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From Jeesoo Shin <>
Subject slow read
Date Mon, 05 Mar 2012 06:55:30 GMT
Hi all.

I have very SLOW READ here. :-(
I made a cluster with three node (aws xlarge, replication = 3)
Cassandra version is 1.0.6
I have inserted 1,000,000 rows. (standard column)
Each row has 200 columns.
Each column has 16 byte key,  512 byte value.

I used Hector createSliceQuery to get one column in a row.
This basic query(random row, fixed column) is created with multiple
thread and hit cassandra.

I only get up to 140 request per second. Is this all I can get for read?
Or am I doing something wrong?
Interestingly, when I request rows which doesn't exist, it goes up to
1600 per second.

ANY insight, share will be extremely helpful.
Thank you.


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