Hello,
I'm using Torque to connect to my MSSql and MySQL Server database.
Everything is working fine, just one problem, some times Database connection
fail and don't come back (both, mysql and mssql) by it self and I have to
restart my webserver
(where it is running my application).
Running the command netstat, I can't see any connnection to database server.
I'm using:
- torque-3.2.jar
- apache tomcat 5.5.12
- java jdk 1.5.0_06
- RedHat Linux Enterprise 4
And the folowing torque setup for mysql:
torque.dsfactory.APP.factory =
org.apache.torque.dsfactory.SharedPoolDataSourceFactory
torque.dsfactory.APP.connection.driver = com.mysql.jdbc.Driver
torque.dsfactory.APP.connection.url =
jdbc:mysql://IP:PORT/APP?autoReconnect=true
torque.dsfactory.APP.connection.user = yyy
torque.dsfactory.APP.connection.password = xxx
torque.dsfactory.APP.pool.defaultTransactionIsolation=1
torque.dsfactory.APP.pool.maxWait=600000
torque.dsfactory.APP.pool.maxActive=32
torque.dsfactory.APP.pool.maxIdle=32
torque.dsfactory.APP.pool.testOnBorrow=true
torque.dsfactory.APP.pool.validationQuery=SELECT 1
And for MSSqlServer:
torque.dsfactory.APP2.factory =
org.apache.torque.dsfactory.SharedPoolDataSourceFactory
torque.dsfactory.APP2.connection.driver = net.sourceforge.jtds.jdbc.Driver
torque.dsfactory.APP2.connection.url = jdbc:jtds:sqlserver://IP:1433/DATABASE
.. similary to mysql ...
The ERROR message:
org.apache.torque.TorqueException: org.apache.commons.dbcp.SQLNestedException:
Could not retrieve connection info from pool
at
org.apache.torque.TorqueInstance.getConnection(TorqueInstance.java:825)
at org.apache.torque.Torque.getConnection(Torque.java:272)
at org.apache.torque.util.BasePeer.doPSSelect(BasePeer.java:1478)
...
Caused by: org.apache.commons.dbcp.SQLNestedException: Could not retrieve
connection info from pool
at
org.apache.commons.dbcp.datasources.SharedPoolDataSource.getPooledConnectionAndInfo(SharedPoolDataSource.java:169)
at
org.apache.commons.dbcp.datasources.InstanceKeyDataSource.getConnection(InstanceKeyDataSource.java:631)
at
org.apache.commons.dbcp.datasources.InstanceKeyDataSource.getConnection(InstanceKeyDataSource.java:615)
at
org.apache.torque.TorqueInstance.getConnection(TorqueInstance.java:821)
... 11 more
Caused by: java.lang.NullPointerException
at
org.apache.commons.collections.SequencedHashMap.removeEntry(SequencedHashMap.java:215)
at
org.apache.commons.collections.SequencedHashMap.removeImpl(SequencedHashMap.java:473)
at
org.apache.commons.collections.SequencedHashMap.remove(SequencedHashMap.java:460)
at org.apache.commons.collections.LRUMap.get(LRUMap.java:93)
at
org.apache.commons.dbcp.datasources.SharedPoolDataSource.getUserPassKey(SharedPoolDataSource.java:176)
at
org.apache.commons.dbcp.datasources.SharedPoolDataSource.getPooledConnectionAndInfo(SharedPoolDataSource.java:165)
... 14 more
Restarting my webserver everything is working fine again. Can't torque
re-establish a valid connection to the database by
it self ?
I have an heavy activity on my MSSql database, sometime I get the following
error message:
Caused by: java.sql.SQLException: I/O Error: Connection reset
at net.sourceforge.jtds.jdbc.TdsCore.executeSQL(TdsCore.java:797)
at
net.sourceforge.jtds.jdbc.JtdsStatement.executeSQL(JtdsStatement.java:332)
at
net.sourceforge.jtds.jdbc.JtdsStatement.executeUpdate(JtdsStatement.java:723)
at
net.sourceforge.jtds.jdbc.JtdsStatement.executeUpdate(JtdsStatement.java:652)
at org.apache.torque.util.BasePeer.executeStatement(BasePeer.java:1294)
... 6 more
Does the error "Connection reset" is telling me I'm losting one connection from
the pool and after losing all
connection I get "Could not retrieve connection info from pool" ? If so, do I
have to create a new connection and
set it on the pool ?
Thank you,
Eduardo.
