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https://issues.apache.org/jira/browse/CASSANDRA-5268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13611940#comment-13611940
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Jonathan Ellis commented on CASSANDRA-5268:
-------------------------------------------

There is a getCompactionThroughput method on the StorageService mbean, same 
place the set method is.  We don't make a habit out of logging "I just did X" 
when you request X, it would be rather noisy.
                
> nodetool setcompactionthroughput has no effect
> ----------------------------------------------
>
>                 Key: CASSANDRA-5268
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5268
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 1.1.10
>         Environment: Linux gravity-jasmapp-1 3.2.0-0.bpo.4-amd64 #1 SMP 
> Debian 3.2.32-1~bpo60+1 x86_64 GNU/Linux,
> java version "1.7.0_07"
>            Reporter: Pas
>
> issuing a nodetool setcompactionthroughput 64 has no effect (not even a line 
> in the log), and compactions go merrily about ~20MB/s on an SSD with fairly 
> low utilization (iostat -xm 1 shows ~30-60% util, probably due to reads and 
> other processes on the host)
> Token            : Token(bytes[3030])
> Gossip active    : true
> Thrift active    : true
> Load             : 106 GB
> Generation No    : 1361216406
> Uptime (seconds) : 13825
> Heap Memory (MB) : 2829.19 / 9158.88
> Data Center      : datacenter1
> Rack             : rack1
> Exceptions       : 0
> Key Cache        : size 104857584 (bytes), capacity 104857584 (bytes), 
> 20638124 hits, 20948679 requests, 0.985 recent hit rate, 14400 save period in 
> seconds
> Row Cache        : size 0 (bytes), capacity 0 (bytes), 0 hits, 0 requests, 
> NaN recent hit rate, 0 save period in seconds

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