diff options
Diffstat (limited to 'synapse/storage/_base.py')
| -rw-r--r-- | synapse/storage/_base.py | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py index 459901ac60..c02248cfe9 100644 --- a/synapse/storage/_base.py +++ b/synapse/storage/_base.py @@ -14,11 +14,9 @@ # 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. -import itertools import logging import random import sys -import threading import time from typing import Iterable, Tuple @@ -35,8 +33,6 @@ from synapse.logging.context import LoggingContext, make_deferred_yieldable from synapse.metrics.background_process_metrics import run_as_background_process from synapse.storage.engines import PostgresEngine, Sqlite3Engine from synapse.types import get_domain_from_id -from synapse.util import batch_iter -from synapse.util.caches.descriptors import Cache from synapse.util.stringutils import exception_to_unicode # import a function which will return a monotonic time, in seconds @@ -79,10 +75,6 @@ UNIQUE_INDEX_BACKGROUND_UPDATES = { "event_search": "event_search_event_id_idx", } -# This is a special cache name we use to batch multiple invalidations of caches -# based on the current state when notifying workers over replication. -_CURRENT_STATE_CACHE_NAME = "cs_cache_fake" - class LoggingTransaction(object): """An object that almost-transparently proxies for the 'txn' object @@ -237,23 +229,11 @@ class SQLBaseStore(object): # to watch it self._txn_perf_counters = PerformanceCounters() - self._get_event_cache = Cache( - "*getEvent*", keylen=3, max_entries=hs.config.event_cache_size - ) - - self._event_fetch_lock = threading.Condition() - self._event_fetch_list = [] - self._event_fetch_ongoing = 0 - - self._pending_ds = [] - self.database_engine = hs.database_engine # A set of tables that are not safe to use native upserts in. self._unsafe_to_upsert_tables = set(UNIQUE_INDEX_BACKGROUND_UPDATES.keys()) - self._account_validity = self.hs.config.account_validity - # We add the user_directory_search table to the blacklist on SQLite # because the existing search table does not have an index, making it # unsafe to use native upserts. @@ -272,14 +252,6 @@ class SQLBaseStore(object): self.rand = random.SystemRandom() - if self._account_validity.enabled: - self._clock.call_later( - 0.0, - run_as_background_process, - "account_validity_set_expiration_dates", - self._set_expiration_date_when_missing, - ) - @defer.inlineCallbacks def _check_safe_to_upsert(self): """ @@ -312,62 +284,6 @@ class SQLBaseStore(object): self._check_safe_to_upsert, ) - @defer.inlineCallbacks - def _set_expiration_date_when_missing(self): - """ - Retrieves the list of registered users that don't have an expiration date, and - adds an expiration date for each of them. - """ - - def select_users_with_no_expiration_date_txn(txn): - """Retrieves the list of registered users with no expiration date from the - database, filtering out deactivated users. - """ - sql = ( - "SELECT users.name FROM users" - " LEFT JOIN account_validity ON (users.name = account_validity.user_id)" - " WHERE account_validity.user_id is NULL AND users.deactivated = 0;" - ) - txn.execute(sql, []) - - res = self.cursor_to_dict(txn) - if res: - for user in res: - self.set_expiration_date_for_user_txn( - txn, user["name"], use_delta=True - ) - - yield self.runInteraction( - "get_users_with_no_expiration_date", - select_users_with_no_expiration_date_txn, - ) - - def set_expiration_date_for_user_txn(self, txn, user_id, use_delta=False): - """Sets an expiration date to the account with the given user ID. - - Args: - user_id (str): User ID to set an expiration date for. - use_delta (bool): If set to False, the expiration date for the user will be - now + validity period. If set to True, this expiration date will be a - random value in the [now + period - d ; now + period] range, d being a - delta equal to 10% of the validity period. - """ - now_ms = self._clock.time_msec() - expiration_ts = now_ms + self._account_validity.period - - if use_delta: - expiration_ts = self.rand.randrange( - expiration_ts - self._account_validity.startup_job_max_delta, - expiration_ts, - ) - - self._simple_upsert_txn( - txn, - "account_validity", - keyvalues={"user_id": user_id}, - values={"expiration_ts_ms": expiration_ts, "email_sent": False}, - ) - def start_profiling(self): self._previous_loop_ts = monotonic_time() @@ -1400,47 +1316,6 @@ class SQLBaseStore(object): return cache, min_val - def _invalidate_cache_and_stream(self, txn, cache_func, keys): - """Invalidates the cache and adds it to the cache stream so slaves - will know to invalidate their caches. - - This should only be used to invalidate caches where slaves won't - otherwise know from other replication streams that the cache should - be invalidated. - """ - txn.call_after(cache_func.invalidate, keys) - self._send_invalidation_to_replication(txn, cache_func.__name__, keys) - - def _invalidate_state_caches_and_stream(self, txn, room_id, members_changed): - """Special case invalidation of caches based on current state. - - We special case this so that we can batch the cache invalidations into a - single replication poke. - - Args: - txn - room_id (str): Room where state changed - members_changed (iterable[str]): The user_ids of members that have changed - """ - txn.call_after(self._invalidate_state_caches, room_id, members_changed) - - if members_changed: - # We need to be careful that the size of the `members_changed` list - # isn't so large that it causes problems sending over replication, so we - # send them in chunks. - # Max line length is 16K, and max user ID length is 255, so 50 should - # be safe. - for chunk in batch_iter(members_changed, 50): - keys = itertools.chain([room_id], chunk) - self._send_invalidation_to_replication( - txn, _CURRENT_STATE_CACHE_NAME, keys - ) - else: - # if no members changed, we still need to invalidate the other caches. - self._send_invalidation_to_replication( - txn, _CURRENT_STATE_CACHE_NAME, [room_id] - ) - def _invalidate_state_caches(self, room_id, members_changed): """Invalidates caches that are based on the current state, but does not stream invalidations down replication. @@ -1474,63 +1349,6 @@ class SQLBaseStore(object): # which is fine. pass - def _send_invalidation_to_replication(self, txn, cache_name, keys): - """Notifies replication that given cache has been invalidated. - - Note that this does *not* invalidate the cache locally. - - Args: - txn - cache_name (str) - keys (iterable[str]) - """ - - if isinstance(self.database_engine, PostgresEngine): - # get_next() returns a context manager which is designed to wrap - # the transaction. However, we want to only get an ID when we want - # to use it, here, so we need to call __enter__ manually, and have - # __exit__ called after the transaction finishes. - ctx = self._cache_id_gen.get_next() - stream_id = ctx.__enter__() - txn.call_on_exception(ctx.__exit__, None, None, None) - txn.call_after(ctx.__exit__, None, None, None) - txn.call_after(self.hs.get_notifier().on_new_replication_data) - - self._simple_insert_txn( - txn, - table="cache_invalidation_stream", - values={ - "stream_id": stream_id, - "cache_func": cache_name, - "keys": list(keys), - "invalidation_ts": self.clock.time_msec(), - }, - ) - - def get_all_updated_caches(self, last_id, current_id, limit): - if last_id == current_id: - return defer.succeed([]) - - def get_all_updated_caches_txn(txn): - # We purposefully don't bound by the current token, as we want to - # send across cache invalidations as quickly as possible. Cache - # invalidations are idempotent, so duplicates are fine. - sql = ( - "SELECT stream_id, cache_func, keys, invalidation_ts" - " FROM cache_invalidation_stream" - " WHERE stream_id > ? ORDER BY stream_id ASC LIMIT ?" - ) - txn.execute(sql, (last_id, limit)) - return txn.fetchall() - - return self.runInteraction("get_all_updated_caches", get_all_updated_caches_txn) - - def get_cache_stream_token(self): - if self._cache_id_gen: - return self._cache_id_gen.get_current_token() - else: - return 0 - def _simple_select_list_paginate( self, table, |