Hi Bruno,
Bruno CROS wrote:
Hi Armin,
In fact, i looked at the DB connections in the DB console. It was a bad
idea, because connection disappear !! I looked with netstat -a , and i saw
several sockets/connections...
Well, i was experiencing some freezes with these connections with a pool
setup maxActive set to -1. I didn't find any documentation on that value.
Both ConnectionFactoryPooledImpl and ConnectionFactoryDBCPImpl use
commons-pool to manage connections. There you can find details about the
settings
http://jakarta.apache.org/commons/pool/apidocs/index.html
I would recommend to set maxActive connections at most to the maximal
connections provided by your database server.
What i known is that, when i put 0 (no limit), it seems there is no more
freeze.
I think there is a typo in documentation. For unlimited connection pool
you have to set -1.
http://jakarta.apache.org/commons/pool/apidocs/org/apache/commons/pool/impl/GenericObjectPool.html
Will fix this till next release.
In your jdbc-connection-descriptor (posted some time ago) you set
useAutoCommit="0". In this case you have to enable autoCommit 'false' in
your jdbc-driver configuration setup, else you will run into rollback
hassle (if autoCommit is 'true' for connections).
regards,
Armin
Can you ligth up me about that.
Thanks.
Regards.
On 5/5/06, Armin Waibel <[EMAIL PROTECTED]> wrote:
Hi Bruno,
Bruno CROS wrote:
> Hi,
>
> I have a strange behaviour about the second database i use. It seems
that
> using "broker =
> PersistenceBrokerFactory.createPersistenceBroker("rushDb");"
> always return the same broker/connection.
>
> My connection pool is setup as it have to keep 2 idle connections
> available, and it never occured. Still only one.
>
> How can i use several connection in this case?
>
> Note that this database is not not use to update datas. No transaction
are
> used on it.
>
how do you test this behavior? Please setup a test and lookup for two PB
instances at the same time:
broker_A = PersistenceBrokerFactory.createPersistenceBroker("rushDb");
broker_B = PersistenceBrokerFactory.createPersistenceBroker("rushDb");
Are A and B really the same broker instances? If you execute a query on
both broker instances (don't close the broker after it) and then lookup
the Connection from A and B - are the connections the same?
regards,
Armin
>
> Thanks.
>
>
> Here's my connection setup.
>
> <jdbc-connection-descriptor
> jcd-alias="rushDb"
> default-connection="false"
> platform="MsSQLServer"
> jdbc-level="2.0"
> driver="com.microsoft.jdbc.sqlserver.SQLServerDriver"
> protocol="JDBC"
> subprotocol="microsoft:sqlserver"
> dbalias="//xxx.x.x.x:1433"
> username="xxxx"
> password="xxxx"
> batch-mode="true"
> useAutoCommit="0"
> ignoreAutoCommitExceptions="true"
> >
>
> and pool setup :
>
> maxActive="5"
> maxIdle="-1"
> minIdle="2"
> maxWait="5000"
> whenExhaustedAction="2"
>
> validationQuery="SELECT CURRENT_TIMESTAMP"
> testOnBorrow="true"
> testOnReturn="false"
> testWhileIdle="true"
> timeBetweenEvictionRunsMillis="60000"
> numTestsPerEvictionRun="2"
> minEvictableIdleTimeMillis="1800000"
> removedAbandonned="false"
> removeAbandonedTimeout="300"
> logAbandoned="true">
>
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