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https://issues.apache.org/jira/browse/CASSANDRA-9683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14612053#comment-14612053
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Loic Lambiel commented on CASSANDRA-9683:
-----------------------------------------

I've attached the schema and cfstats so you could have a better idea.

I didn't had the opportunity yet to test it on a single node config.

FYI our config is logs on SSD and data on 8* JBOD SATA disks. This cluster 
serves our S3 compatible object storage (http://pithos.io).



> Get mucher higher load and latencies after upgrading from 2.1.6 to cassandra 
> 2.1.7
> ----------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-9683
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9683
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: Ubuntu 12.04 (3.13 Kernel) * 3
> JDK: Oracle JDK 7
> RAM: 32GB
> Cores 4 (+4 HT)
>            Reporter: Loic Lambiel
>            Assignee: Ariel Weisberg
>             Fix For: 2.1.x
>
>         Attachments: cassandra.yaml, cfstats.txt, os_load.png, 
> pending_compactions.png, read_latency.png, schema.txt, system.log, 
> write_latency.png
>
>
> After upgrading our cassandra staging cluster version from 2.1.6 to 2.1.7, 
> the average load grows from 0.1-0.3 to 1.8.
> Latencies did increase as well.
> We see an increase of pending compactions, probably due to CASSANDRA-9592.
> This cluster has almost no workload (staging environment)



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