You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@drill.apache.org by "Kunal Khatua (JIRA)" <ji...@apache.org> on 2017/02/28 07:20:45 UTC

[jira] [Updated] (DRILL-5287) Provide option to skip updates of ephemeral state changes in Zookeeper

     [ https://issues.apache.org/jira/browse/DRILL-5287?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kunal Khatua updated DRILL-5287:
--------------------------------
    Fix Version/s:     (was: 1.10)
                   1.10.0

> Provide option to skip updates of ephemeral state changes in Zookeeper
> ----------------------------------------------------------------------
>
>                 Key: DRILL-5287
>                 URL: https://issues.apache.org/jira/browse/DRILL-5287
>             Project: Apache Drill
>          Issue Type: Bug
>    Affects Versions: 1.9.0
>            Reporter: Padma Penumarthy
>            Assignee: Padma Penumarthy
>             Fix For: 1.10.0
>
>
> We put transient profiles in zookeeper and update state as query progresses and changes states. It is observed that this adds latency of ~45msec for each update in the query execution path. This gets even worse when high number of concurrent queries are in progress. For concurrency=100, the average query response time even for short queries  is 8 sec vs 0.2 sec with these updates disabled. For short lived queries in a high-throughput scenario, it is of no value to update state changes in zookeeper. We need an option to disable these updates for short running operational queries.



--
This message was sent by Atlassian JIRA
(v6.3.15#6346)