https://issues.apache.org/bugzilla/show_bug.cgi?id=57460
Bug ID: 57460
Summary: [DB2]Connection broken after few hours but not removed
from the pool?
Product: Tomcat Modules
Version: unspecified
Hardware: Other
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: jdbc-pool
Assignee: [email protected]
Reporter: [email protected]
Hi,
We encountered an error using tomcat.jdbc in acceptance.
This pool is used by default on TomEE 1.6.0.2. Some application using DB2 had
the issue after a night or at least some hours of inactivity.
Some broken connections seems to be in pool.
Changing the pool implementation to Common JDBC fix the problem.
I am not sure it is very interesting to solve issue on DB2 but maybe...
TomEE 1.6.0.2 use Tomcat 7.0.53
The driver used is DataDirect 5.1.3
Here is the pool configuration is:
JdbcDriver com.merant.datadirect.jdbc.db2.DB2Driver
JdbcUrl
jdbc:datadirect:db2://ooooo:uuu;locationName=xxxx;packageCollection=JDBCV5R0
UserName XXXXXX
Password XXXXXX
JtaManaged true
InitialSize 3
MaxActive 20
MinIdle 3
MaxIdle 10
TestOnBorrow true
testOnReturn true
testWhileIdle true
numTestsPerEvictionRun 1
PoolPreparedStatements true
MaxOpenPreparedStatements 128
ValidationQuery select current date from sysibm.sysdummy1
timeBetweenEvictionRunsMillis 100000
The stack trace is:
Caused by: java.sql.SQLException: [DataDirect][DB2 JDBC Driver]Object has been
closed.
at com.ddtek.jdbc.db2base.ddcf.b(Unknown Source)
at com.ddtek.jdbc.db2base.ddcf.a(Unknown Source)
at com.ddtek.jdbc.db2base.ddce.b(Unknown Source)
at com.ddtek.jdbc.db2base.ddce.a(Unknown Source)
at com.ddtek.jdbc.db2base.BaseConnection.rollback(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at
org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:126)
at
org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)
at
org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.invoke(AbstractCreateStatementInterceptor.java:71)
at
org.apache.tomcat.jdbc.pool.interceptor.StatementCache.invoke(StatementCache.java:180)
at
org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)
at org.apache.tomcat.jdbc.pool.TrapException.invoke(TrapException.java:41)
at
org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)
at
org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)
at com.sun.proxy.$Proxy71.rollback(Unknown Source)
at
org.apache.openejb.resource.jdbc.managed.local.LocalXAResource.rollback(LocalXAResource.java:158)
... 36 more
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