buildgrid.server.cas.storage.sharded module
- class buildgrid.server.cas.storage.sharded.ShardedStorage(storages: Dict[str, StorageABC], thread_pool_size: int | None = None)
Bases:
StorageABC
- TYPE: str = 'Sharded'
- start() None
- stop() None
- has_blob(digest: Digest) bool
Return True if the blob with the given instance/digest exists.
- get_blob(digest: Digest) IO[bytes] | None
Return a file-like object containing the blob. Most implementations will read the entire file into memory and return a BytesIO object. Eventually this should be corrected to handle files which cannot fit into memory.
The file-like object must be readable and seekable.
If the blob isn’t present in storage, return None.
- delete_blob(digest: Digest) None
Delete the blob from storage if it’s present.
- commit_write(digest: Digest, write_session: IO[bytes]) None
Store the contents for a digest.
The storage object is not responsible for verifying that the data written to the write_session actually matches the digest. The caller must do that.
- bulk_delete(digests: List[Digest]) List[str]
Delete a list of blobs from storage.
- missing_blobs(digests: List[Digest]) List[Digest]
Return a container containing the blobs not present in CAS.
- bulk_update_blobs(blobs: List[Tuple[Digest, bytes]]) List[Status]
Given a container of (digest, value) tuples, add all the blobs to CAS. Return a list of Status objects corresponding to the result of uploading each of the blobs.
Unlike in commit_write, the storage object will verify that each of the digests matches the provided data.
- bulk_read_blobs(digests: List[Digest]) Dict[str, bytes]
Given an iterable container of digests, return a {hash: file-like object} dictionary corresponding to the blobs represented by the input digests.
Each file-like object must be readable and seekable.