Refactor GC related PD APIs #8978
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This was referenced Jan 6, 2025
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#9016) ref #8978 Exposes etcd's transactoin API to kv.Base layer. The behavior is also simulated in `MemKV` and `LevelDBKV` to provide the same interface. Signed-off-by: MyonKeminta <[email protected]> Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>
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…ovider` to storage/endpoints as the new storage layer for GC related metadata (#9109) ref #8978 Add a new component `GCStateStorage` and `GCStateProvider` to storage/endpoints as the new storage layer for GC related metadata. This is part of the GC Interface Refactor task. The `GCSafePointStorage` is planned to be deprecated, and the GCStateStorage will be the replacement. It's currently not used, and will be used when we refactor the upper layer (`GCSafePointManager`->`GCStateManager`, the gRPC layer, etc.). Signed-off-by: MyonKeminta <[email protected]>
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…afePointManager` (#9169) ref #8978 Add `GCStateManager` which is planned to be the replacement of `SafePointManager`. This is part of the refactor task #8978 . The new module is not yet used until the next PR updates the gRPC service interfaces. Signed-off-by: MyonKeminta <[email protected]> Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>
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…hod to `GCStateManager` (#9134) ref #8978 Implement compatibility methods and `GetAllKeyspacesGCStates` method to `GCStateManager`, which is planned to be the replacement of `SafePointManager`. Signed-off-by: MyonKeminta <[email protected]> Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>
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ref #8978 Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>
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ref #8978 Add new gRPC API for GC as designed in the refactor task #8978 . Also adapts the existing GC APIs to the new implementation. Signed-off-by: MyonKeminta <[email protected]> Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>
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close #8978 client: Update PD Client interface and supports the new GC API This is part of the GC Refactor work #8978 . Signed-off-by: MyonKeminta <[email protected]> Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>
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Development Task
This is the majority part of the refactoring task pingcap/tidb#58720.
A set of new APIs for GC will be implemented which is expected to provide a more comprehensible semantics and recude potential misuses. This will also be the basis for implementing a planned feature name protected snapshots.
Subtasks
Note that protected snapshots won't be included in this phase and will be another separated work after finishing the refactoring.
kv.Baselayer, parallel to the existingkv.Base.RunInTxn. storage: expose etcd's transaction as LowLevelTxn interface to kv.Base #9016GCStateStorageandGCStateProviderto storage/endpoints as the new storage layer for GC related metadata #9109GCStateManagerlayerGCStateManagerwhich is planned to be the replacement ofSafePointManager#9169GetAllKeyspacesGCStatesmethod toGCStateManager#9134pd.Clientinterface type.gc-statefor replacing the currentservice-gc-safepointcommand.Other fixes:
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