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Posted to users@cloudstack.apache.org by David Comerford <da...@gmail.com> on 2013/04/23 02:07:44 UTC
Apparent Deadlock?
Hi guys,
Anyone have any thoughts on these exceptions that pop their head up every
so often in my CS management-server.log ?
Cheers,
Dave
2013-04-23 00:44:18,683 WARN [v2.async.ThreadPoolAsynchronousRunner]
(Timer-3:null)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@4ea3e5fc--
APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending
tasks!
2013-04-23 00:44:18,687 WARN [v2.async.ThreadPoolAsynchronousRunner]
(Timer-3:null)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@4ea3e5fc--
APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 3
Active Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@6a03079d(com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0)
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@6ce90aca(com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1)
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@37c38ba2(com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2)
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@7045548
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@2d7aed91
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.net.SocketInputStream.socketRead0(Native Method)
java.net.SocketInputStream.read(SocketInputStream.java:146)
com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:113)
com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:160)
com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:188)
com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2452)
com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2906)
com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2895)
com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3438)
com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1951)
com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2101)
com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2548)
com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2477)
com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1422)
com.mysql.jdbc.DatabaseMetaData$9.forEach(DatabaseMetaData.java:4844)
com.mysql.jdbc.IterateBlock.doForAll(IterateBlock.java:50)
com.mysql.jdbc.DatabaseMetaData.getTables(DatabaseMetaData.java:4822)
com.mchange.v2.c3p0.impl.DefaultConnectionTester.activeCheckConnectionNoQuery(DefaultConnectionTester.java:185)
com.mchange.v2.c3p0.impl.DefaultConnectionTester.activeCheckConnection(DefaultConnectionTester.java:62)
com.mchange.v2.c3p0.AbstractConnectionTester.activeCheckConnection(AbstractConnectionTester.java:67)
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.testPooledConnection(C3P0PooledConnectionPool.java:368)
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.refurbishIdleResource(C3P0PooledConnectionPool.java:310)
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask.run(BasicResourcePool.java:1999)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.net.SocketInputStream.socketRead0(Native Method)
java.net.SocketInputStream.read(SocketInputStream.java:146)
com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:113)
com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:160)
com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:188)
com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2452)
com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2906)
com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2895)
com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3438)
com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1951)
com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2101)
com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2548)
com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2477)
com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1422)
com.mysql.jdbc.DatabaseMetaData$9.forEach(DatabaseMetaData.java:4844)
com.mysql.jdbc.IterateBlock.doForAll(IterateBlock.java:50)
com.mysql.jdbc.DatabaseMetaData.getTables(DatabaseMetaData.java:4822)
com.mchange.v2.c3p0.impl.DefaultConnectionTester.activeCheckConnectionNoQuery(DefaultConnectionTester.java:185)
com.mchange.v2.c3p0.impl.DefaultConnectionTester.activeCheckConnection(DefaultConnectionTester.java:62)
com.mchange.v2.c3p0.AbstractConnectionTester.activeCheckConnection(AbstractConnectionTester.java:67)
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.testPooledConnection(C3P0PooledConnectionPool.java:368)
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.refurbishIdleResource(C3P0PooledConnectionPool.java:310)
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask.run(BasicResourcePool.java:1999)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.net.SocketInputStream.socketRead0(Native Method)
java.net.SocketInputStream.read(SocketInputStream.java:146)
com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:113)
com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:160)
com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:188)
com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2452)
com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2906)
com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2895)
com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3438)
com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1951)
com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2101)
com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2548)
com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2477)
com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1422)
com.mysql.jdbc.DatabaseMetaData$9.forEach(DatabaseMetaData.java:4844)
com.mysql.jdbc.IterateBlock.doForAll(IterateBlock.java:50)
com.mysql.jdbc.DatabaseMetaData.getTables(DatabaseMetaData.java:4822)
com.mchange.v2.c3p0.impl.DefaultConnectionTester.activeCheckConnectionNoQuery(DefaultConnectionTester.java:185)
com.mchange.v2.c3p0.impl.DefaultConnectionTester.activeCheckConnection(DefaultConnectionTester.java:62)
com.mchange.v2.c3p0.AbstractConnectionTester.activeCheckConnection(AbstractConnectionTester.java:67)
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.testPooledConnection(C3P0PooledConnectionPool.java:368)
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.refurbishIdleResource(C3P0PooledConnectionPool.java:310)
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask.run(BasicResourcePool.java:1999)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
2013-04-23 00:45:18,688 WARN [v2.async.ThreadPoolAsynchronousRunner]
(Timer-3:null) Task
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@6a03079d(in
deadlocked PoolThread) failed to complete in maximum time 60000ms.
Trying interrupt().