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From Aleksey Yeschenko <alek...@yeschenko.com>
Subject Re: Very slow inserts
Date Tue, 05 Mar 2013 13:46:10 GMT
cqlsh COPY is not designed for inserting millions of rows fast.
If you need to do that, you should write your own tool, maybe in Java (and batch your inserts).


-- 
AY


On Tuesday, March 5, 2013 at 16:38 PM, Pushkar Prasad wrote:

> Hi,
> 
> 
> I'm using Cassandra 1.2.1, and I am using COPY command to insert millions of
> rows. Each row is 100 bytes long. The issue is that the insertion happens
> rather slowly, at rate of 1500 rows per second. We have 3 node cluster with
> 50 GB disk space each, and 4 GB RAM each. Cassandra process is running with
> max heap size of 1 GB. We are storing commit logs and data files on the same
> disk. What could be the cause of this behaviour? Any help would be
> appreciated.
> 
> 
> Thanks
> 
> Pushkar 


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