Mailing-List: contact commits-help@cassandra.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@cassandra.apache.org
Date: Thu, 11 Aug 2016 06:50:21 +0000 (UTC)
From: "Stefania (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Message-ID: <JIRA.12995474.1470570175000.280287.1470898221675@Atlassian.JIRA>
In-Reply-To: <JIRA.12995474.1470570175000@Atlassian.JIRA>
References: <JIRA.12995474.1470570175000@Atlassian.JIRA> <JIRA.12995474.1470570175658@arcas>
Subject: [jira] [Commented] (CASSANDRA-12403) Slow query detecting
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
archived-at: Thu, 11 Aug 2016 06:50:24 -0000


    [ https://issues.apache.org/jira/browse/CASSANDRA-12403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15416652#comment-15416652 ] 

Stefania commented on CASSANDRA-12403:
--------------------------------------

Thank you for confirming the suggested implementation.

There were some failures with the tests, mostly unrelated except for [one failure|http://cassci.datastax.com/view/Dev/view/stef1927/job/stef1927-12403-dtest/lastCompletedBuild/testReport/cql_tests/SlowQueryTester/local_query_test/] with the new tests. I've fixed the failing test and launched a repeated execution (150 times) [here|http://cassci.datastax.com/view/Dev/view/stef1927/job/stef1927-dtest-multiplex/]. I've also launched the full tests a second time to shake off some of the unrelated failures.

Before committing the patch, I would also like to a have one more person look at it, cc [~JoshuaMcKenzie].


> Slow query detecting
> --------------------
>
>                 Key: CASSANDRA-12403
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12403
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Shogo Hoshii
>            Assignee: Shogo Hoshii
>         Attachments: sample.log, slow_query.patch, slow_query.patch
>
>
> Hello,
> In cassandra production environment, users sometimes build anti-pattern tables and throw queries in inefficient manners.
> So I would like to suggest a feature that enables to log slow query.
> The feature can help cassandra operators to identify bad query patterns.
> Then operators can give advices about queries and data model to users who don't know cassandra so much.
> This ticket is related to CASSANDRA-6226, and I focus on detecting bad query patterns, not aborting them.


--
This message was sent by Atlassian JIRA
(v6.3.4#6332)