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📝More docs to one-of storage strategy

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Anton SHEPILOV
2024-10-31 15:08:17 +01:00
committed by Anton Shepilov
parent d587c13c6b
commit 6c7dac388f
1 changed files with 8 additions and 0 deletions
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tdrive/backend/node/src/core/platform/services/storage/oneof-storage-strategy.ts
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@@ -12,6 +12,14 @@ import { logger } from "../../../platform/framework";
* OneOfStorageStrategy is responsible for managing multiple storage backends. * OneOfStorageStrategy is responsible for managing multiple storage backends.
* It writes to, reads from, removes, and checks for the existence of files * It writes to, reads from, removes, and checks for the existence of files
* across multiple storage systems. * across multiple storage systems.
*
* WARNING: Be careful using this strategy. There is a very big probability that
* all storages won't be synchronized. You need to use external synchronization
* tools like rclone to keep them in sync.
* As far as all the objects in a storage are immutable you won't have inconsistent
* state of the object except it could've been deleted, and it's still exists in one
* of the storages. So you will need to have external procedures to clean up storages
* and make "garbage" collection.
*/ */
export class OneOfStorageStrategy implements StorageConnectorAPI { export class OneOfStorageStrategy implements StorageConnectorAPI {
constructor(private readonly storages: StorageConnectorAPI[]) {} constructor(private readonly storages: StorageConnectorAPI[]) {}