记录锁(LOCK RECNOT GAP): lock mode X locks rec but not gap 间隙锁(LOCK GAP): lock mode X locks gap before rec Next-key 锁(LOCKORNIDARY): lock mode X 插入意向锁(LOCK INSERT INTENTION): lock_mode X locks gap before rec insert intention 行锁兼容矩阵(横向是已持有锁,纵向是正在请求的...
Because both transactions are converting to exclusive (X) locks, and they are each waiting for the other transaction to release its shared-mode lock, a deadlock occurs. To avoid this potential deadlock problem, update (U) locks are used. Only one transaction can obtain an update (U) lock...
RECORD LOCKS space id 817 page no 7434 n bits 88 index uniq_key of tabletabletrx id 1 lock_mode X locks gap before rec insert intention waiting Record lock, heap no 2 PHYSICAL RECORD: n_fields 3; compact format; info bits 0 线程二 *** (2) HOLDS THE LOCK(S): RECORD LOCKS space ...
owner id=process5e27708 mode=X waiter-list waiter id=process5e09dc8 mode=U requestType=wait 从executionStack里可以看到,死锁的确是发生在两条update语句上。连接1(spid=54,process id=process5e09dc8),另外一个连接2(spid=60,process id=process5e27708)。
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A JavaScript / Python / PHP cryptocurrency trading API with support for more than 130 bitcoin/altcoin exchanges - ccxt/package-lock.json at master · yclolivier/ccxt
Raw Lockdown: subscription-ma: /dev/mem,kmem,port is restricted; see man kernel_lockdown.7 Lockdown: rhsmcertd-worke: /dev/mem,kmem,port is restricted; see man kernel_lockdown.7 Root Cause TheKernel Lockdownfeature will be automatically enabled if the system boots inEFI Secure Bootmode whi...
Modenvarchar(8)所请求的锁模式。 可以是: NULL= 未向资源授予任何访问权限。 用作占位符。 Sch-S= 架构稳定性。 确保架构元素(如表或索引)不会删除,而任何会话都持有架构元素的架构稳定性锁。 Sch-M= 架构修改。 必须由要更改指定资源架构的任何会话持有。 确保没有其他会话正在引用所指示的对象。