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jeremyhi
a99cb56d71
* feat(datanode): wire the object store WAL into the datanode and standalone A datanode configured with `provider = "experimental_object_store"` now builds an `ObjectStoreLogStore` instead of failing with the placeholder "not supported yet" error. The builder resolves `storage_provider` against the object store manager (empty selects the default store, an unknown name is rejected as an invalid `storage_provider`), opens the store under the node id and the standalone generation, stops it if a later build step fails, and hands it to `Datanode`, whose shutdown stops it after the region server. Datanode shutdown is now best-effort: every step runs and the first error is returned. A datanode with a metasrv client still rejects the provider. The standalone bootstrap builds `WalProvider::ObjectStore` with the same derived node prefix before the metasrv WAL conversion, so the WAL options it allocates match the prefix the store runs under. `log-store` exports `ObjectStoreLogStore` and its testing hooks. Mito's test utilities can build an engine on the object store WAL over an in-memory object store, and new engine tests cover create, reopen, replay isolation between regions, batch open, drop and offline cleanup, the latest entry id after replay, and the rejection of object store WAL options on a Raft Engine log store. Signed-off-by: jeremyhi <fengjiachun@gmail.com> * fix(datanode): stop every region engine before the object store WAL The region server returned at the first engine whose stop failed, so the engines after it in map order, Mito included, were never stopped before the datanode stopped the object store WAL. It now attempts every engine, returns the first error and logs the later ones. `ObjectStoreLogStore` is also exported from the `log-store` crate root, and its callers import it from there. Signed-off-by: jeremyhi <fengjiachun@gmail.com> --------- Signed-off-by: jeremyhi <fengjiachun@gmail.com>