已经发出Connection连接错误的PooledConnection仍在使用中 [英] A PooledConnection that has already signalled a Connection error is still in use

问题描述

我发布了一个查询此处
我运行hibernate查询后出现这个错误，我不知道它是什么意思。
所以我几分钟后重新运行查询，然后我没有错误，但我想知道我是如何得到它以及如何解决这个问题的。

I post a query here I this error appears after running the hibernate query and I don't know what does it mean. So I rerun the query few minutes later, then I haven't the error but I wanna know how I get it and how to fix it.

WARN  com.mchange.v2.c3p0.impl.NewPooledConnection - [c3p0] A PooledConnection that has already signalled a Connection error is still in use!
WARN  com.mchange.v2.c3p0.impl.NewPooledConnection - [c3p0] Another error has occurred [ java.sql.SQLException: Invalid state, the Connection object is closed. ] which will not be reported to listeners!
java.sql.SQLException: Invalid state, the Connection object is closed.
    at net.sourceforge.jtds.jdbc.ConnectionJDBC2.checkOpen(ConnectionJDBC2.java:1713)
    at net.sourceforge.jtds.jdbc.ConnectionJDBC2.clearWarnings(ConnectionJDBC2.java:2020)
    at com.mchange.v2.c3p0.impl.NewProxyConnection.clearWarnings(NewProxyConnection.java:933)
    at org.hibernate.util.JDBCExceptionReporter.handleAndClearWarnings(JDBCExceptionReporter.java:71)
    at org.hibernate.util.JDBCExceptionReporter.logAndClearWarnings(JDBCExceptionReporter.java:49)
    at org.hibernate.jdbc.ConnectionManager.closeConnection(ConnectionManager.java:472)
    at org.hibernate.jdbc.ConnectionManager.aggressiveRelease(ConnectionManager.java:429)
    at org.hibernate.jdbc.ConnectionManager.afterStatement(ConnectionManager.java:304)
    at org.hibernate.jdbc.AbstractBatcher.closePreparedStatement(AbstractBatcher.java:572)
    at org.hibernate.jdbc.AbstractBatcher.closeStatement(AbstractBatcher.java:291)
    at org.hibernate.jdbc.AbstractBatcher.closeQueryStatement(AbstractBatcher.java:307)
    at org.hibernate.jdbc.AbstractBatcher.closeQueryStatement(AbstractBatcher.java:234)
    at org.hibernate.loader.Loader.getResultSet(Loader.java:1967)
    at org.hibernate.loader.Loader.doQuery(Loader.java:802)
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
    at org.hibernate.loader.Loader.doList(Loader.java:2533)
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)
    at org.hibernate.loader.Loader.list(Loader.java:2271)
    at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:316)
    at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1842)
    at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:165)
    at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:157)
org.hibernate.exception.JDBCConnectionException: could not execute query
    at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:99)
    at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
    at org.hibernate.loader.Loader.doList(Loader.java:2536)
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)
    at org.hibernate.loader.Loader.list(Loader.java:2271)
    at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:316)
    at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1842)
    at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:165)
    at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:157)
Caused by: java.sql.SQLException: I/O Error: Software caused connection abort: recv failed
    at net.sourceforge.jtds.jdbc.TdsCore.executeSQL(TdsCore.java:1053)
    at net.sourceforge.jtds.jdbc.JtdsStatement.executeSQLQuery(JtdsStatement.java:465)
    at net.sourceforge.jtds.jdbc.JtdsPreparedStatement.executeQuery(JtdsPreparedStatement.java:778)
    at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeQuery(NewProxyPreparedStatement.java:76)
    at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208)
    at org.hibernate.loader.Loader.getResultSet(Loader.java:1953)
    at org.hibernate.loader.Loader.doQuery(Loader.java:802)
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
    at org.hibernate.loader.Loader.doList(Loader.java:2533)
    ... 8 more
Caused by: java.net.SocketException: Software caused connection abort: recv failed
    at java.net.SocketInputStream.socketRead0(Native Method)
    at java.net.SocketInputStream.read(SocketInputStream.java:168)
    at java.net.SocketInputStream.read(SocketInputStream.java:121)
    at java.io.DataInputStream.readFully(DataInputStream.java:195)
    at java.io.DataInputStream.readFully(DataInputStream.java:169)
    at net.sourceforge.jtds.jdbc.SharedSocket.readPacket(SharedSocket.java:842)
    at net.sourceforge.jtds.jdbc.SharedSocket.getNetPacket(SharedSocket.java:723)
    at net.sourceforge.jtds.jdbc.ResponseStream.getPacket(ResponseStream.java:466)
    at net.sourceforge.jtds.jdbc.ResponseStream.read(ResponseStream.java:103)
    at net.sourceforge.jtds.jdbc.ResponseStream.peek(ResponseStream.java:88)
    at net.sourceforge.jtds.jdbc.TdsCore.wait(TdsCore.java:3932)
    at net.sourceforge.jtds.jdbc.TdsCore.executeSQL(TdsCore.java:1046)
    ... 16 more

更新：

我的第一个代码：

My first code :

Session session = getSessionfactory().openSession();
session.beginTransaction();

ArrayList<Object[]> results = null;
try {
    StringBuilder sb = new StringBuilder();
    sb.append("select p from person p ");
    sb.append("where CONTAINS(p.name , :myName) ");

    Query q = session.createSQLQuery(sb.toString());
    String myName = "Bob Jones";
    q.setString("myName", "*" + myName + "*");  

    results = (ArrayList<Object[]>) q.list();

} catch (Exception e) {
    logger.error("Error : ", e);
} finally {
    session.close();
}

它不起作用，来修复它
这是第二个版本：

It doesn't work, to fix it this is the 2nd version :

Session session = getSessionfactory().openSession();
session.beginTransaction();

ArrayList<Object[]> results = null;
try {
    StringBuilder sb = new StringBuilder();
    sb.append("select p from person p ");
    sb.append("where CONTAINS(p.name , :myName) ");

    Query q = session.createSQLQuery(sb.toString());
    String myName = "Bob Jones";
    q.setString("myName", "\"*" + myName + "*\""); 

    results = (ArrayList<Object[]>) q.list();

} catch (Exception e) {
    logger.error("Error : ", e);
} finally {
    session.close();
}

尝试运行第二个版本时，出现上述错误。

Trying to run the 2nd version, I have the error above.

推荐答案

您的交易管理和/或连接管理代码可能关闭。看起来您在发生错误后并未释放与连接池的连接，并尝试重新使用它。这可能是由于您使用的错误异常处理习惯造成的。

Your transaction-management and/or connection-management code is probably off. It seems that you are not releasing the connection to the connection pool after an error, and trying to reuse it. This may be due to a wrong exception-handling idiom you are using.

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