java.sql.SQLRecoverableException: IO Error: Connection reset
at oracle.jdbc.driver.T4CConnection.logoff(T4CConnection.java:770)
at oracle.jdbc.driver.PhysicalConnection.close(PhysicalConnection.java:4581)
at com.alibaba.druid.filter.FilterChainImpl.connection_close(FilterChainImpl.java:175)
at com.alibaba.druid.filter.stat.StatFilter.connection_close(StatFilter.java:261)
at com.alibaba.druid.filter.FilterChainImpl.connection_close(FilterChainImpl.java:171)
at com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl.close(ConnectionProxyImpl.java:115)
at com.alibaba.druid.util.JdbcUtils.close(JdbcUtils.java:73)
at com.alibaba.druid.pool.DruidDataSource.shrink(DruidDataSource.java:2662)
at com.alibaba.druid.pool.DruidDataSource$DestroyTask.run(DruidDataSource.java:2427)
at com.alibaba.druid.pool.DruidDataSource$DestroyConnectionThread.run(DruidDataSource.java:2414)
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:196)
at java.net.SocketInputStream.read(SocketInputStream.java:122)
at oracle.net.ns.Packet.receive(Packet.java:311)
at oracle.net.ns.DataPacket.receive(DataPacket.java:105)
at oracle.net.ns.NetInputStream.getNextPacket(NetInputStream.java:305)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:249)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:171)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:89)
at oracle.jdbc.driver.T4CSocketInputStreamWrapper.readNextPacket(T4CSocketInputStreamWrapper.java:123)
at oracle.jdbc.driver.T4CSocketInputStreamWrapper.read(T4CSocketInputStreamWrapper.java:79)
at oracle.jdbc.driver.T4CMAREngineStream.unmarshalUB1(T4CMAREngineStream.java:426)
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:390)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:249)
at oracle.jdbc.driver.T4C7Ocommoncall.doOLOGOFF(T4C7Ocommoncall.java:59)
at oracle.jdbc.driver.T4CConnection.logoff(T4CConnection.java:757)
... 9 more
根據druid監控看出 打開連接池最大緩存爲20個
可是真實打開和關閉的連接 遠大於20個 則連接泄露
close connection error 關閉連接錯誤 也就是說在關閉連接的時候這個連接就已經失效啦
有可能還會有 close statement error 這個錯誤和上面同理
但是怎麼解決還在摸索中 ， 在網上的大浪中基本上都是說
<!-- 打開 removeAbandoned 功能 -- true
30 分 --1800
關閉 logAbandoned連接時輸出錯誤日誌 --true<property name = "removeAbandoned" value = "${jdbc.oracle.removeAbandoned}" />
<property name = "removeAbandonedTimeout" value ="${jdbc.oracle.removeAbandonedTimeout}" />
<property name = "logAbandoned" value = "${jdbc.oracle.logAbandoned}" />
-->
打開removeAbandoned 之後還是沒有解決這個問題
poolPreparedStatements 爲false 時 PreparedStatement打開 和關閉數正常 但是問題還是沒有得到解決
最終解決辦法爲 :
獲取連接時驗證該連接是否可用
jdbc.oracle.testOnBorrow=true
__只能暫時用這個方法解決當前問題
正常情況下他是不需要將testOnBorrow設置爲true
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