在编译了liferay 6.0.6的源代码并将它们部署到jboss 5.1.0 GA之后，我在启动jboss时出现了以下错误。
2012-07-04 03:47:11,847 INFO [com.liferay.portal.spring.hibernate.DialectDetector] (main) Using dialect org.hibernate.dialect.HSQLDialect
2012-07-04 03:48:31,054 WARN [com.mchange.v2.async.ThreadPoolAsynchronousRunner] (Timer-1) com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@1aee7e -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2012-07-04 03:48:31,093 WARN [com.mchange.v2.async.ThreadPoolAsynchronousRunner] (Timer-1) com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@1aee7e -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 3
Active Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@1b2eecb (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0)
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@5b66d0 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2)
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@baf34f (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1)
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@1bbd74c
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@133c07e
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@a2a139
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@106cc7d
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@15b47ff
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@1d3e63b
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@b035a8
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,jboss]
org.hsqldb.jdbc.jdbcDatabaseMetaData.getTables(Unknown Source)
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,jboss]
org.hsqldb.jdbc.jdbcDatabaseMetaData.getTables(Unknown Source)
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,jboss]
org.hsqldb.jdbc.jdbcDatabaseMetaData.getTables(Unknown Source)
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$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
2012-07-04 03:49:31,104 WARN [com.mchange.v2.async.ThreadPoolAsynchronousRunner] (Timer-1) Task com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@1b2eecb (in deadlocked PoolThread) failed to complete in maximum time 60000ms. Trying interrupt().
2012-07-04 03:49:31,104 WARN [com.mchange.v2.async.ThreadPoolAsynchronousRunner] (Timer-1) Task com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@5b66d0 (in deadlocked PoolThread) failed to complete in maximum time 60000ms. Trying interrupt().
2012-07-04 03:49:31,104 WARN [com.mchange.v2.async.ThreadPoolAsynchronousRunner] (Timer-1) Task com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@baf34f (in deadlocked PoolThread) failed to complete in maximum time 60000ms. Trying interrupt().
我在网上搜索并发现它与c3p0问题有关。见this link和this。我按照说明操作，尝试在$LIFERAY_HOME/portal-ext.properties
hibernate.c3p0.max_statements=0
或
jdbc.default.acquireIncrement=5
jdbc.default.maxPoolSize=100
jdbc.default.minPoolSize=10
jdbc.default.numHelperThreads=10
但它不起作用。
有什么建议吗？ 谢谢
答案 0 :(得分：2)