java.sql.SQLRecoverableException: IO Err?报错

java.sql.SQLRecoverableException: IO Error: Connection reset
at oracle.jdbc.driver.T4CConnection.logoff(T4CConnection.java:504) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.jdbc.driver.PhysicalConnection.close(PhysicalConnection.java:3754) ~[ojdbc6.jar:11.2.0.1.0]
at com.mchange.v2.c3p0.impl.NewPooledConnection.close(NewPooledConnection.java:549) [c3p0-0.9.1.2.jar:0.9.1.2]
at com.mchange.v2.c3p0.impl.NewPooledConnection.close(NewPooledConnection.java:234) [c3p0-0.9.1.2.jar:0.9.1.2]
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.destroyResource(C3P0PooledConnectionPool.java:470) [c3p0-0.9.1.2.jar:0.9.1.2]
at com.mchange.v2.resourcepool.BasicResourcePool$1DestroyResourceTask.run(BasicResourcePool.java:964) [c3p0-0.9.1.2.jar:0.9.1.2]
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547) [c3p0-0.9.1.2.jar:0.9.1.2]
Caused by: java.net.SocketException: Connection reset
at java.lang.Throwable.<init>(Throwable.java:67) ~[na:1.6.0]
at java.net.SocketInputStream.read(SocketInputStream.java:118) ~[na:1.6.0]
at oracle.net.ns.Packet.receive(Packet.java:282) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.net.ns.DataPacket.receive(DataPacket.java:103) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.net.ns.NetInputStream.getNextPacket(NetInputStream.java:230) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.net.ns.NetInputStream.read(NetInputStream.java:175) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.net.ns.NetInputStream.read(NetInputStream.java:100) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.net.ns.NetInputStream.read(NetInputStream.java:85) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.jdbc.driver.T4CSocketInputStreamWrapper.readNextPacket(T4CSocketInputStreamWrapper.java:122) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.jdbc.driver.T4CSocketInputStreamWrapper.read(T4CSocketInputStreamWrapper.java:78) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.jdbc.driver.T4CMAREngine.unmarshalUB1(T4CMAREngine.java:1190) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.jdbc.driver.T4CMAREngine.unmarshalSB1(T4CMAREngine.java:1155) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:279) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:186) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.jdbc.driver.T4C7Ocommoncall.doOLOGOFF(T4C7Ocommoncall.java:61) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.jdbc.driver.T4CConnection.logoff(T4CConnection.java:491) ~[ojdbc6.jar:11.2.0.1.0]
at oracle.jdbc.driver.PhysicalConnection.close(PhysicalConnection.java:3738) ~[ojdbc6.jar:11.2.0.1.0]

... 5 common frames omitted

连接另外一台服务器的数据库的时候一会正常一会报错，求大神解答！！