Below is some findings from my recently run of JACC
(https://builds.apache.org/job/Hadoop-2.9-JACC/12/artifact/target/compat-check/report.html)
job against 2.9 and 2.8.2. I have discussed with Arun and Subru offline on
jdiff report who convinced me some of items are not a big concern. Just tried
to list here in case people in community have different voices:
My original concerns of incompatibilities:
1. It looks like we change from log4j to sel4j (HADOOP-12956) in 2.9 which
is a huge incompatible change. Do we have consensus on this in community - as I
saw HBase community are deny this kind of change in minor release? I talked
with several other guys who seems to have different opinion.
2. Some APIs (deprecated in 2.8) get removed. My understanding is we only
remove deprecated API in next major release (3.0) but not minor release. - Arun
and Subru convinced me that removed 2 methods are not supposed to be used by
other downstream projects
3. Some stable APIs get removed, like: YarnScheduler.allocate(), etc. We
may need to add it back for compatibility of Scheduler API.
Thoughts?
Thanks,
Junping
________________________________________
From: Arun Suresh <asur...@apache.org>
Sent: Thursday, November 2, 2017 11:55 PM
To: 俊平堵
Cc: Arun Suresh; su...@apache.org; common-...@hadoop.apache.org;
yarn-dev@hadoop.apache.org; hdfs-...@hadoop.apache.org;
mapreduce-...@hadoop.apache.org
Subject: Re: Cutting branch-2.9
Quick update folks.
We just cut branch-2.9.0, and set the mvn version to 2.9.0
We've also updated the version on branch-2.9 to 2.9.1-SNAPSHOT.
Expect an RC in the next 24 hrs :)
Cheers
-Arun/Subru
On Tue, Oct 31, 2017 at 5:24 PM, Arun Suresh <arun.sur...@gmail.com> wrote:
> Hi Junping,
>
> > In the mean time, branch-2.9 should be reserved for next 2.9 point
> release (2.9.1) and branch-2 should be reserved for next minor release
> (2.10.0 or whatever name it is). Thoughts?
> Yup, That is the current plan. We've updated mvn versions in branch-2 to
> point to 2.10.0-SNAPSHOT.
> Once we cut branch-2.9.0, we will update mvn versions on branch-2.9.0 to
> 2.9.0 and set versions on branch-2.9 to 2.9.1-SNAPSHOT (We plan to do that
> by Thursday)
>
> Cheers
> -Arun
>
> On Tue, Oct 31, 2017 at 2:35 PM, 俊平堵 <dujunp...@gmail.com> wrote:
>
>> Hi Arun/Subru,
>> Thanks for updating on 2.9.0 release progress. A quick question here:
>> are we planning to release from branch-2.9 directly?
>> I doubt this as it seems against our current branch release practice (
>> https://wiki.apache.org/hadoop/HowToRelease#Branching). To get rid of
>> any confusion, I would suggest to cut-off branch-2.9.0 for 2.9.0 release
>> work. In the mean time, branch-2.9 should be reserved for next 2.9 point
>> release (2.9.1) and branch-2 should be reserved for next minor release
>> (2.10.0 or whatever name it is). Thoughts?
>>
>> bq. @Junping, lets move the jdiff conversation to separate thread.
>> Sure. I will reply jdiff in separated thread.
>>
>> Thanks,
>>
>> Junping
>>
>> 2017-10-31 13:44 GMT-07:00 Arun Suresh <asur...@apache.org>:
>>
>>> Hello folks
>>>
>>> We just cut branch-2.9 since all the critical/blocker issues are now
>>> resolved.
>>> We plan to perform some sanity checks for the rest of the week and cut
>>> branch-2.9.0 and push out an RC0 by the end of the week.
>>>
>>> Kindly refrain from committing to branch-2.9 without giving us a heads
>>> up.
>>>
>>> @Junping, lets move the jdiff conversation to separate thread.
>>>
>>> Cheers
>>> -Arun/Subru
>>>
>>> On Mon, Oct 30, 2017 at 12:39 PM, Subru Krishnan <su...@apache.org>
>>> wrote:
>>>
>>> > We want to give heads up that we are going to cut branch-2.9 tomorrow
>>> > morning.
>>> >
>>> > We are down to 3 blockers and they all are close to being committed
>>> > (thanks everyone):
>>> > https://cwiki.apache.org/confluence/display/HADOOP/Hadoop+2.9+Release
>>> >
>>> > There are 4 other non-blocker JIRAs that are targeted for 2.9.0 which
>>> are
>>> > close to completion.
>>> >
>>> > Folks who are working/reviewing these, kindly prioritize accordingly so
>>> > that we can make the release on time.
>>> > https://issues.apache.org/jira/browse/YARN-7398?filter=12342468
>>> >
>>> > Thanks in advance!
>>> >
>>> > -Subru/Arun
>>> >
>>> >
>>> >
>>>
>>
>>
>
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