Yes, but I think that might be a red herring. How many rows do you have in
DUAL?
my (spring) datasource is;
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${database_driver}"
/>
<property name="url" value="${database_url}" />
<property name="username" value="${database_user}" />
<property name="password" value="${database_password}" />
<property name="defaultAutoCommit" value="true"/>
<property name="defaultTransactionIsolation" value="2"/>
<property name="maxActive" value="10"/>
<property name="removeAbandoned" value="true"/>
<property name="removeAbandonedTimeout" value="30"/>
<property name="logAbandoned" value="false"/>
<property name="validationQuery" value="select top 1
DealerCode from Dealer"/>
</bean>
-----Original Message-----
From: Ron H [mailto:be.spec...@gmail.com]
Sent: 18 November 2009 01:24 PM
To: user-java@ibatis.apache.org
Subject: RE: Error calling Connection.setAutoCommit:
thanks
do you use it instead of:
<property name="poolPingQuery" value="select 1 from DUAL" />
<property name="poolPingEnabled" value="true" />
meindert-3 wrote:
>
> Not sure what the difference is, but I'm using the validationQuery
> property
> to check the connection;
> <property name="validationQuery" value=" select top 1 'niks' from DUAL "/>
>
> The second thing I noticed is that 'select 1 from DUAL' will return all
> rows
> in DUAL, shouldn't you use 'select top 1 * from DUAL'
>
> -----Original Message-----
> From: Ron H [mailto:be.spec...@gmail.com]
> Sent: 18 November 2009 11:48 AM
> To: user-java@ibatis.apache.org
> Subject: Error calling Connection.setAutoCommit:
>
>
> hi
> randomly, i get the following exception:
> 18/11/2009 03:18:49 ERROR Connection:19 - Error calling
> Connection.setAutoCommit:
> com.mysql.jdbc.CommunicationsException: Communications link failure due to
> underlying exception:
>
> ** BEGIN NESTED EXCEPTION **
>
> java.io.EOFException
>
> STACKTRACE:
>
> java.io.EOFException
> at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1934)
>
> my configuration file is:
> <environments default="development">
> <environment id="development">
> <transactionManager type="JDBC" />
> <dataSource type="POOLED">
> <property name="driver" value="${driver}" />
> <property name="url" value="${url}" />
> <property name="username"
> value="${username}" />
> <property name="password"
> value="${password}" />
> <property name="poolPingQuery" value="select
> 1 from DUAL" />
> <property name="poolPingEnabled"
> value="true" />
> </dataSource>
> </environment>
> </environments>
> it reopen the connection and things are working. i am just wondering how
> does it happen? how can i prevent it from happening?
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