diff --git a/swh/provenance/provenance.py b/swh/provenance/provenance.py index f9fbc55..89bd504 100644 --- a/swh/provenance/provenance.py +++ b/swh/provenance/provenance.py @@ -1,519 +1,519 @@ # Copyright (C) 2021-2022 The Software Heritage developers # See the AUTHORS file at the top-level directory of this distribution # License: GNU General Public License version 3, or any later version # See top-level LICENSE file for more information from datetime import datetime import logging import os from types import TracebackType from typing import Dict, Generator, Iterable, Optional, Set, Tuple, Type from typing_extensions import Literal, TypedDict from swh.core.statsd import statsd from swh.model.model import Sha1Git from .interface import ( DirectoryData, ProvenanceInterface, ProvenanceResult, ProvenanceStorageInterface, RelationData, RelationType, RevisionData, ) from .model import DirectoryEntry, FileEntry, OriginEntry, RevisionEntry from .util import path_normalize LOGGER = logging.getLogger(__name__) BACKEND_DURATION_METRIC = "swh_provenance_backend_duration_seconds" BACKEND_OPERATIONS_METRIC = "swh_provenance_backend_operations_total" class DatetimeCache(TypedDict): data: Dict[Sha1Git, Optional[datetime]] # None means unknown added: Set[Sha1Git] class OriginCache(TypedDict): data: Dict[Sha1Git, str] added: Set[Sha1Git] class RevisionCache(TypedDict): data: Dict[Sha1Git, Sha1Git] added: Set[Sha1Git] class ProvenanceCache(TypedDict): content: DatetimeCache directory: DatetimeCache directory_flatten: Dict[Sha1Git, Optional[bool]] # None means unknown revision: DatetimeCache # below are insertion caches only content_in_revision: Set[Tuple[Sha1Git, Sha1Git, bytes]] content_in_directory: Set[Tuple[Sha1Git, Sha1Git, bytes]] directory_in_revision: Set[Tuple[Sha1Git, Sha1Git, bytes]] # these two are for the origin layer origin: OriginCache revision_origin: RevisionCache revision_before_revision: Dict[Sha1Git, Set[Sha1Git]] revision_in_origin: Set[Tuple[Sha1Git, Sha1Git]] def new_cache() -> ProvenanceCache: return ProvenanceCache( content=DatetimeCache(data={}, added=set()), directory=DatetimeCache(data={}, added=set()), directory_flatten={}, revision=DatetimeCache(data={}, added=set()), content_in_revision=set(), content_in_directory=set(), directory_in_revision=set(), origin=OriginCache(data={}, added=set()), revision_origin=RevisionCache(data={}, added=set()), revision_before_revision={}, revision_in_origin=set(), ) class Provenance: - MAX_CACHE_ELEMENTS = 100000 + MAX_CACHE_ELEMENTS = 40000 def __init__(self, storage: ProvenanceStorageInterface) -> None: self.storage = storage self.cache = new_cache() def __enter__(self) -> ProvenanceInterface: self.open() return self def __exit__( self, exc_type: Optional[Type[BaseException]], exc_val: Optional[BaseException], exc_tb: Optional[TracebackType], ) -> None: self.close() def _flush_limit_reached(self) -> bool: - return max(self._get_cache_stats().values()) > self.MAX_CACHE_ELEMENTS + return sum(self._get_cache_stats().values()) > self.MAX_CACHE_ELEMENTS def _get_cache_stats(self) -> Dict[str, int]: return { k: len(v["data"]) if (isinstance(v, dict) and v.get("data") is not None) else len(v) # type: ignore for (k, v) in self.cache.items() } def clear_caches(self) -> None: self.cache = new_cache() def close(self) -> None: self.storage.close() @statsd.timed(metric=BACKEND_DURATION_METRIC, tags={"method": "flush"}) def flush(self) -> None: self.flush_revision_content_layer() self.flush_origin_revision_layer() self.clear_caches() def flush_if_necessary(self) -> bool: """Flush if the number of cached information reached a limit.""" LOGGER.debug("Cache stats: %s", self._get_cache_stats()) if self._flush_limit_reached(): self.flush() return True else: return False @statsd.timed( metric=BACKEND_DURATION_METRIC, tags={"method": "flush_origin_revision"} ) def flush_origin_revision_layer(self) -> None: # Origins and revisions should be inserted first so that internal ids' # resolution works properly. urls = { sha1: url for sha1, url in self.cache["origin"]["data"].items() if sha1 in self.cache["origin"]["added"] } if urls: while not self.storage.origin_add(urls): statsd.increment( metric=BACKEND_OPERATIONS_METRIC, tags={"method": "flush_origin_revision_retry_origin"}, ) LOGGER.warning( "Unable to write origins urls to the storage. Retrying..." ) rev_orgs = { # Destinations in this relation should match origins in the next one **{ src: RevisionData(date=None, origin=None) for src in self.cache["revision_before_revision"] }, **{ # This relation comes second so that non-None origins take precedence src: RevisionData(date=None, origin=org) for src, org in self.cache["revision_in_origin"] }, } if rev_orgs: while not self.storage.revision_add(rev_orgs): statsd.increment( metric=BACKEND_OPERATIONS_METRIC, tags={"method": "flush_origin_revision_retry_revision"}, ) LOGGER.warning( "Unable to write revision entities to the storage. Retrying..." ) # Second, flat models for revisions' histories (ie. revision-before-revision). if self.cache["revision_before_revision"]: rev_before_rev = { src: {RelationData(dst=dst, path=None) for dst in dsts} for src, dsts in self.cache["revision_before_revision"].items() } while not self.storage.relation_add( RelationType.REV_BEFORE_REV, rev_before_rev ): statsd.increment( metric=BACKEND_OPERATIONS_METRIC, tags={ "method": "flush_origin_revision_retry_revision_before_revision" }, ) LOGGER.warning( "Unable to write %s rows to the storage. Retrying...", RelationType.REV_BEFORE_REV, ) # Heads (ie. revision-in-origin entries) should be inserted once flat models for # their histories were already added. This is to guarantee consistent results if # something needs to be reprocessed due to a failure: already inserted heads # won't get reprocessed in such a case. if self.cache["revision_in_origin"]: rev_in_org: Dict[Sha1Git, Set[RelationData]] = {} for src, dst in self.cache["revision_in_origin"]: rev_in_org.setdefault(src, set()).add(RelationData(dst=dst, path=None)) while not self.storage.relation_add(RelationType.REV_IN_ORG, rev_in_org): statsd.increment( metric=BACKEND_OPERATIONS_METRIC, tags={"method": "flush_origin_revision_retry_revision_in_origin"}, ) LOGGER.warning( "Unable to write %s rows to the storage. Retrying...", RelationType.REV_IN_ORG, ) @statsd.timed( metric=BACKEND_DURATION_METRIC, tags={"method": "flush_revision_content"} ) def flush_revision_content_layer(self) -> None: # Register in the storage all entities, to ensure the coming relations can # properly resolve any internal reference if needed. Content and directory # entries may safely be registered with their associated dates. In contrast, # revision entries should be registered without date, as it is used to # acknowledge that the flushing was successful. Also, directories are # registered with their flatten flag not set. cnt_dates = { sha1: date for sha1, date in self.cache["content"]["data"].items() if sha1 in self.cache["content"]["added"] and date is not None } if cnt_dates: while not self.storage.content_add(cnt_dates): statsd.increment( metric=BACKEND_OPERATIONS_METRIC, tags={"method": "flush_revision_content_retry_content_date"}, ) LOGGER.warning( "Unable to write content dates to the storage. Retrying..." ) dir_dates = { sha1: DirectoryData(date=date, flat=False) for sha1, date in self.cache["directory"]["data"].items() if sha1 in self.cache["directory"]["added"] and date is not None } if dir_dates: while not self.storage.directory_add(dir_dates): statsd.increment( metric=BACKEND_OPERATIONS_METRIC, tags={"method": "flush_revision_content_retry_directory_date"}, ) LOGGER.warning( "Unable to write directory dates to the storage. Retrying..." ) revs = { sha1 for sha1, date in self.cache["revision"]["data"].items() if sha1 in self.cache["revision"]["added"] and date is not None } if revs: while not self.storage.revision_add(revs): statsd.increment( metric=BACKEND_OPERATIONS_METRIC, tags={"method": "flush_revision_content_retry_revision_none"}, ) LOGGER.warning( "Unable to write revision entities to the storage. Retrying..." ) paths = { path for _, _, path in self.cache["content_in_revision"] | self.cache["content_in_directory"] | self.cache["directory_in_revision"] } if paths: while not self.storage.location_add(paths): statsd.increment( metric=BACKEND_OPERATIONS_METRIC, tags={"method": "flush_revision_content_retry_location"}, ) LOGGER.warning( "Unable to write locations entities to the storage. Retrying..." ) # For this layer, relations need to be inserted first so that, in case of # failure, reprocessing the input does not generated an inconsistent database. if self.cache["content_in_revision"]: cnt_in_rev: Dict[Sha1Git, Set[RelationData]] = {} for src, dst, path in self.cache["content_in_revision"]: cnt_in_rev.setdefault(src, set()).add(RelationData(dst=dst, path=path)) while not self.storage.relation_add( RelationType.CNT_EARLY_IN_REV, cnt_in_rev ): statsd.increment( metric=BACKEND_OPERATIONS_METRIC, tags={"method": "flush_revision_content_retry_content_in_revision"}, ) LOGGER.warning( "Unable to write %s rows to the storage. Retrying...", RelationType.CNT_EARLY_IN_REV, ) if self.cache["content_in_directory"]: cnt_in_dir: Dict[Sha1Git, Set[RelationData]] = {} for src, dst, path in self.cache["content_in_directory"]: cnt_in_dir.setdefault(src, set()).add(RelationData(dst=dst, path=path)) while not self.storage.relation_add(RelationType.CNT_IN_DIR, cnt_in_dir): statsd.increment( metric=BACKEND_OPERATIONS_METRIC, tags={ "method": "flush_revision_content_retry_content_in_directory" }, ) LOGGER.warning( "Unable to write %s rows to the storage. Retrying...", RelationType.CNT_IN_DIR, ) if self.cache["directory_in_revision"]: dir_in_rev: Dict[Sha1Git, Set[RelationData]] = {} for src, dst, path in self.cache["directory_in_revision"]: dir_in_rev.setdefault(src, set()).add(RelationData(dst=dst, path=path)) while not self.storage.relation_add(RelationType.DIR_IN_REV, dir_in_rev): statsd.increment( metric=BACKEND_OPERATIONS_METRIC, tags={ "method": "flush_revision_content_retry_directory_in_revision" }, ) LOGGER.warning( "Unable to write %s rows to the storage. Retrying...", RelationType.DIR_IN_REV, ) # After relations, flatten flags for directories can be safely set (if # applicable) acknowledging those directories that have already be flattened. # Similarly, dates for the revisions are set to acknowledge that these revisions # won't need to be reprocessed in case of failure. dir_acks = { sha1: DirectoryData( date=date, flat=self.cache["directory_flatten"].get(sha1) or False ) for sha1, date in self.cache["directory"]["data"].items() if self.cache["directory_flatten"].get(sha1) and date is not None } if dir_acks: while not self.storage.directory_add(dir_acks): statsd.increment( metric=BACKEND_OPERATIONS_METRIC, tags={"method": "flush_revision_content_retry_directory_ack"}, ) LOGGER.warning( "Unable to write directory dates to the storage. Retrying..." ) rev_dates = { sha1: RevisionData(date=date, origin=None) for sha1, date in self.cache["revision"]["data"].items() if sha1 in self.cache["revision"]["added"] and date is not None } if rev_dates: while not self.storage.revision_add(rev_dates): statsd.increment( metric=BACKEND_OPERATIONS_METRIC, tags={"method": "flush_revision_content_retry_revision_date"}, ) LOGGER.warning( "Unable to write revision dates to the storage. Retrying..." ) def content_add_to_directory( self, directory: DirectoryEntry, blob: FileEntry, prefix: bytes ) -> None: self.cache["content_in_directory"].add( (blob.id, directory.id, path_normalize(os.path.join(prefix, blob.name))) ) def content_add_to_revision( self, revision: RevisionEntry, blob: FileEntry, prefix: bytes ) -> None: self.cache["content_in_revision"].add( (blob.id, revision.id, path_normalize(os.path.join(prefix, blob.name))) ) def content_find_first(self, id: Sha1Git) -> Optional[ProvenanceResult]: return self.storage.content_find_first(id) def content_find_all( self, id: Sha1Git, limit: Optional[int] = None ) -> Generator[ProvenanceResult, None, None]: yield from self.storage.content_find_all(id, limit=limit) def content_get_early_date(self, blob: FileEntry) -> Optional[datetime]: return self.get_dates("content", [blob.id]).get(blob.id) def content_get_early_dates( self, blobs: Iterable[FileEntry] ) -> Dict[Sha1Git, datetime]: return self.get_dates("content", [blob.id for blob in blobs]) def content_set_early_date(self, blob: FileEntry, date: datetime) -> None: self.cache["content"]["data"][blob.id] = date self.cache["content"]["added"].add(blob.id) def directory_add_to_revision( self, revision: RevisionEntry, directory: DirectoryEntry, path: bytes ) -> None: self.cache["directory_in_revision"].add( (directory.id, revision.id, path_normalize(path)) ) def directory_already_flattenned(self, directory: DirectoryEntry) -> Optional[bool]: cache = self.cache["directory_flatten"] if directory.id not in cache: cache.setdefault(directory.id, None) ret = self.storage.directory_get([directory.id]) if directory.id in ret: dir = ret[directory.id] cache[directory.id] = dir.flat # date is kept to ensure we have it available when flushing self.cache["directory"]["data"][directory.id] = dir.date return cache.get(directory.id) def directory_flag_as_flattenned(self, directory: DirectoryEntry) -> None: self.cache["directory_flatten"][directory.id] = True def directory_get_date_in_isochrone_frontier( self, directory: DirectoryEntry ) -> Optional[datetime]: return self.get_dates("directory", [directory.id]).get(directory.id) def directory_get_dates_in_isochrone_frontier( self, dirs: Iterable[DirectoryEntry] ) -> Dict[Sha1Git, datetime]: return self.get_dates("directory", [directory.id for directory in dirs]) def directory_set_date_in_isochrone_frontier( self, directory: DirectoryEntry, date: datetime ) -> None: self.cache["directory"]["data"][directory.id] = date self.cache["directory"]["added"].add(directory.id) def get_dates( self, entity: Literal["content", "directory", "revision"], ids: Iterable[Sha1Git], ) -> Dict[Sha1Git, datetime]: cache = self.cache[entity] missing_ids = set(id for id in ids if id not in cache) if missing_ids: if entity == "content": cache["data"].update(self.storage.content_get(missing_ids)) elif entity == "directory": cache["data"].update( { id: dir.date for id, dir in self.storage.directory_get(missing_ids).items() } ) elif entity == "revision": cache["data"].update( { id: rev.date for id, rev in self.storage.revision_get(missing_ids).items() } ) dates: Dict[Sha1Git, datetime] = {} for sha1 in ids: date = cache["data"].setdefault(sha1, None) if date is not None: dates[sha1] = date return dates def open(self) -> None: self.storage.open() def origin_add(self, origin: OriginEntry) -> None: self.cache["origin"]["data"][origin.id] = origin.url self.cache["origin"]["added"].add(origin.id) def revision_add(self, revision: RevisionEntry) -> None: self.cache["revision"]["data"][revision.id] = revision.date self.cache["revision"]["added"].add(revision.id) def revision_add_before_revision( self, head: RevisionEntry, revision: RevisionEntry ) -> None: self.cache["revision_before_revision"].setdefault(revision.id, set()).add( head.id ) def revision_add_to_origin( self, origin: OriginEntry, revision: RevisionEntry ) -> None: self.cache["revision_in_origin"].add((revision.id, origin.id)) def revision_is_head(self, revision: RevisionEntry) -> bool: return bool(self.storage.relation_get(RelationType.REV_IN_ORG, [revision.id])) def revision_get_date(self, revision: RevisionEntry) -> Optional[datetime]: return self.get_dates("revision", [revision.id]).get(revision.id) def revision_get_preferred_origin( self, revision: RevisionEntry ) -> Optional[Sha1Git]: cache = self.cache["revision_origin"]["data"] if revision.id not in cache: ret = self.storage.revision_get([revision.id]) if revision.id in ret: origin = ret[revision.id].origin if origin is not None: cache[revision.id] = origin return cache.get(revision.id) def revision_set_preferred_origin( self, origin: OriginEntry, revision: RevisionEntry ) -> None: self.cache["revision_origin"]["data"][revision.id] = origin.id self.cache["revision_origin"]["added"].add(revision.id)