From: Mich Talebzadeh <m...@peridale.co.uk<mailto:m...@peridale.co.uk>>
Reply-To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>"
<user@cassandra.apache.org<mailto:user@cassandra.apache.org>>
Date: Wednesday, April 22, 2015 at 3:06 AM
To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>"
<user@cassandra.apache.org<mailto:user@cassandra.apache.org>>
Subject: RE: ROperationTimedOut in selerct count statement in cqlsh
Thanks Umang.
I have 9GB of memory free here out of 24GB
cassandra@rhes564::/apps/cassandra> free
total used free shared buffers cached
Mem: 24675328 14774532 9900796 0 539900 9097992
-/+ buffers/cache: 5136640 19538688
Swap: 24579440 668 24578772
But I am still getting the same error
cqlsh:ase> select count(1) from t;
OperationTimedOut: errors={}, last_host=127.0.0.1
thx
Mich Talebzadeh
http://talebzadehmich.wordpress.com
Author of the books "A Practitioner’s Guide to Upgrading to Sybase ASE 15",
ISBN 978-0-9563693-0-7.
co-author "Sybase Transact SQL Guidelines Best Practices", ISBN
978-0-9759693-0-4
Publications due shortly:
Creating in-memory Data Grid for Trading Systems with Oracle TimesTen and
Coherence Cache
Oracle and Sybase, Concepts and Contrasts, ISBN: 978-0-9563693-1-4, volume one
out shortly
NOTE: The information in this email is proprietary and confidential. This
message is for the designated recipient only, if you are not the intended
recipient, you should destroy it immediately. Any information in this message
shall not be understood as given or endorsed by Peridale Ltd, its subsidiaries
or their employees, unless expressly so stated. It is the responsibility of the
recipient to ensure that this email is virus free, therefore neither Peridale
Ltd, its subsidiaries nor their employees accept any responsibility.
From: Umang Shah [mailto:shahuma...@gmail.com]
Sent: 22 April 2015 10:44
To: user@cassandra.apache.org<mailto:user@cassandra.apache.org>
Subject: Re: ROperationTimedOut in selerct count statement in cqlsh
HI,
It is common problem, if your machine has 4 GB of RAM then you can only
retrieve records about 200000 so you have to increase the RAM of your system to
avoid this problem..
Thanks,
Umang Shah
On Wed, Apr 22, 2015 at 9:34 AM, Mich Talebzadeh
<m...@peridale.co.uk<mailto:m...@peridale.co.uk>> wrote:
Hi,
I have a table of 300,000 rows.
When I try to do a simple
cqlsh:ase> select count(1) from t;
OperationTimedOut: errors={}, last_host=127.0.0.1
Appreciate any feedback
Thanks,
Mich
NOTE: The information in this email is proprietary and confidential. This
message is for the designated recipient only, if you are not the intended
recipient, you should destroy it immediately. Any information in this message
shall not be understood as given or endorsed by Peridale Ltd, its subsidiaries
or their employees, unless expressly so stated. It is the responsibility of the
recipient to ensure that this email is virus free, therefore neither Peridale
Ltd, its subsidiaries nor their employees accept any responsibility.
--
Regards,
Umang Shah
+919886829019
