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From "Marcel Kornacker (Code Review)" <>
Subject [Impala-ASF-CR] IMPALA-4014: Introduce query-wide execution state.
Date Wed, 31 Aug 2016 01:35:39 GMT
Marcel Kornacker has posted comments on this change.

Change subject: IMPALA-4014: Introduce query-wide execution state.

Patch Set 11:

> From the discussion today:
 > Points agreed on:
 > - Collapse Executors and states, i.e. collapse FragmentInstanceExecutor
 > into FragmentInstanceState, so that responsibilities and boundaries
 > of classes are clear.
 > - QueryExecMgr is still responsible for setting up the QueryState
 > and creating the fragment threads for now. Once the per-query RPC
 > is implemented, the model will change such that QueryExecMgr
 > creates a “query" thread which sets up the QueryState and starts
 > the fragment threads.

Small correction: once we have the per-query rpc we'll still have QEM create the QueryState
and register it before starting the query thread (which then starts the fragment instance

 > Additionally, I'll put out a separate patch with *only* headers
 > that are parallel with the existing headers, so that Lars can use
 > that to work on the per-query RPC.

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Gerrit-MessageType: comment
Gerrit-Change-Id: I892091d6401acb2ea91ccb1623af54c6f9635e6c
Gerrit-PatchSet: 11
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Sailesh Mukil <>
Gerrit-Reviewer: Dan Hecht <>
Gerrit-Reviewer: David Knupp <>
Gerrit-Reviewer: Henry Robinson <>
Gerrit-Reviewer: Lars Volker <>
Gerrit-Reviewer: Marcel Kornacker <>
Gerrit-Reviewer: Matthew Jacobs <>
Gerrit-Reviewer: Sailesh Mukil <>
Gerrit-HasComments: No

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