一,c3p0运行一段时间后报错如下
W 07-26_00:58:27 ThreadPoolAsynchronousRunner.java 608 com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@70929ab6 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
W 07-26_00:58:39 ThreadPoolAsynchronousRunner.java 608 com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@4496b93a -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
二，解决方法如下
1,更新c3p0版本到0.9.2.1 该版本优化了获取connection的规则
2,首先修改c3p0配置参数