com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@1035079 -- APPARENT DEADLOCK!!! Complete Status: Managed Threads: 3 Active Threads: 3 Active Tasks: com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@b1cc87 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0) com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@eaf40c (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1) com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@13c6641 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2) Pending Tasks: com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@5d391d com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@50a649 Pool thread stack traces: Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main] java.net.PlainSocketImpl.socketConnect(Native Method) java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351) java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213) java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200) java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) java.net.Socket.connect(Socket.java:529) java.net.Socket.connect(Socket.java:478) java.net.Socket.<init>(Socket.java:375) java.net.Socket.<init>(Socket.java:218) com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:253) com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:280) com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2026) com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:718) com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46) sun.reflect.GeneratedConstructorAccessor10.newInstance(Unknown Source) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) java.lang.reflect.Constructor.newInstance(Constructor.java:513) com.mysql.jdbc.Util.handleNewInstance(Util.java:406) com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:302) com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:282) com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:135) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171) com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137) com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014) com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32) com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810) com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547) Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main] java.net.PlainSocketImpl.socketConnect(Native Method) java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351) java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213) java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200) java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) java.net.Socket.connect(Socket.java:529) java.net.Socket.connect(Socket.java:478) java.net.Socket.<init>(Socket.java:375) java.net.Socket.<init>(Socket.java:218) com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:253) com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:280) com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2026) com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:718) com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46) sun.reflect.GeneratedConstructorAccessor10.newInstance(Unknown Source) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) java.lang.reflect.Constructor.newInstance(Constructor.java:513) com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
通常是由于应用服务器连接不到数据库造成的,检查c3p0的配置文件,确保连接到数据库!!!!