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From "Rick Whitesel (rwhitese)" <rwhit...@cisco.com>
Subject Update of column sometimes takes 10 seconds
Date Mon, 26 Sep 2011 18:55:28 GMT
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

 

 

 

 

Rick Whitesel
Technical Lead
Customer Contact Business Unit

rwhitese@cisco.com <mailto: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 <http://www.cisco.com/> 

 

 


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