Rewind after region cache GC reaches the end #678
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Signed-off-by: Yilin Chen <sticnarf@gmail.com>
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Signed-off-by: Yilin Chen <sticnarf@gmail.com>
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* RuntimeStat: Clone `SnapshotRuntimeStats` Completely (#641) * add more info for cloning SnapshotRuntimeStats Signed-off-by: TonsnakeLin <lpbgytong@163.com> * add more info for cloning SnapshotRuntimeStats Signed-off-by: TonsnakeLin <lpbgytong@163.com> * shallow copy SnapshotRuntimeStats Signed-off-by: TonsnakeLin <lpbgytong@163.com> Signed-off-by: TonsnakeLin <lpbgytong@163.com> Co-authored-by: Yilin Chen <sticnarf@gmail.com> * fix data race in the LockKeys (#655) Signed-off-by: Weizhen Wang <wangweizhen@pingcap.com> * Add a background region cache GC goroutine (#664) Signed-off-by: Yilin Chen <sticnarf@gmail.com> * Rewind after cacheGC reaches the end (#678) Signed-off-by: Yilin Chen <sticnarf@gmail.com> --------- Signed-off-by: TonsnakeLin <lpbgytong@163.com> Signed-off-by: Weizhen Wang <wangweizhen@pingcap.com> Signed-off-by: Yilin Chen <sticnarf@gmail.com> Co-authored-by: TonsnakeLin <87681388+TonsnakeLin@users.noreply.github.com> Co-authored-by: Weizhen Wang <wangweizhen@pingcap.com>
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* Add a background region cache GC goroutine (#664) * Add a background region cache GC goroutine Signed-off-by: Yilin Chen <sticnarf@gmail.com> * Change interval to 1s and regionPerRound to 50 Signed-off-by: Yilin Chen <sticnarf@gmail.com> * Rewind after cacheGC reaches the end (#678) Signed-off-by: Yilin Chen <sticnarf@gmail.com> --------- Signed-off-by: Yilin Chen <sticnarf@gmail.com>
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#664 was incomplete. The searching cursor increases monotonically without rewinding. So, if the regions split after the cursor passes their start keys, they will not be cleared after being stale.
This PR rewinds the cursor after reaching the end.