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Subject: Re: Partition size
To: user@cassandra.apache.org
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From: Mark Thomas <markt@apache.org>
Message-ID: <5cb62627-be02-a8d9-9a2b-6b45f19012ca@apache.org>
Date: Fri, 9 Sep 2016 20:14:03 +0100
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archived-at: Fri, 09 Sep 2016 19:14:19 -0000

On 09/09/2016 16:46, Mark Curtis wrote:
> If your partition sizes are over 100MB iirc then you'll normally see
> warnings in your system.log, this will outline the partition key, at
> least in Cassandra 2.0 and 2.1 as I recall.
> 
> Your best friend here is nodetool cfstats which shows you the
> min/mean/max partition sizes for your table. It's quite often used to
> pinpoint large partitons on nodes in a cluster.
> 
> More info
> here: https://docs.datastax.com/en/cassandra/2.1/cassandra/tools/toolsCFstats.html

Folks,

It is *Apache* Cassandra. If you are going to point to docs, please
point to the official Apache docs unless there is a very good reason not to.

In this case:

http://cassandra.apache.org/doc/latest/configuration/cassandra_config_file.html#compaction_large_partition_warning_threshold_mb

looks to the place.

Mark


> 
> Thanks
> 
> Mark
> 
> 
> On 9 September 2016 at 02:53, Anshu Vajpayee <anshu.vajpayee@gmail.com
> <mailto:anshu.vajpayee@gmail.com>> wrote:
> 
>     Is there any way to get partition size for a  partition key ?
> 
>