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From Henry Robinson <he...@cloudera.com>
Subject Re: Request for feedback: IMPALA-2550 Introduce query-wide execution context.
Date Wed, 20 Jul 2016 17:15:15 GMT
Could you say something about the use cases you're trying to address?
That'll make it easier to review the design.

On 20 July 2016 at 10:08, Lars Volker <lv@cloudera.com> wrote:

> Hi all,
>
> I started drafting a header file for a query-wide QueryExecState class
> here: https://gerrit.cloudera.org/#/c/3686/2
>
> It's not much and I couldn't figure out how much of the overall changes
> needed for RPC batching should be included in this change. Most notably we
> might want to replace FragmentExecState in FragmentMgr (now QueryExecMgr)
> with QueryExecState altogether and drive execution from that class. On the
> other hand keeping the QueryExecState as simple as possible for now would
> make the change less intrusive.
>
> I'd be glad for feedback on this first draft.
>
> Thanks, Lars
>



-- 
Henry Robinson
Software Engineer
Cloudera
415-994-6679

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