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From Vinod Kumar Vavilapalli <vino...@apache.org>
Subject Re: [VOTE] Release Apache Hadoop 2.9.0 (RC0)
Date Thu, 09 Nov 2017 01:34:35 GMT
A related point - I thought I mentioned this in one of the release preparation threads, but
in any case.

Starting 2.7.0, for every .0 release, we've been adding a disclaimer (to the voting thread
as well as the final release) that the first release can potentially go through additional
fixes to incompatible changes (besides stabilization fixes). We should do this with 2.9.0
too.

This has some history - long before this, we tried two different things: (a) downstream projects
consume an RC (b) downstream projects consume a release. Option (a) was tried many times but
it was increasingly getting hard to manage this across all the projects that depend on Hadoop.
When we tried option (b), we used to make .0 as a GA release, but downstream projects like
Tez, Hive, Spark would come back and find an incompatible change - and now we were forced
into a conundrum - is fixing this incompatible change itself an incompatibility? So to avoid
this problem, we've started marking the first few releases as alpha eventually making a stable
point release. Clearly, specific users can still use this in production as long as we the
Hadoop community reserve the right to fix incompatibilities.

Long story short, I'd just add to your voting thread and release notes that 2.9.0 still needs
to be tested downstream and so users may want to wait for subsequent point releases.

Thanks
+Vinod

> On Nov 8, 2017, at 12:43 AM, Subru Krishnan <subru@apache.org> wrote:
> 
> We are canceling the RC due to the issue that Rohith/Sunil identified. The
> issue was difficult to track down as it only happens when you use IP for ZK
> (works fine with host names) and moreover if ZK and RM are co-located on
> same machine. We are hopeful to get the fix in tomorrow and roll out RC1.
> 
> Thanks to everyone for the extensive testing/validation. Hopefully cost to
> replicate with RC1 is much lower.
> 
> -Subru/Arun.
> 
> On Tue, Nov 7, 2017 at 5:27 PM, Konstantinos Karanasos <kkaranasos@gmail.com
>> wrote:
> 
>> +1 from me too.
>> 
>> Did the following:
>> 1) set up a 9-node cluster;
>> 2) ran some Gridmix jobs;
>> 3) ran (2) after enabling opportunistic containers (used a mix of
>> guaranteed and opportunistic containers for each job);
>> 4) ran (3) but this time enabling distributed scheduling of opportunistic
>> containers.
>> 
>> All the above worked with no issues.
>> 
>> Thanks for all the effort guys!
>> 
>> Konstantinos
>> 
>> 
>> 
>> Konstantinos
>> 
>> On Tue, Nov 7, 2017 at 2:56 PM, Eric Badger <ebadger@oath.com.invalid>
>> wrote:
>> 
>>> +1 (non-binding) pending the issue that Sunil/Rohith pointed out
>>> 
>>> - Verified all hashes and checksums
>>> - Built from source on macOS 10.12.6, Java 1.8.0u65
>>> - Deployed a pseudo cluster
>>> - Ran some example jobs
>>> 
>>> Thanks,
>>> 
>>> Eric
>>> 
>>> On Tue, Nov 7, 2017 at 4:03 PM, Wangda Tan <wheeleast@gmail.com> wrote:
>>> 
>>>> Sunil / Rohith,
>>>> 
>>>> Could you check if your configs are same as Jonathan posted configs?
>>>> https://issues.apache.org/jira/browse/YARN-7453?
>>> focusedCommentId=16242693&
>>>> page=com.atlassian.jira.plugin.system.issuetabpanels:
>>>> comment-tabpanel#comment-16242693
>>>> 
>>>> And could you try if using Jonathan's configs can still reproduce the
>>>> issue?
>>>> 
>>>> Thanks,
>>>> Wangda
>>>> 
>>>> 
>>>> On Tue, Nov 7, 2017 at 1:52 PM, Arun Suresh <asuresh@apache.org>
>> wrote:
>>>> 
>>>>> Thanks for testing Rohith and Sunil
>>>>> 
>>>>> Can you please confirm if it is not a config issue at your end ?
>>>>> We (both Jonathan and myself) just tried testing this on a fresh
>>> cluster
>>>>> (both automatic and manual) and we are not able to reproduce this.
>> I've
>>>>> updated the YARN-7453 <https://issues.apache.org/
>> jira/browse/YARN-7453
>>>> 
>>>>> JIRA
>>>>> with details of testing.
>>>>> 
>>>>> Cheers
>>>>> -Arun/Subru
>>>>> 
>>>>> On Tue, Nov 7, 2017 at 3:17 AM, Rohith Sharma K S <
>>>>> rohithsharmaks@apache.org
>>>>>> wrote:
>>>>> 
>>>>>> Thanks Sunil for confirmation. Btw, I have raised YARN-7453
>>>>>> <https://issues.apache.org/jira/browse/YARN-7453> JIRA to track
>> this
>>>>>> issue.
>>>>>> 
>>>>>> - Rohith Sharma K S
>>>>>> 
>>>>>> On 7 November 2017 at 16:44, Sunil G <sunilg@apache.org> wrote:
>>>>>> 
>>>>>>> Hi Subru and Arun.
>>>>>>> 
>>>>>>> Thanks for driving 2.9 release. Great work!
>>>>>>> 
>>>>>>> I installed cluster built from source.
>>>>>>> - Ran few MR jobs with application priority enabled. Runs fine.
>>>>>>> - Accessed new UI and it also seems fine.
>>>>>>> 
>>>>>>> However I am also getting same issue as Rohith reported.
>>>>>>> - Started an HA cluster
>>>>>>> - Pushed RM to standby
>>>>>>> - Pushed back RM to active then seeing an exception.
>>>>>>> 
>>>>>>> org.apache.hadoop.ha.ServiceFailedException: RM could not
>>> transition
>>>> to
>>>>>>> Active
>>>>>>>        at
>>>>>>> org.apache.hadoop.yarn.server.resourcemanager.ActiveStandbyE
>>>>>>> lectorBasedElectorServic
>>>>>>>    e.becomeActive(ActiveStandbyElectorBasedElect
>>> orService.java:146)
>>>>>>>        at
>>>>>>> org.apache.hadoop.ha.ActiveStandbyElector.becomeActive(Activ
>>>>>>> eStandbyElector.java:894
>>>>>>>    )
>>>>>>> 
>>>>>>> Caused by: org.apache.zookeeper.KeeperException$NoAuthException:
>>>>>>> KeeperErrorCode = NoAuth
>>>>>>>        at
>>>>>>> org.apache.zookeeper.KeeperException.create(
>>> KeeperException.java:113)
>>>>>>>        at org.apache.zookeeper.ZooKeeper.multiInternal(
>>>> ZooKeeper.java:
>>>>>>> 949)
>>>>>>> 
>>>>>>> Will check and post more details,
>>>>>>> 
>>>>>>> - Sunil
>>>>>>> 
>>>>>>> 
>>>>>>> On Tue, Nov 7, 2017 at 12:47 PM Rohith Sharma K S <
>>>>>>> rohithsharmaks@apache.org>
>>>>>>> wrote:
>>>>>>> 
>>>>>>>> Thanks Subru/Arun for the great work!
>>>>>>>> 
>>>>>>>> Downloaded source and built from it. Deployed RM HA non-secured
>>>>> cluster
>>>>>>>> along with new YARN UI and ATSv2.
>>>>>>>> 
>>>>>>>> I am facing basic RM HA switch issue after first time successful
>>>>> start.
>>>>>>>> *Can
>>>>>>>> anyone else is facing this issue?*
>>>>>>>> 
>>>>>>>> When RM is switched from ACTIVE to STANDBY to ACTIVE, RM
never
>>>> switch
>>>>> to
>>>>>>>> active successfully. Exception trace I see from the log is
>>>>>>>> 
>>>>>>>> 2017-11-07 12:35:56,540 WARN org.apache.hadoop.ha.
>>>>> ActiveStandbyElector:
>>>>>>>> Exception handling the winning of election
>>>>>>>> org.apache.hadoop.ha.ServiceFailedException: RM could not
>>>> transition
>>>>> to
>>>>>>>> Active
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.yarn.server.resourcemanager.ActiveStandbyE
>>>>>>> lectorBasedElectorService.becomeActive(ActiveStandbyElec
>>>>>>> torBasedElectorService.java:146)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.ha.ActiveStandbyElector.becomeActive(Activ
>>>>>>> eStandbyElector.java:894)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.ha.ActiveStandbyElector.processResult(Acti
>>>>>>> veStandbyElector.java:473)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(
>>>>>>> ClientCnxn.java:599)
>>>>>>>>    at org.apache.zookeeper.ClientCnxn$EventThread.run(
>>> ClientCnxn.
>>>>>>> java:498)
>>>>>>>> Caused by: org.apache.hadoop.ha.ServiceFailedException: Error
>>> when
>>>>>>>> transitioning to Active mode
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.yarn.server.resourcemanager.AdminService.t
>>>>>>> ransitionToActive(AdminService.java:325)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.yarn.server.resourcemanager.ActiveStandbyE
>>>>>>> lectorBasedElectorService.becomeActive(ActiveStandbyElec
>>>>>>> torBasedElectorService.java:144)
>>>>>>>>    ... 4 more
>>>>>>>> Caused by: org.apache.hadoop.service.ServiceStateException:
>>>>>>>> org.apache.zookeeper.KeeperException$NoAuthException:
>>>>> KeeperErrorCode =
>>>>>>>> NoAuth
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.service.ServiceStateException.convert(Serv
>>>>>>> iceStateException.java:105)
>>>>>>>>    at
>>>>>>>> org.apache.hadoop.service.AbstractService.start(AbstractServ
>>>>>>> ice.java:205)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.yarn.server.resourcemanager.ResourceManage
>>>>>>> r.startActiveServices(ResourceManager.java:1131)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.yarn.server.resourcemanager.ResourceManage
>>>>>>> r$1.run(ResourceManager.java:1171)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.yarn.server.resourcemanager.ResourceManage
>>>>>>> r$1.run(ResourceManager.java:1167)
>>>>>>>>    at java.security.AccessController.doPrivileged(Native
>> Method)
>>>>>>>>    at javax.security.auth.Subject.doAs(Subject.java:422)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGro
>>>>>>> upInformation.java:1886)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.yarn.server.resourcemanager.ResourceManage
>>>>>>> r.transitionToActive(ResourceManager.java:1167)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.yarn.server.resourcemanager.AdminService.t
>>>>>>> ransitionToActive(AdminService.java:320)
>>>>>>>>    ... 5 more
>>>>>>>> Caused by: org.apache.zookeeper.KeeperException$
>> NoAuthException:
>>>>>>>> KeeperErrorCode = NoAuth
>>>>>>>>    at
>>>>>>>> org.apache.zookeeper.KeeperException.create(
>>>> KeeperException.java:113)
>>>>>>>>    at org.apache.zookeeper.ZooKeeper.multiInternal(
>>>>> ZooKeeper.java:949)
>>>>>>>>    at org.apache.zookeeper.ZooKeeper.multi(ZooKeeper.java:915)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.curator.framework.imps.CuratorTransactionImpl.doO
>>>>>>> peration(CuratorTransactionImpl.java:159)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.curator.framework.imps.CuratorTransactionImpl.acc
>>>>>>> ess$200(CuratorTransactionImpl.java:44)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.curator.framework.imps.CuratorTransactionImpl$2.c
>>>>>>> all(CuratorTransactionImpl.java:129)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.curator.framework.imps.CuratorTransactionImpl$2.c
>>>>>>> all(CuratorTransactionImpl.java:125)
>>>>>>>>    at org.apache.curator.RetryLoop.
>> callWithRetry(RetryLoop.java:
>>>> 107)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.curator.framework.imps.CuratorTransactionImpl.com
>>>>>>> mit(CuratorTransactionImpl.java:122)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.util.curator.ZKCuratorManager$SafeTransact
>>>>>>> ion.commit(ZKCuratorManager.java:403)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.util.curator.ZKCuratorManager.safeSetData(
>>>>>>> ZKCuratorManager.java:372)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMS
>>>>>>> tateStore.getAndIncrementEpoch(ZKRMStateStore.java:493)
>>>>>>>>    at
>>>>>>>> 
>>>>>>>> org.apache.hadoop.yarn.server.resourcemanager.ResourceManage
>>>>>>> r$RMActiveServices.serviceStart(ResourceManager.java:754)
>>>>>>>>    at
>>>>>>>> org.apache.hadoop.service.AbstractService.start(AbstractServ
>>>>>>> ice.java:194)
>>>>>>>>    ... 13 more
>>>>>>>> 
>>>>>>>> Thanks & Regards
>>>>>>>> Rohith Sharma K S
>>>>>>>> 
>>>>>>>> On 4 November 2017 at 04:20, Arun Suresh <asuresh@apache.org>
>>>> wrote:
>>>>>>>> 
>>>>>>>>> Hi folks,
>>>>>>>>> 
>>>>>>>>>     Apache Hadoop 2.9.0 is the first stable release of
Hadoop
>>> 2.9
>>>>>>> line
>>>>>>>> and
>>>>>>>>> will be the latest stable/production release for Apache
>> Hadoop -
>>>> it
>>>>>>>>> includes 30 New Features with 500+ subtasks, 407 Improvements,
>>> 787
>>>>> Bug
>>>>>>>>> fixes new fixed issues since 2.8.2 .
>>>>>>>>> 
>>>>>>>>>      More information about the 2.9.0 release plan can
be
>> found
>>>>> here:
>>>>>>>>> *https://cwiki.apache.org/confluence/display/HADOOP/
>>>>>>>>> Roadmap#Roadmap-Version2.9
>>>>>>>>> <https://cwiki.apache.org/confluence/display/HADOOP/
>>>>>>>>> Roadmap#Roadmap-Version2.9>*
>>>>>>>>> 
>>>>>>>>>      New RC is available at:
>>>>>>>>> http://home.apache.org/~asuresh/hadoop-2.9.0-RC0/
>>>>>>>>> 
>>>>>>>>>      The RC tag in git is: release-2.9.0-RC0, and the
latest
>>>> commit
>>>>>>> id
>>>>>>>> is:
>>>>>>>>> 6697f0c18b12f1bdb99cbdf81394091f4fef1f0a
>>>>>>>>> 
>>>>>>>>>      The maven artifacts are available via
>>> repository.apache.org
>>>>> at:
>>>>>>>>> *
>>>>>>>> https://repository.apache.org/content/repositories/orgapache
>>>>>>> hadoop-1065/
>>>>>>>>> <
>>>>>>>> https://repository.apache.org/content/repositories/orgapache
>>>>>>> hadoop-1065/
>>>>>>>>>> *
>>>>>>>>> 
>>>>>>>>>      Please try the release and vote; the vote will run
for
>> the
>>>>>>> usual 5
>>>>>>>>> days, ending on 11/10/2017 4pm PST time.
>>>>>>>>> 
>>>>>>>>> Thanks,
>>>>>>>>> 
>>>>>>>>> Arun/Subru
>>>>>>>>> 
>>>>>>>> 
>>>>>>> 
>>>>>> 
>>>>>> 
>>>>> 
>>>> 
>>> 
>> 


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