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From "Shogo Hoshii (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-12403) Slow query detecting
Date Sun, 07 Aug 2016 23:26:20 GMT


Shogo Hoshii commented on CASSANDRA-12403:

Hello [~ifesdjeen]

I appreciate your advice.
It is very useful in the case cassandra operator can access logs in client server.
But I cannot do that because in my company my team(operators) has a lot of users from different
departments and operators do not have permission to client servers.
And it is also difficult for my team to let all of users to use specific driver because the
organisations are separated.
(I guess some of other cassandra operators are in same circumstance as my team is.)
So I would like to say we need to log slow query in server side.

> Slow query detecting
> --------------------
>                 Key: CASSANDRA-12403
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Shogo Hoshii
>            Assignee: Shogo Hoshii
>         Attachments: sample.log, 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.

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