there is no concurrence lock or any thing that would explain why the lock is not acquired by mysql. After 50 secs (innodb_lock_wait_timeout), the application receives a error: ERROR 1205 (HY000): Lock wait timeout exceeded; try restarting transaction. This problem remains for a while and...
The SHARE UPDATE EXCLUSIVE lock is not acquired when you execute this statement in Hologres. Instead, this statement acquires the SHARE lock in the same way as the CREATE INDEX statement that is executed in non-concurrent mode. CREATE STATISTICS: Hologres does not support this statement. COMME...
// LockRecursionPolicy.NoRecursion: // // LockRecursionException: Write lock may not be acquired with read lock held. This pattern i // s prone to deadlocks. Please ensure that read locks are released before taking a write loc // k. If an upgrade is necessary, use an upgrade lock in...
An LV lock is acquired before the LV is activated, and is released after the LV is deactivated. If the LV lock cannot be acquired, the LV is not activated. LV locks are persistent and remain in place after the activation command is done. GL and VG locks are transient, and are held o...
// LockRecursionPolicy.NoRecursion: // // LockRecursionException: Write lock may not be acquired with read lock held. This pattern i // s prone to deadlocks. Please ensure that read locks are released before taking a write loc // k. If an upgrade is necessary, use an upgrade lock in...
If the lock is not available then the current thread becomes disabled for thread scheduling purposes and lies dormant until one of two things happens: The lock is acquired by the current thread; or Some other threadinterruptsthe current thread, and interruption of lock acquisition is supported. ...
Hi Shaun, No parallelization libraries being used for this, but I am using MS R Open which has the advanced math libraries for using multiple cores when possible in R. The error is only it cannot acquire a lock. Like I said it produces the empty table, but no features in it. Interesti...
This usage ensures that the lock is unlocked if it was acquired, and doesn't try to unlock if the lock was not acquired. Java documentation for java.util.concurrent.locks.Lock.tryLock(). Portions of this page are modifications based on work created and shared by the Android Open Source Pro...
First, your issue wasnotclosed, it was simply moved to a discussion where you can continue adding information and get answers. It seems like the lock is currently held by JDA-NAS and that is why the lock cannot be acquired by the voice server update handler. ...
Acquires the lock.//获取锁,If the lock is not available then the current thread becomes disabledforthread scheduling purposes and lies dormant until the lock has been acquired.//如果锁不可获取,那么由于线程调度器调度的意图,当前线程将被禁止,并且在锁被释放之前当前线程一致处于休眠状态。