I had a similar problem with Poolman. Turns out the version of mysql we
were using didn't support Transaction Isolation Levels (see your error
message). I switched to 3.23.46 and all was well. Also, mm.mysql-2.0.9
is now available from sourceforge. This may help clear up some or most
other bugs. Read the release notes for more info.

[EMAIL PROTECTED] wrote:
> 
> Hi,
> 
> I have had the experience that Struts DataSource "times out" frequently. I
> tried to switch to Poolman, but I get the following error in trying out its
> poolman-webapp:
> 
> java.sql.SQLException: SQLException occurred in JDBCPool: java.sql.SQLException:
> Transaction Isolation Levels are not supported.
> params: org.gjt.mm.mysql.Driver, jdbc:mysql://localhost:3306/nda_catalog. Please
> check your username, password and other connectivity info.
> at com.codestudio.util.JDBCPool.create(Unknown Source)
> at com.codestudio.util.ObjectPool.checkOut(Unknown Source)
> at com.codestudio.util.JDBCPool.requestConnection(Unknown Source)
> at com.codestudio.util.SQLManager.requestConnection(Unknown Source)
> at com.codestudio.sql.PoolManDataSource.getConnection(Unknown Source)
> 
> poolman.xml looks like this:
> -----------------------------
> <datasource>
> 
> <!-- ============================== -->
> <!-- Physical Connection Attributes -->
> <!-- ============================== -->
> 
> <!-- Standard JDBC Driver info -->
> 
> <dbname>nda_catalog</dbname>
> <jndiName>jndi-datasource</jndiName>
> <driver>org.gjt.mm.mysql.Driver</driver>
> <url>jdbc:mysql://localhost:3306/nda_catalog</url>
> 
> <username>root</username>
> <password></password>
> 
> <minimumSize>0</minimumSize>
> <maximumSize>10</maximumSize>
> <connectionTimeout>600</connectionTimeout>
> <userTimeout>12</userTimeout>
> <shrinkBy>10</shrinkBy>
> 
> <logFile>/var/applogs/poolman.log</logFile>
> <debugging>false</debugging>
> 
> <!-- Query Cache Attributes-->
> 
> <cacheEnabled>true</cacheEnabled>
> <cacheSize>20</cacheSize>
> <cacheRefreshInterval>120</cacheRefreshInterval>
> 
> </datasource>
> --------------------------------------------------
> 
> Has anyone please help me with this?
> 
> Pranav
> 
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-- 
Peter Kordel
Software Engineer
Zvolve Systems, Inc.
770-551-4528
http://www.zvolve.com

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