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[skip ci] Fix typo of root coordinator recovery doc (#8689)

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Signed-off-by: dragondriver <jiquan.long@zilliz.com>
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dragondriver 2021-09-27 18:22:09 +08:00 committed by GitHub
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docs/design_docs/root_coordinator_recovery_on_power_failure.md
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@ -13,7 +13,7 @@
1. `RC` needs to load meta from etcd when it starts, this part is already done
### 2.2 `dd requests` from grpc
1. The `dd requests`, such as create_collection, create_partition, etc., from grpc are marked as done only if the related meata have been writen into etcd.
1. The `dd requests`, such as create_collection, create_partition, etc., from grpc are marked as done only if the related meta have been writen into etcd.
2. The `dd requests` should be send to `dd msgstream` when the operation is done.
3. There may be a fault here, that is, the `dd request` has been written to etcd, but it has not been sent to `dd msgstream` yet, then the `RC` has crashed.
4. For the scenarios mentioned in item 3, `RC` needs to check if all `dd requests` are sent to `dd msgstream` when it starts up.