I run load test and get following error message, anybody could help me to fix it, (tomcat5.0.27, httpd2.0.52, pgpool3.0.2, postgresql7.4.6).
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eption: Could not retrieve connection info from pool
Caused by: org.apache.commons.dbcp.SQLNestedException: Could not retrieve connection info from pool
at db.sqlmapdao.BaseSqlMapDao.executeQueryForObject(BaseSqlMapDao.java:98)
at db.sqlmapdao.TsuhoMessageKakuninSqlMapDao.getEmcCommonMailSessionBySessionID(TsuhoMessageKakuninSqlMapDao.java:36)
at sun.reflect.GeneratedMethodAccessor194.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.ibatis.dao.engine.impl.DaoProxy.invoke(DaoProxy.java:61)
at $Proxy43.getEmcCommonMailSessionBySessionID(Unknown Source)
at service.CommonService.getEmcCommonMailSessionBySessionID(CommonService.java:109)
... 39 more
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 com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.init(JdbcTransaction.java:48)
at com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.getConnection(JdbcTransaction.java:89)
at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForObject(GeneralStatement.java:99)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:561)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:536)
at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForObject(SqlMapSessionImpl.java:97)
at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForObject(SqlMapClientImpl.java:69)
at db.sqlmapdao.BaseSqlMapDao.executeQueryForObject(BaseSqlMapDao.java:96)
... 46 more
Caused by: java.lang.NullPointerException
at org.apache.commons.collections.SequencedHashMap.removeEntry(SequencedHashMap.java:215)
at org.apache.commons.collections.SequencedHashMap.put(SequencedHashMap.java:433)
at org.apache.commons.collections.LRUMap.put(LRUMap.java:125)
at org.apache.commons.dbcp.datasources.SharedPoolDataSource.getUserPassKey(SharedPoolDataSource.java:179)
at org.apache.commons.dbcp.datasources.SharedPoolDataSource.getPooledConnectionAndInfo(SharedPoolDataSource.java:165)
... 56 more
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