Zhijie Shen commented on YARN-2032:

[~stack], it's great to hear. Once HBase 1.0 comes out, we can think of 
upgrading our dependency.

So far, I only see that HTTPServer and FSDataOutputStream.sync are two points 
of binary incompatibility against Hadoop trunk. It doesn't break compilation, 
but at runtime of the test cases, MiniHBaseCluster fails to start due to these 
two incompatible parts (see HADOOP-10995 for more details).

> Implement a scalable, available TimelineStore using HBase
> ---------------------------------------------------------
>                 Key: YARN-2032
>                 URL: https://issues.apache.org/jira/browse/YARN-2032
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Li Lu
>         Attachments: YARN-2032-091114.patch, YARN-2032-branch-2-1.patch, 
> YARN-2032-branch2-2.patch
> As discussed on YARN-1530, we should pursue implementing a scalable, 
> available Timeline store using HBase.
> One goal is to reuse most of the code from the levelDB Based store - 
> YARN-1635.

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