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From Jonathan Ellis <>
Subject Re: requests should be disabled when doing compaction?
Date Thu, 08 Sep 2011 19:40:44 GMT
(1) You should plan enough capacity that you can handle normal
compaction load while serving requests
(1a) You can control how aggressive compaction is using the
compaction_throughput_mb_per_sec setting

(2) It is not recommended to force compaction of everything using
nodetool compact

On Thu, Sep 8, 2011 at 2:34 PM, Yang <> wrote:
> I did a nodetool compact while the Cassandra server was serving
> requests, it almost never finishes, and the service latency becomes
> very long
> then I terminated the traffic,  compaction finishes shortly after.
> should I disable client requests to a node being compacted while I
> carry out the compaction?
> Thanks
> Yang

Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support

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