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https://issues.apache.org/jira/browse/DRILL-4286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16141846#comment-16141846
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ASF GitHub Bot commented on DRILL-4286:
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GitHub user dvjyothsna opened a pull request:
https://github.com/apache/drill/pull/921
DRILL-4286 Graceful shutdown of drillbit
Following is the design document
https://docs.google.com/document/d/1AauIwVCjsBKBSbbU6sQODErrEp7n3IwniMtgK4m09MQ/edit#heading=h.224lbmcaxu2d.
I will be doing minor modifications and adding more tests for a couple of
days.
PCAP_SUB_SCAN in UserBitShared.proto is missing. I have added that since I
made some changes to protobuf and generated code. Once it is added as part of
DRILL-5432 I will remove it from my commit.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dvjyothsna/drill DRILL-4286
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/drill/pull/921.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #921
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commit 9968d60da1c5c75dda3162f5913968f05a378366
Author: dvjyothsna <jyothsnadonapati@skatkam-598.local>
Date: 2017-08-24T15:58:00Z
DRILL-4286 Graceful shutdown of drillbit
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> Have an ability to put server in quiescent mode of operation
> ------------------------------------------------------------
>
> Key: DRILL-4286
> URL: https://issues.apache.org/jira/browse/DRILL-4286
> Project: Apache Drill
> Issue Type: New Feature
> Components: Execution - Flow
> Reporter: Victoria Markman
> Assignee: Venkata Jyothsna Donapati
>
> I think drill will benefit from mode of operation that is called "quiescent"
> in some databases.
> From IBM Informix server documentation:
> {code}
> Change gracefully from online to quiescent mode
> Take the database server gracefully from online mode to quiescent mode to
> restrict access to the database server without interrupting current
> processing. After you perform this task, the database server sets a flag that
> prevents new sessions from gaining access to the database server. The current
> sessions are allowed to finish processing. After you initiate the mode
> change, it cannot be canceled. During the mode change from online to
> quiescent, the database server is considered to be in Shutdown mode.
> {code}
> This is different from shutdown, when processes are terminated.
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