https://bz.apache.org/bugzilla/show_bug.cgi?id=57839
Bug ID: 57839
Summary: Commons DBCP Closed Connection error
Product: Tomcat 6
Version: 6.0.5
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: rohini...@in.ibm.com
The Oracle DB has 37k packages in our customer env. The issue is seen after
running the below query from the program or when using
DatabaseMetadata.getProcedureColumns() in a program . We are seeing these
errors "Exhausted Resultset (SQL Code =99999 and vendor code=17,011) " or
"Closed Connection :next (SQL code=08003 , Vendor code=17,008)".
Something happening to connection or resultset getting closed after running the
query/getProcedureColumns call. We have investigated further and see this issue
of Exhausted Resultset/Connection getting closed only when we use the
datasource connection pool logic in our product.
When we run a standalone java program with the query/getProcedureColumns call
, it took 10mins for the customer to get the output and there were no issues.We
want the same behavior with datasource connection pool logic .
We are using Tomcat sevrer and org.apache.commons.pool.impl.GenericObjectPool
connection pool.We have these connection pool settings done.
connectionPool.setMaxActive(25);
connectionPool.setMaxIdle(1);
connectionPool.setMinEvictableIdleTimeMillis(120000);
connectionPool.setTimeBetweenEvictionRunsMillis(1000);
connectionPool.setTestOnReturn(false);
connectionPool.setTestOnBorrow(true);
connectionPool.setTestWhileIdle(false);
Hence please let us know if there is any fine tuning to be done to make query
or DatabaseMetadata.getProcedureColumns() to work when we use datasource
connection pool logic.Please suggest us any other timeout or if there is
anything else which can help us in this scenario.Thanks
SQL QUERY :
SELECT * FROM SYS.ALL_ARGUMENTS WHERE PACKAGE_NAME = 'PKG_TEST' AND OBJECT_NAME
= 'PRC_INSERT' AND OWNER = 'APPS' ORDER BY SEQUENCE
ERROR:
java.sql.SQLRecoverableException: Closed Connection: next
at oracle.jdbc.driver.OracleResultSetImpl.next(OracleResultSetImpl.java:233)
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