Open erajasekar opened 3 years ago
Three years later I suspect you've resolved this, but the problem is that calls to getLocalHost(...)
are neither succeeding promptly nor failing with an Exception
, either of which c3p0 can deal with. They are hanging indefinitely.
c3p0 includes a workaround that can help -- maxAdministrativeTaskTime
-- but it's best to understand and resolve the hang.
I am getting this error in during application startup with it connects to Oracle DB running in a
virtual
box:X
20200924182802.072Uninitialized
129Uninitialized`Uninitialized``Uninitialized`WARN`com.mchange.v2.async.ThreadPoolAsynchronousRunner`com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@67237c3e -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks! X`20200924182802.075`Uninitialized`129
UninitializedUninitialized``Uninitialized
WARNcom.mchange.v2.async.ThreadPoolAsynchronousRunner
com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@67237c3e -- APPARENT DEADLOCK!!! Complete Status: Managed Threads: 3 Active Threads: 3 Active Tasks: com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@54e7df38 on thread: C3P0PooledConnectionPoolManager[identityToken->2u1lo5ac1hnhzmq1ul0o8t|18bedf20]-HelperThread-#0 com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@19bb1ac0 on thread: C3P0PooledConnectionPoolManager[identityToken->2u1lo5ac1hnhzmq1ul0o8t|18bedf20]-HelperThread-#1 com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@2c6f0fde on thread: C3P0PooledConnectionPoolManager[identityToken->2u1lo5ac1hnhzmq1ul0o8t|18bedf20]-HelperThread-#2 Pending Tasks: com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@48f66bde com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@220273e7 com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@632e007d com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@376be239Pool thread stack traces: Thread[C3P0PooledConnectionPoolManager[identityToken->2u1lo5ac1hnhzmq1ul0o8t|18bedf20]-HelperThread-#1,5,main] java.net.InetAddress.getLocalHost(InetAddress.java:1486) oracle.jdbc.driver.T4CTTIoauthenticate.setSessionFields(T4CTTIoauthenticate.java:945) oracle.jdbc.driver.T4CTTIoauthenticate.(T4CTTIoauthenticate.java:238)
oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:401)
oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:553)
oracle.jdbc.driver.T4CConnection.(T4CConnection.java:254)
oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528)
com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:214)
com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
Thread[C3P0PooledConnectionPoolManager[identityToken->2u1lo5ac1hnhzmq1ul0o8t|18bedf20]-HelperThread-#2,5,main]
java.net.InetAddress.getLocalHost(InetAddress.java:1486)
oracle.jdbc.driver.T4CTTIoauthenticate.setSessionFields(T4CTTIoauthenticate.java:945)
oracle.jdbc.driver.T4CTTIoauthenticate.(T4CTTIoauthenticate.java:238)
oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:401)
oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:553)
oracle.jdbc.driver.T4CConnection.(T4CConnection.java:254)
oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528)
com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:214)
com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
Thread[C3P0PooledConnectionPoolManager[identityToken->2u1lo5ac1hnhzmq1ul0o8t|18bedf20]-HelperThread-#0,5,main]
java.net.InetAddress.getLocalHost(InetAddress.java:1486)
oracle.jdbc.driver.T4CTTIoauthenticate.setSessionFields(T4CTTIoauthenticate.java:945)
oracle.jdbc.driver.T4CTTIoauthenticate.(T4CTTIoauthenticate.java:238)
oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:401)
oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:553)
oracle.jdbc.driver.T4CConnection.(T4CConnection.java:254)
oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528)
com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:214)
com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)`
Any pointers on how to resolve this?