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MapReduce >> mail # dev >> Re: [VOTE] Release hadoop-2.0.3-alpha


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Re: [VOTE] Release hadoop-2.0.3-alpha
+1 (binding)

I downloaded the src tar ball, built it with the native bits enabled,
started up a little cluster, and ran some sample jobs. Things worked as
expected. I also verified the signatures on the source artifact.

I did bump into one little issue, but I don't think it should be considered
a blocker. When I first tried to start up the RM, it failed to start with
this error:

13/02/08 16:00:31 FATAL resourcemanager.ResourceManager: Error starting
ResourceManager
java.lang.IllegalStateException: Queue configuration missing child queue
names for root
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.parseQueue(CapacityScheduler.java:328)
 at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.initializeQueues(CapacityScheduler.java:255)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.reinitialize(CapacityScheduler.java:220)
 at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.init(ResourceManager.java:226)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:710)

And then this on shutdown:

13/02/08 16:00:31 INFO service.CompositeService: Error stopping
ResourceManager
java.lang.NullPointerException
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.stop(ResourceManager.java:590)
 at
org.apache.hadoop.yarn.service.CompositeService$CompositeServiceShutdownHook.run(CompositeService.java:122)
at
org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:54)

Presumably this is because I don't have the CapacityScheduler queues
configured at all, and the default scheduler is now the CapacityScheduler.
To work around this for my testing, I switched to the FairScheduler and the
RM came up just fine.
--
Aaron T. Myers
Software Engineer, Cloudera
On Wed, Feb 6, 2013 at 7:59 PM, Arun C Murthy <[EMAIL PROTECTED]> wrote:

> Folks,
>
> I've created a release candidate (rc0) for hadoop-2.0.3-alpha that I would
> like to release.
>
> This release contains several major enhancements such as QJM for HDFS HA,
> multi-resource scheduling for YARN, YARN ResourceManager restart etc.
> Also YARN has achieved significant stability at scale (more details from
> Y! folks here: http://s.apache.org/VYO).
>
> The RC is available at:
> http://people.apache.org/~acmurthy/hadoop-2.0.3-alpha-rc0/
> The RC tag in svn is here:
> http://svn.apache.org/viewvc/hadoop/common/tags/release-2.0.3-alpha-rc0/
>
> The maven artifacts are available via repository.apache.org.
>
> Please try the release and vote; the vote will run for the usual 7 days.
>
> thanks,
> Arun
>
>
>
> --
> Arun C. Murthy
> Hortonworks Inc.
> http://hortonworks.com/
>
>
>