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From Steve Loughran <ste...@hortonworks.com>
Subject Re: Re-swizzle 2.3
Date Fri, 07 Feb 2014 18:14:01 GMT
On 6 February 2014 17:07, Alejandro Abdelnur <tucu@cloudera.com> wrote:

> Thanks Robert,
>
> All,
>
>
>
> I'm inclined to revert them from branch-2 as well.
>
>
-1 to that; if there are issues we should be able to find and fix them soon
enough. Even if you aren't doing long-lived YARN services yet, even llama
benefits from this zero-container-loss on AM restart.

We do have Hoya using this (introspection code because the protobuf
structures are hidden away), means that you can kill the AM and HBase &
Accumulo clusters stay up in their YARN containers, the restarted AM gets
that list of containers (and any pending events), rebuilds its data
structures and carries on as before. Sweet!

https://github.com/hortonworks/hoya/blob/develop/hoya-core/src/main/java/org/apache/hoya/yarn/appmaster/HoyaAppMaster.java#L551

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