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[storage][vineyard] Implement storage lib of vineyard backend (#1952)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| #!/usr/bin/env python | ||
| # -*- coding: utf-8 -*- | ||
| # Copyright 1999-2020 Alibaba Group Holding Ltd. | ||
| # | ||
| # Licensed under the Apache License, Version 2.0 (the "License"); | ||
| # you may not use this file except in compliance with the License. | ||
| # You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, software | ||
| # distributed under the License is distributed on an "AS IS" BASIS, | ||
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| # See the License for the specific language governing permissions and | ||
| # limitations under the License. | ||
|
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| from typing import Dict, List, Tuple | ||
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| import pyarrow as pa | ||
| try: | ||
| import vineyard | ||
| from vineyard._C import ObjectMeta | ||
| from vineyard.core import default_builder_context, default_resolver_context | ||
| from vineyard.data.utils import from_json, to_json | ||
| from vineyard.deploy.local import start_vineyardd | ||
| except ImportError: | ||
| vineyard = None | ||
|
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| from ..lib import sparse | ||
| from .base import StorageBackend, StorageLevel, ObjectInfo | ||
| from .core import BufferWrappedFileObject, StorageFileObject | ||
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| def mars_sparse_matrix_builder(client, value, builder, **kw): | ||
| meta = ObjectMeta() | ||
| meta['typename'] = 'vineyard::SparseMatrix<%s>' % value.dtype.name | ||
| meta['shape_'] = to_json(value.shape) | ||
| meta.add_member('spmatrix', builder.run(client, value.spmatrix, **kw)) | ||
| return client.create_metadata(meta) | ||
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| def mars_sparse_matrix_resolver(obj, resolver): | ||
| meta = obj.meta | ||
| shape = from_json(meta['shape_']) | ||
| spmatrix = resolver.run(obj.member('spmatrix')) | ||
| return sparse.matrix.SparseMatrix(spmatrix, shape=shape) | ||
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| if vineyard is not None: | ||
| default_builder_context.register(sparse.matrix.SparseMatrix, mars_sparse_matrix_builder) | ||
| default_resolver_context.register('vineyard::SparseMatrix', mars_sparse_matrix_resolver) | ||
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| class VineyardFileObject(BufferWrappedFileObject): | ||
| def __init__(self, vineyard_client, object_id, mode, size=None): | ||
| self._client = vineyard_client | ||
| self._object_id = object_id | ||
| super().__init__(mode, size=size) | ||
|
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| def _write_init(self): | ||
| self._buffer = buf = self._client.create_blob(self._size) | ||
| self._object_id = buf.id | ||
| file = self._file = pa.FixedSizeBufferWriter(buf.buffer) | ||
| file.set_memcopy_threads(6) | ||
|
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| def _read_init(self): | ||
| self._buffer = buf = self._client.get_object(self._object_id) | ||
| self._mv = memoryview(buf) | ||
| self._size = len(buf) | ||
|
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| def _write_close(self): | ||
| self._object_id = self._buffer.seal(self._client).id | ||
|
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| def _read_close(self): | ||
| pass | ||
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| class VineyardStorage(StorageBackend): | ||
| def __init__(self, vineyard_socket=None): | ||
| self._client = vineyard.connect(vineyard_socket) | ||
|
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| @classmethod | ||
| async def setup(cls, **kwargs) -> Tuple[Dict, Dict]: | ||
| etcd_endpoints = kwargs.pop('etcd_endpoints', None) | ||
| vineyard_size = kwargs.pop('vineyard_size', '256M') | ||
| vineyard_socket = kwargs.pop('vineyard_socket', '/tmp/vineyard.sock') | ||
| vineyardd_path = kwargs.pop('vineyardd_path', None) | ||
|
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| if kwargs: | ||
| raise TypeError(f'VineyardStorage got unexpected config: {",".join(kwargs)}') | ||
|
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| vineyard_store = start_vineyardd( | ||
| etcd_endpoints, | ||
| vineyardd_path, | ||
| vineyard_size, | ||
| vineyard_socket) | ||
| return dict(vineyard_socket=vineyard_store.__enter__()[1]), dict(vineyard_store=vineyard_store) | ||
|
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| @staticmethod | ||
| async def teardown(**kwargs): | ||
| vineyard_store = kwargs.get('vineyard_store') | ||
| vineyard_store.__exit__(None, None, None) | ||
|
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| @property | ||
| def level(self): | ||
| return StorageLevel.MEMORY | ||
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| async def get(self, object_id, **kwarg) -> object: | ||
| return self._client.get(object_id) | ||
|
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| async def put(self, obj, importance=0) -> ObjectInfo: | ||
| object_id = self._client.put(obj) | ||
| size = self._client.get_meta(object_id).nbytes | ||
| return ObjectInfo(size=size, device='memory', object_id=object_id) | ||
|
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| async def delete(self, object_id): | ||
| self._client.delete([object_id], deep=True) | ||
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| async def object_info(self, object_id) -> ObjectInfo: | ||
| size = self._client.get_meta(object_id).nbytes | ||
| return ObjectInfo(size=size, object_id=object_id) | ||
|
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| async def open_writer(self, size=None) -> StorageFileObject: | ||
| if size is None: # pragma: no cover | ||
| raise ValueError('size must be provided for vineyard backend') | ||
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| vineyard_writer = VineyardFileObject(self._client, None, size=size, mode='w') | ||
| vineyard_writer.write(b'') # initialize the object id | ||
| return StorageFileObject(vineyard_writer, object_id=vineyard_writer._object_id) | ||
|
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| async def open_reader(self, object_id) -> StorageFileObject: | ||
| vineyard_reader = VineyardFileObject(self._client, object_id, mode='r') | ||
| return StorageFileObject(vineyard_reader, object_id=object_id) | ||
|
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| async def list(self) -> List: | ||
| # FIXME: vineyard's list_objects not equal to plasma | ||
| raise NotImplementedError |
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