500
> To: "user@cassandra.apache.org"
> Cc: "aa...@thelastpickle.com"
> Subject: Re: Lots and Lots of CompactionReducer Threads
>
> With the exception of a few little warnings on start-up about the Memtable
> live ratio, there is nothing at WARN or above in the logs.
ache.org>>
Cc: "aa...@thelastpickle.com<mailto:aa...@thelastpickle.com>"
mailto:aa...@thelastpickle.com>>
Subject: Re: Lots and Lots of CompactionReducer Threads
With the exception of a few little warnings on start-up about the Memtable live
ratio, there is nothing at WARN or above in
assandra.apache.org<mailto:user@cassandra.apache.org>"
mailto:user@cassandra.apache.org>>
Date: Sun, 8 Jan 2012 16:51:50 -0500
To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>"
mailto:user@cassandra.apache.org>>
Subject: Re: Lots and Lots of
How many threads ? Any errors in the server logs ?
What does noodtool tpstats and nodetool compactionstats say ?
Did you change compaction_strategy for the CF's ?
By default cassandra will use as many compaction threads as you have cores, see
concurrent_compactors in cassandra.yaml
Have you
