DB2 APPARENT DEADLOCK

obeckham

警告: com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@21eb3f -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2013-7-26 10:16:25 com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector run
警告: com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@21eb3f -- APPARENT DEADLOCK!!! Complete Status: 
 Managed Threads: 3
 Active Threads: 3
 Active Tasks: 
  com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@15e796d(com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0)
  com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@176150c(com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1)
  com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@15fc793 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2)
 Pending Tasks: 
  com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@127bd04
  com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1ea8fc0
  com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@83969e
  com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1159092
  com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@c69203
  com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@9c035a
  com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@a0416a
Pool thread stack traces:
 Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
  java.lang.Thread.sleep(Native Method)
  com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1805)
  com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
 Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
  java.lang.Thread.sleep(Native Method)
  com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1805)
  com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
 Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
  java.lang.Thread.sleep(Native Method)
  com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1805)
  com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)

2013-7-26 10:16:34 com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask run
警告: com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@176150c -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
java.sql.SQLException: No suitable driver
 at java.sql.DriverManager.getDriver(DriverManager.java:264)
 at com.mchange.v2.c3p0.DriverManagerDataSource.driver(DriverManagerDataSource.java:224)
 at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:135)
 at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)
 at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)
 at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)
 at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)
 at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)
 at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)
 at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
2013-7-26 10:16:34 com.mchange.v2.lang.VersionUtils <clinit>
警告: java.version ''1.6.0_10-rc2'' could not be parsed. Defaulting to JDK 1.1.
2013-7-26 10:16:34 com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask run
 
 
其中一个说法：
数据连接配置或数据库等类似问题。
1.jdbc.properties中的配置有问题
jdbc.driverClassName=[your driver class]
jdbc.url=[your db url]
2.没有对应数据库
 
第二个说法：
缓存溢出，虚拟机内存调大，连接池缓存设小，把maxPoolSize设小一点。