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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Update of column sometimes takes 10 seconds
Date Mon, 26 Sep 2011 19:33:49 GMT
Sounds a lot like this to me:
http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Updates-lost-td6739612.html

On Mon, Sep 26, 2011 at 1:55 PM, Rick Whitesel (rwhitese) <
rwhitese@cisco.com> wrote:

> Hi All:****
>
> ** **
>
> We have a simple junit test that inserts a column, immediately updates that
> column and then validates that the data updated. Cassandra is run embedded
> in the unit test. Sometimes the test will pass, i.e. the updated data is
> correct, and sometimes the test will fail. The configuration is set to:***
> *
>
> ** **
>
> <CommitLogSync>periodic</CommitLogSync> and
> <CommitLogSyncPeriodInMS>10000</CommitLogSyncPeriodInMS>****
>
> ** **
>
> We are running version 0.6.9. We plan to update to the latest version but
> cannot until after the release we are wrapping up. We are using the client
> batch mutate to create and update the data. From what I understand, the
> commit log write will return immediately and the data will be store in
> memory. If that is the case, then why would our test sometimes fail?****
>
> ** **
>
> -Rick Whitesel****
>
> ** **
>
>  ****
>
> *Simplify, Standardize and Conserve*****
>
> ** **
>
> ** **
>
> [image: cid:01608604-FE45-42D2-AACA-4C66FCE5AB8C@cisco.com]****
>
> ** **
>
> *Rick Whitesel*
> *Technical Lead*
> *Customer Contact Business Unit**
> *
> rwhitese@cisco.com <nordberg@cisco.com>
> Phone :*978-936-0479*****
>
>
> 500 Beaver Brook Road
> Boxboro, MA 01719
> Mailing address:
> 1414 Massachusetts Avenue
> Boxboro, MA 01719
> United States
> www.cisco.com****
>
> ** **
>
> ** **
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support
http://www.datastax.com

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