cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jonathan Ellis (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-5306) Improve Dsnitch Severity
Date Sat, 23 Mar 2013 04:39:19 GMT


Jonathan Ellis commented on CASSANDRA-5306:

I'd be happy with just iowait, to be honest, which can be easily read from /proc.  That would
be a big improvement on the existing heuristic; Windows can fall back to compaction throughput.

The current heuristic of "percentage of my space that I'm currently compacting" is only really
useful for distinguishing "compacting" from "not compacting;" whether it will give a useful
comparison between two different nodes otherwise is essentially random.
> Improve Dsnitch Severity
> ------------------------
>                 Key: CASSANDRA-5306
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Vijay
>            Assignee: Vijay
>            Priority: Minor
>             Fix For: 1.2.4
> This ticket is to continue the discussion in CASSANDRA-5255.
> Currently Dsnitch reports the Severity by calculating the amount of data compacting relative
to load of the node. 
> It will be nice to report Severity as a factor of load average, N/W Throughput and IO
Wait instead.
> seem to have it (But personally i have not used

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see:

View raw message