10 messages in com.mysql.lists.javaRE: Problems faced onm igration from ...
FromSent OnAttachments
pras...@wipro.com13 Jun 2006 09:44 
Christopher G. Stach II13 Jun 2006 19:42 
pras...@wipro.com13 Jun 2006 20:36 
Christopher G. Stach II13 Jun 2006 20:43 
pras...@wipro.com13 Jun 2006 20:51 
Christopher G. Stach II13 Jun 2006 21:04 
pras...@wipro.com13 Jun 2006 21:12 
Christopher G. Stach II13 Jun 2006 21:45 
pras...@wipro.com13 Jun 2006 22:04 
Christopher G. Stach II13 Jun 2006 22:06 
Subject:RE: Problems faced onm igration from myISAM to INNODB
From:pras...@wipro.com (pras@wipro.com)
Date:06/13/2006 09:12:35 PM
List:com.mysql.lists.java

Acually these queries are executed from different transactions. We take two different connections and then execute these two select queries.

I have not tried with SERIALIZABLE option.

-----Original Message----- From: Christopher G. Stach II [mailto:cg@ldsys.net] Sent: Wednesday, June 14, 2006 9:35 AM To: Prasad Ramisetti (WT01 - Broadband Networks) Cc: ja@lists.mysql.com Subject: Re: Problems faced onm igration from myISAM to INNODB

pras@wipro.com wrote:

Actually the first query is returning correct data and the second query is missing out some records. When the execute the same queries from the sql prompt , I get the data correctly.

I have not taken any ISAM dump, but creating data in the INNODB tables

directly.

Actually this is a performance testing I am doing, where I have 10 threads running concurrently inserting 10K rows each and a cron that triggers every five minutes that reads the data and does certain operations.

Do you feel I should check some INNODB configurations for such stress conditions ?

Do both queries happen in the same transaction? Does it happen when you set that transaction's isolation level to SERIALIZABLE?

-- Christopher G. Stach II

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