Weblogic.jdbc.extensions.PoolLimitSQLException:No resources avail. in pool

Question

Hi,
We are getting the following exceptions. I am also appending the JDBC settings we are using. This is a high volume transaction application.
weblogic.common.resourcepool.ResourceLimitException: No resources currently available in pool <DataSourceName> to allocate to applications, please increase the size of the pool and retry..
ERROR;- Error creating a transaction for database default
org.hibernate.exception.GenericJDBCException: Cannot open connection
ERROR;- Session not found in endSession for database default. This is not okay. refCount=0
FATAL;- Found lingering open database session. referenceCount=-1
<?xml version='1.0' encoding='UTF-8'?>
<jdbc-data-source xmlns="http://www.bea.com/ns/weblogic/90" xmlns:sec="http://www.bea.com/ns/weblogic/90/security" xmlns:xsi=
"http://www.w3.org/2001/XMLSchema-instance" xmlns:wls="http://www.bea.com/ns/weblogic/90/security/wls" xsi:schemaLocation="ht
tp://www.bea.com/ns/weblogic/910/domain.xsd">
<name>DataSource</name>
<jdbc-driver-params>
<url>jdbc:oracle:thin:@serverName:1521:braz2prd</url>
<driver-name>oracle.jdbc.OracleDriver</driver-name>
<properties>
<property>
<name>user</name>
<value>brsadmin</value>
</property>
</properties>
<password-encrypted>{3DES}RWHcVDJQGsEUeR3LGNjB9A==</password-encrypted>
</jdbc-driver-params>
<jdbc-connection-pool-params>
<initial-capacity>10</initial-capacity>
<max-capacity>30</max-capacity>
<capacity-increment>10</capacity-increment>
<test-connections-on-reserve>true</test-connections-on-reserve>
<test-table-name>SQL SELECT 1 FROM DUAL</test-table-name>
</jdbc-connection-pool-params>
<jdbc-data-source-params>
<jndi-name>bharosaDataSource</jndi-name>
<global-transactions-protocol>OnePhaseCommit</global-transactions-protocol>
</jdbc-data-source-params>
</jdbc-data-source>
Thanks in advance. Please suggest..
Thanks,
Shashi.

Answer 1

Shashi Yarlagadaa wrote:
Hi,
We are getting the following exceptions. I am also appending the JDBC settings we are using. This is a high volume transaction application.
weblogic.common.resourcepool.ResourceLimitException: No resources currently available in pool <DataSourceName> to allocate to applications, please increase the size of the pool and retry..
ERROR;- Error creating a transaction for database default
org.hibernate.exception.GenericJDBCException: Cannot open connection
ERROR;- Session not found in endSession for database default. This is not okay. refCount=0
FATAL;- Found lingering open database session. referenceCount=-1
<?xml version='1.0' encoding='UTF-8'?>
<jdbc-data-source xmlns="http://www.bea.com/ns/weblogic/90" xmlns:sec="http://www.bea.com/ns/weblogic/90/security" xmlns:xsi=
"http://www.w3.org/2001/XMLSchema-instance" xmlns:wls="http://www.bea.com/ns/weblogic/90/security/wls" xsi:schemaLocation="ht
tp://www.bea.com/ns/weblogic/910/domain.xsd">
<name>DataSource</name>
<jdbc-driver-params>
<url>jdbc:oracle:thin:@serverName:1521:braz2prd</url>
<driver-name>oracle.jdbc.OracleDriver</driver-name>
<properties>
<property>
<name>user</name>
<value>brsadmin</value>
</property>
</properties>
<password-encrypted>{3DES}RWHcVDJQGsEUeR3LGNjB9A==</password-encrypted>
</jdbc-driver-params>
<jdbc-connection-pool-params>
<initial-capacity>10</initial-capacity>
<max-capacity>30</max-capacity>
<capacity-increment>10</capacity-increment>
<test-connections-on-reserve>true</test-connections-on-reserve>
<test-table-name>SQL SELECT 1 FROM DUAL</test-table-name>
</jdbc-connection-pool-params>
<jdbc-data-source-params>
<jndi-name>bharosaDataSource</jndi-name>
<global-transactions-protocol>OnePhaseCommit</global-transactions-protocol>
</jdbc-data-source-params>
</jdbc-data-source>
Thanks in advance. Please suggest..
Thanks,
Shashi.Hi. I suggest turning on the pool's idle connection timeout to
something slightly longer than you'd expect your longest invocation
to take, and see if the problem goes away. Also, it is better to
make your init capacity = 30 rather than ask the pool to grow
at runtime. Also, keep the capacityIncrement = 1.
Joe