1.APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!

拋出以下異常信息：

com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@13067b2 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks! com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@13067b2 -- APPARENT DEADLOCK!!! Complete Status: Managed Threads: 3 Active Threads: 3 Active Tasks: com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@e1162c on thread: C3P0PooledConnectionPoolManager[identityToken->1hge1609q1ypllh31mmx1xh|c15b9e]-HelperThread-#1 com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@73e33a on thread: C3P0PooledConnectionPoolManager[identityToken->1hge1609q1ypllh31mmx1xh|c15b9e]-HelperThread-#2 com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@1b5de8b on thread: C3P0PooledConnectionPoolManager[identityToken->1hge1609q1ypllh31mmx1xh|c15b9e]-HelperThread-#0 Pending Tasks: com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@16a448b com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@1ba2754 Pool thread stack traces: Thread[C3P0PooledConnectionPoolManager[identityToken->1hge1609q1ypllh31mmx1xh|c15b9e]-HelperThread-#1,5,main] java.net.SocketInputStream.socketRead0(Native Method) java.net.SocketInputStream.read(SocketInputStream.java:150) java.net.SocketInputStream.read(SocketInputStream.java:121) oracle.net.ns.Packet.receive(Packet.java:282) oracle.net.ns.NSProtocol.connect(NSProtocol.java:286) oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1042) oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:301) oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:531) oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:221) oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32) oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:503) com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:172) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206) com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:200) com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1127) com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1114) com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:44) com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1855) com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696) Thread[C3P0PooledConnectionPoolManager[identityToken->1hge1609q1ypllh31mmx1xh|c15b9e]-HelperThread-#2,5,main] java.net.SocketInputStream.socketRead0(Native Method) java.net.SocketInputStream.read(SocketInputStream.java:150) java.net.SocketInputStream.read(SocketInputStream.java:121) oracle.net.ns.Packet.receive(Packet.java:282) oracle.net.ns.NSProtocol.connect(NSProtocol.java:286) oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1042) oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:301) oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:531) oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:221) oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32) oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:503) com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:172) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206) com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:200) com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1127) com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1114) com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:44) com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1855) com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696) Thread[C3P0PooledConnectionPoolManager[identityToken->1hge1609q1ypllh31mmx1xh|c15b9e]-HelperThread-#0,5,main] java.net.SocketInputStream.socketRead0(Native Method) java.net.SocketInputStream.read(SocketInputStream.java:150) java.net.SocketInputStream.read(SocketInputStream.java:121) oracle.net.ns.Packet.receive(Packet.java:282) oracle.net.ns.NSProtocol.connect(NSProtocol.java:286) oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1042) oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:301) oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:531) oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:221) oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32) oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:503) com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:172) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206) com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:200) com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1127) com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1114) com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:44) com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1855) com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696) View Code

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轉載于:https://www.cnblogs.com/jiktiv123/p/7640757.html

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