MySQL備份導致的waiting for global read lock

最近業務高峯期間經常會有開發跳起來說應用連接數據庫超時了!   我們來看下mysql的運行狀態   Waiting for release of readlock:等待釋放全局鎖 The thread is waiting for a global read lock obtained by another thread (with FLUSH TABLES WITH READ LOCK) to
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