Java 冬眠+；C3p0+；mysql

我设置了一个应用程序，它使用hibernate和C3P0进行连接池。每当我尝试访问应用程序时，我都会收到404错误。在日志中，我看到mysql已经阻止了应用程序用户。尽管使用了flush主机，但我仍然得到相同的异常。在mysql机器上执行netstat显示有许多入站连接试图以等待状态连接

     com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2    WARN resourcepool.BasicResourcePool:1841 - com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@64804446 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
     java.sql.SQLException: null,  message from server: "Host '10.1.1.76' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'"
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1075)
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984)
              at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1104)
              at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2312)
              at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2122)
              at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:774)
              at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:49)
              at sun.reflect.GeneratedConstructorAccessor36.newInstance(Unknown Source)
              at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
              at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
              at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
              at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:375)
              at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:289)
              at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:135)
              at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)
              at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)
              at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)
              at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)
              at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)
              at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)
              at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
    [03-02-16 06:10:46:910 CST] com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0    WARN resourcepool.BasicResourcePool:1841 - com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@6b7f48cf --                                                 Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
    java.sql.SQLException: null,  message from server: "Host '10.1.1.76' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'"
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1075)
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984)
              at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1104)
              at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2312)
              at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2122)
              at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:774)
              at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:49)
              at sun.reflect.GeneratedConstructorAccessor36.newInstance(Unknown Source)
              at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
              at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
              at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
              at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:375)
              at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:289)
              at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:135)
              at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)
              at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)
              at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)
              at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)
              at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)
              at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)
              at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
    [03-02-16 06:10:46:908 CST] com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1    WARN resourcepool.BasicResourcePool:1841 - com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@2bf45f28 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
    java.sql.SQLException: null,  message from server: "Host '10.1.1.76' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'"
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1075)
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984)
              at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1104)
              at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2312)
              at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2122)
              at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:774)
              at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:49)
              at sun.reflect.GeneratedConstructorAccessor36.newInstance(Unknown Source)
              at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
              at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
              at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
              at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:375)
              at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:289)
              at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:135)
              at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)
              at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)
              at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)
              at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)
              at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)
              at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)
              at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
    [03-02-16 06:10:46:919 CST] localhost-startStop-1   ERROR util.JDBCExceptionReporter:78 - Connections could not be acquired from the underlying database!
    [03-02-16 06:11:16:436 CST] com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1    WARN resourcepool.BasicResourcePool:1841 - com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@67c619c0 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
    java.sql.SQLException: null,  message from server: "Host '10.1.1.76' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'"
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1075)
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984)
              at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1104)
              at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2312)
              at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2122)
              at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:774)
              at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:49)
              at sun.reflect.GeneratedConstructorAccessor36.newInstance(Unknown Source)
              at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
              at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
              at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
              at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:375)
              at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:289)
              at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:135)
              at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)
              at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)
              at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)
              at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)
              at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)
              at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)
              at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
    [03-02-16 06:11:16:438 CST] com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2    WARN resourcepool.BasicResourcePool:1841 - com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@740adfca -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
    java.sql.SQLException: null,  message from server: "Host '10.1.1.76' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'"
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1075)
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
              at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984)
              at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1104)
              at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2312)
              at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2122)
              at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:774)
              at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:49)
              at sun.reflect.GeneratedConstructorAccessor36.newInstance(Unknown Source)
              at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
              at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
              at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
              at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:375)
              at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:289)
              at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:135)
              at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)
              at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)
              at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)
              at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)
              at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)
              at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)
              at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)

com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2 WARN resourcepool.BasicResourcePool:1841-com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@64804446--获取尝试失败！！！清算未决收购。在尝试获取所需的新资源时，我们未能成功获取超过允许的最大获取尝试次数（30）。上次采集尝试异常：
java.sql.SQLException:null，来自服务器的消息：“主机'10.1.1.76'由于许多连接错误而被阻止；使用'mysqladmin flush hosts'解除阻止”
位于com.mysql.jdbc.SQLError.createSQLException（SQLError.java:1075）
位于com.mysql.jdbc.SQLError.createSQLException（SQLError.java:989）
位于com.mysql.jdbc.SQLError.createSQLException（SQLError.java:984）
位于com.mysql.jdbc.MysqlIO.doHandshake（MysqlIO.java:1104）
位于com.mysql.jdbc.ConnectionImpl.connectOneTryOnly（ConnectionImpl.java:2312）
位于com.mysql.jdbc.ConnectionImpl.createNewIO（ConnectionImpl.java:2122）
位于com.mysql.jdbc.ConnectionImpl（ConnectionImpl.java:774）
位于com.mysql.jdbc.JDBC4Connection（JDBC4Connection.java:49）
位于sun.reflect.generatedConstructor accessor36.newInstance（未知源）
在sun.reflect.DelegatingConstructorAccessorImpl.newInstance（DelegatingConstructorAccessorImpl.java:45）
位于java.lang.reflect.Constructor.newInstance（Constructor.java:525）
位于com.mysql.jdbc.Util.HandleneInstance（Util.java:409）
位于com.mysql.jdbc.ConnectionImpl.getInstance（ConnectionImpl.java:375）
位于com.mysql.jdbc.NonRegisteringDriver.connect（NonRegisteringDriver.java:289）
位于com.mchange.v2.c3p0.DriverManagerDataSource.getConnection（DriverManagerDataSource.java:135）
位于com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection（WrapperConnectionPoolDataSource.java:182）
在com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection（WrapperConnectionPoolDataSource.java:171）
位于com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.AcquisiteSource（C3P0PooledConnectionPool.java:137）
位于com.mchange.v2.resourcepool.BasicResourcePool.doAcquire（basicResourceSourcePool.java:1014）
在com.mchange.v2.resourcepool.BasicResourcePool.access$800（BasicResourcePool.java:32）
位于com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run（BasicResourcePool.java:1810）
位于com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run（ThreadPoolAsynchronousRunner.java:547）
[03-02-16 06:10:46:910 CST]com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0 WARN resourcepool.BasicResourcePool:1841-com.mchange.v2.resourcepool.basicResourceSourcePool$AcquireTask@6b7f48cf--获取尝试失败！！！清算未决收购。在尝试获取所需的新资源时，我们未能成功获取超过允许的最大获取尝试次数（30）。上次采集尝试异常：
java.sql.SQLException:null，来自服务器的消息：“主机'10.1.1.76'由于许多连接错误而被阻止；使用'mysqladmin flush hosts'解除阻止”
位于com.mysql.jdbc.SQLError.createSQLException（SQLError.java:1075）
位于com.mysql.jdbc.SQLError.createSQLException（SQLError.java:989）
位于com.mysql.jdbc.SQLError.createSQLException（SQLError.java:984）
位于com.mysql.jdbc.MysqlIO.doHandshake（MysqlIO.java:1104）
位于com.mysql.jdbc.ConnectionImpl.connectOneTryOnly（ConnectionImpl.java:2312）
位于com.mysql.jdbc.ConnectionImpl.createNewIO（ConnectionImpl.java:2122）
位于com.mysql.jdbc.ConnectionImpl（ConnectionImpl.java:774）
位于com.mysql.jdbc.JDBC4Connection（JDBC4Connection.java:49）
位于sun.reflect.generatedConstructor accessor36.newInstance（未知源）
在sun.reflect.DelegatingConstructorAccessorImpl.newInstance（DelegatingConstructorAccessorImpl.java:45）
位于java.lang.reflect.Constructor.newInstance（Constructor.java:525）
位于com.mysql.jdbc.Util.HandleneInstance（Util.java:409）
位于com.mysql.jdbc.ConnectionImpl.getInstance（ConnectionImpl.java:375）
位于com.mysql.jdbc.NonRegisteringDriver.connect（NonRegisteringDriver.java:289）
位于com.mchange.v2.c3p0.DriverManagerDataSource.getConnection（DriverManagerDataSource.java:135）
位于com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection（WrapperConnectionPoolDataSource.java:182）
在com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection（WrapperConnectionPoolDataSource.java:171）
位于com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.AcquisiteSource（C3P0PooledConnectionPool.java:137）
位于com.mchange.v2.resourcepool.BasicResourcePool.doAcquire（basicResourceSourcePool.java:1014）
在com.mchange.v2.resourcepool.BasicResourcePool.access$800（BasicResourcePool.java:32）
位于com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run（BasicResourcePool.java:1810）
位于com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run（ThreadPoolAsynchronousRunner.java:547）
[03-02-16 06:10:46:908 CST]com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1 WARN resourcepool.basicResourcesourc
   mysqld_safe --max_connect_errors=10000 &

  SET GLOBAL max_connect_errors=10000;