weblogic运行异常

[gdsatan]

运行在weblogic下的web站点，通过weblogic的数据源访问数据库。运行了大半年了，今天突然报出个错误，然后站点就无法访问，杀死该进程后重启，站点正常。看有没有大虾指点指点，以下是出错日志
2014-11-03 14:36:45 [com.gdny.intl.cmu.control.action.MsgAction]-[INFO] Message route:IPSWEB
2014-11-03 14:36:45 [com.gdny.intl.cmu.control.action.MsgAction]-[INFO] Invoke message processors......
2014-11-03 14:36:56 [org.hibernate.util.JDBCExceptionReporter]-[WARN] SQL Error: 0, SQLState: null
2014-11-03 14:36:56 [org.hibernate.util.JDBCExceptionReporter]-[ERROR] weblogic.common.resourcepool.ResourceDeadException: 0:weblogic.common.ResourceException: Could not create pool connection. The DBMS driver exception was: IO 错误: Connection reset
2014-11-03 14:36:56 [org.hibernate.util.JDBCExceptionReporter]-[WARN] SQL Error: 0, SQLState: null
2014-11-03 14:36:56 [org.hibernate.util.JDBCExceptionReporter]-[ERROR] Cannot obtain connection: driverURL = jdbc:weblogic:pool:UPS, props = {EmulateTwoPhaseCommit=false, connectionPoolID=UPS, jdbcTxDataSource=true, LoggingLastResource=false, dataSourceName=UPS}
2014-11-03 14:36:56 [org.hibernate.event.def.DefaultLoadEventListener]-[INFO] Error performing load command
org.hibernate.exception.GenericJDBCException: Cannot open connection
at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)
at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1596)

[执笔记忆的空白]

不能创建连接池？ 奇怪的是你重启又好了？

[meng020712]

reate pool connection. The DBMS driver exception was: IO 错误: Connection reset 数据源创建被取消了、 你配置的数据源、有问题？