seen yet.
>> 
>> 
>> 
>> On Thu, Feb 6, 2014 at 3:06 PM, Karthik Kambatla <kasha@cloudera.com>
>> wrote:
>> 
>>> I have marked MAPREDUCE-5744 a blocker for 2.3. Committing it shortly.
>> Will
>>> pull it out of branch-2.3 if anyone objects.
>>> 
>>> 
>>> On Thu, Feb 6, 2014 at 2:04 PM, Arpit Agarwal <aagarwal@hortonworks.com
>>>> wrote:
>>> 
>>>> Merged HADOOP-10273 to branch-2.3 as r1565456.
>>>> 
>>>> 
>>>> On Wed, Feb 5, 2014 at 4:49 PM, Arpit Agarwal <
>> aagarwal@hortonworks.com
>>>>> wrote:
>>>> 
>>>>> IMO HADOOP-10273 (Fix 'mvn site') should be included in 2.3.
>>>>> 
>>>>> I will merge it to branch-2.3 tomorrow PST if no one disagrees.
>>>>> 
>>>>> 
>>>>> On Tue, Feb 4, 2014 at 5:03 PM, Alejandro Abdelnur <
>> tucu@cloudera.com
>>>>> wrote:
>>>>> 
>>>>>> IMO YARN-1577 is a blocker, it is breaking unmanaged AMs in a very
>> odd
>>>>>> ways
>>>>>> (to the point it seems un-deterministic).
>>>>>> 
>>>>>> I'd say eiher YARN-1577 is fixed or we revert
>>>>>> YARN-1493/YARN-1490/YARN-1166/YARN-1041/YARN-1566 (almost clean
>>> reverts)
>>>>>> from Hadoop 2.3 branch before doing the release.
>>>>>> 
>>>>>> 
>>>>>> I've verified that after reverting those JIRAs things work fine with
>>>>>> unmanaged AMs.
>>>>>> 
>>>>>> Thanks.
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> On Tue, Feb 4, 2014 at 11:45 AM, Arun C Murthy <acm@hortonworks.com
>>> 
>>>>>> wrote:
>>>>>> 
>>>>>>> I punted YARN-1444 to 2.4 since it's a long-standing issue.
>>>>>>> 
>>>>>>> Jian is away and I don't see YARN-1577 & YARN-1206 making
much
>>>> progress
>>>>>>> till he is back; so I'm inclined to push both to 2.4 too. Any
>>>>>> objections?
>>>>>>> 
>>>>>>> Looks like Daryn has both HADOOP-10301 & HDFS-4564 covered.
>>>>>>> 
>>>>>>> Overall, I'll try get this out in next couple of days if we can
>>> clear
>>>>>> the
>>>>>>> list.
>>>>>>> 
>>>>>>> thanks,
>>>>>>> Arun
>>>>>>> 
>>>>>>> On Feb 3, 2014, at 12:14 PM, Arun C Murthy <acm@hortonworks.com>
>>>> wrote:
>>>>>>> 
>>>>>>>> An update. Per https://s.apache.org/hadoop-2.3.0-blockers
we
>> are
>>>> now
>>>>>>> down to 5 blockers: 1 Common, 1 HDFS, 3 YARN.
>>>>>>>> 
>>>>>>>> Daryn (thanks!) has both the non-YARN covered. Vinod is helping
>>> out
>>>>>> with
>>>>>>> the YARN ones.
>>>>>>>> 
>>>>>>>> thanks,
>>>>>>>> Arun
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>> 
>>>>>>> --
>>>>>>> Arun C. Murthy
>>>>>>> Hortonworks Inc.
>>>>>>> http://hortonworks.com/
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> --
>>>>>>> CONFIDENTIALITY NOTICE
>>>>>>> NOTICE: This message is intended for the use of the individual
or
>>>>>> entity to
>>>>>>> which it is addressed and may contain information that is
>>>> confidential,
>>>>>>> privileged and exempt from disclosure under applicable law. If
the
>>>>>> reader
>>>>>>> of this message is not the intended recipient, you are hereby
>>> notified
>>>>>> that
>>>>>>> any printing, copying, dissemination, distribution, disclosure
or
>>>>>>> forwarding of this communication is strictly prohibited. If you
>> have
>>>>>>> received this communication in error, please contact the sender
>>>>>> immediately
>>>>>>> and delete it from your system. Thank You.
>>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> --
>>>>>> Alejandro
>>>>>> 
>>>>> 
>>>>> 
>>>> 
>>>> --
>>>> CONFIDENTIALITY NOTICE
>>>> NOTICE: This message is intended for the use of the individual or
>> entity
>>> to
>>>> which it is addressed and may contain information that is confidential,
>>>> privileged and exempt from disclosure under applicable law. If the
>> reader
>>>> of this message is not the intended recipient, you are hereby notified
>>> that
>>>> any printing, copying, dissemination, distribution, disclosure or
>>>> forwarding of this communication is strictly prohibited. If you have
>>>> received this communication in error, please contact the sender
>>> immediately
>>>> and delete it from your system. Thank You.
>>>> 
>>> 
>> 
> 
> 
> 
> -- 
> Alejandro


-- 
CONFIDENTIALITY NOTICE
NOTICE: This message is intended for the use of the individual or entity to 
which it is addressed and may contain information that is confidential, 
privileged and exempt from disclosure under applicable law. If the reader 
of this message is not the intended recipient, you are hereby notified that 
any printing, copying, dissemination, distribution, disclosure or 
forwarding of this communication is strictly prohibited. If you have 
received this communication in error, please contact the sender immediately 
and delete it from your system. Thank You.

Mime
View raw message