java.sql.SQLException: Io 异常: 连接超时

Question

帮我看看咋回事啊？我搞不懂。就是运行很久的一个项目，最近突然就动不动就登陆不了，然后连首页都显示不出来了。然后只能重启服务，就又没问题了。老师需要重启。帮我看看日志全是这个，是什么意思啊？
ERROR 2013-12-06 13:12:20,831 org.logicalcobwebs.proxool.GAP-Pool #0041 encountered errors during destruction:
java.sql.SQLException: Io 异常: 连接超时
at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:74)
at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:131)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:197)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:261)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:566)
at oracle.jdbc.driver.T4CConnection.logoff(T4CConnection.java:500)
at oracle.jdbc.driver.PhysicalConnection.close(PhysicalConnection.java:3509)
at org.logicalcobwebs.proxool.ProxyConnection.reallyClose(ProxyConnection.java:192)
at org.logicalcobwebs.proxool.ConnectionPool.removeProxyConnection(ConnectionPool.java:427)
at org.logicalcobwebs.proxool.HouseKeeper.sweep(HouseKeeper.java:139)
at org.logicalcobwebs.proxool.HouseKeeperThread.run(HouseKeeperThread.java:39)
Caused by: java.net.SocketException: 连接超时
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at oracle.net.ns.Packet.receive(Packet.java:240)
at oracle.net.ns.DataPacket.receive(DataPacket.java:92)
at oracle.net.ns.NetInputStream.getNextPacket(NetInputStream.java:172)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:117)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:92)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:77)
at oracle.jdbc.driver.T4CMAREngine.unmarshalUB1(T4CMAREngine.java:1034)
at oracle.jdbc.driver.T4CMAREngine.unmarshalSB1(T4CMAREngine.java:1010)
at oracle.jdbc.driver.T4C7Ocommoncall.receive(T4C7Ocommoncall.java:97)
at oracle.jdbc.driver.T4CConnection.logoff(T4CConnection.java:487)
... 5 more

Answer 1

可能是连接池没有释放，建议proxypool的自动检测和释放