Re: JDBC : this statement has been closed : postgresql 9

it happens when you access a preparedstatement and the associted
connection is closed. maybe your application was busy/idle for more than
120 seconds. see removeAbandonedTimeout="120"

regards
Thomas


Am 10.11.2010 11:20, schrieb Michael musset:
> Hi,
>
> I'm having a troube in my application :
>
> org.postgresql.util.PSQLException: This statement has been closed.
>          at
> org.postgresql.jdbc2.AbstractJdbc2Statement.checkClosed(AbstractJdbc2Statement.java:2508)
>          at
> org.postgresql.jdbc2.AbstractJdbc2Statement.getMaxRows(AbstractJdbc2Statement.java:595)
>          at
> org.postgresql.jdbc4.Jdbc4Statement.createResultSet(Jdbc4Statement.java:36)
>          at
> org.postgresql.jdbc2.AbstractJdbc2Statement$StatementResultHandler.handleResultRows(AbstractJdbc2Statement.java:211)
>          at
> org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1795)
>          at
> org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)
>          at
> org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)
>          at
> org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)
>          at
> org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)
>          at
> org.apache.commons.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:172)
>          at
> org.apache.commons.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:172)
>
>
> It's happen when I execute my PreparedStatement .
>
>
> Normally it's work well, but in my error log, i found this ....
>
> I'm on ubuntu 10.04 server with a tomcat running.
> i Have multi thread running, but i'm sure that other thread can't interfer
> with that.
>
> And i'm using this :
>
> <Context>
>    <Resource name="jdbc/NexessPool"
>      auth="Container"
>      type="javax.sql.DataSource"
>      maxActive="100"
>      maxIdle="30"
>      maxWait="20000"
>      removeAbandoned="true"
>      removeAbandonedTimeout="120"
>      username="**********"
>      password="*********"
>      driverClassName="org.postgresql.Driver"
>      url="jdbc:postgresql://localhost/database"
>    />
> </Context>
>
>
>
> which JDBC i'm using ? this one :
>
> http://ejurka.com/pgsql/jars/xml/
>
> from Kris Jurka ( thx to him )
>
>
> I don't understand why a preparestatement have been close ?
>
>
>
> thx for your help,
>