#UNLOCK

ORA-27127: unable to unlock shared memory segment

文档解释ORA-27127:unabletounlocksharedmemorysegmentCause:insufficientprivilegestounlocksharedmemorysegmentAction:makesureprocessisrunningwithnecessaryprivileges.ORA...

ORA-28015: Account unlock attempted on read-only database but a conflicting account lockout on the primary exists

文档解释ORA-28015:Accountunlockattemptedonread-onlydatabasebutaconflictingaccountlockoutontheprimaryexistsCause:Anattempttounlockanaccountonaread-onlydatabasewaspre...

MySQL Error number: MY-014040; Symbol: ER_COMPONENT_UNLOCK; SQLSTATE: HY000

文档解释Errornumber:MY-014040;Symbol:ER_COMPONENT_UNLOCK;SQLSTATE:HY000Message:Lockfrom%s:%ufailedtounlock.错误说明MySQL错误MY-014040(ER_COMPONENT_UNLOCK)指示与组件对象相关的解锁操作失败...

深入浅出 Java Concurrency (9): 锁机制 part 4 锁释放与条件变量 (Lock.unlock And Condition)

本小节介绍锁释放Lock.unlock()。Release/TryReleaseunlock操作实际上就调用了AQS的release操作,释放持有的锁。publicfinalbooleanrelease(intarg){   if(tryRelease(arg)){  ...