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Merge pull request #2923 from matrix-org/erikj/stream_ago_worker 

Calculate stream_ordering_month_ago correctly on workers
This commit is contained in:
Erik Johnston 2018-03-01 16:23:54 +00:00 committed by GitHub
parent 4bc4236faf 872ff95ed4
commit 22518e2833
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 85 additions and 80 deletions
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1
synapse/replication/slave/storage/events.py
View File

@ -67,7 +67,6 @@ class SlavedEventStore(RoomMemberWorkerStore, EventPushActionsWorkerStore,
"MembershipStreamChangeCache", events_max,
)
self.stream_ordering_month_ago = 0
self._stream_order_on_start = self.get_room_max_stream_ordering()
# Cached functions can't be accessed through a class instance so we need

15
synapse/storage/__init__.py
View File

@ -20,7 +20,6 @@ from synapse.storage.devices import DeviceStore
from .appservice import (
ApplicationServiceStore, ApplicationServiceTransactionStore
)
from ._base import LoggingTransaction
from .directory import DirectoryStore
from .events import EventsStore
from .presence import PresenceStore, UserPresenceState
@ -228,20 +227,6 @@ class DataStore(RoomMemberStore, RoomStore,
prefilled_cache=_group_updates_prefill,
)
cur = LoggingTransaction(
db_conn.cursor(),
name="_find_stream_orderings_for_times_txn",
database_engine=self.database_engine,
after_callbacks=[],
final_callbacks=[],
)
self._find_stream_orderings_for_times_txn(cur)
cur.close()
self.find_stream_orderings_looping_call = self._clock.looping_call(
self._find_stream_orderings_for_times, 10 * 60 * 1000
)
self._stream_order_on_start = self.get_room_max_stream_ordering()
self._min_stream_order_on_start = self.get_room_min_stream_ordering()

149
synapse/storage/event_push_actions.py
View File

@ -14,7 +14,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from ._base import SQLBaseStore
from synapse.storage._base import SQLBaseStore, LoggingTransaction
from twisted.internet import defer
from synapse.util.async import sleep
from synapse.util.caches.descriptors import cachedInlineCallbacks
@ -64,6 +64,27 @@ def _deserialize_action(actions, is_highlight):
class EventPushActionsWorkerStore(SQLBaseStore):
def __init__(self, db_conn, hs):
super(EventPushActionsWorkerStore, self).__init__(db_conn, hs)
# These get correctly set by _find_stream_orderings_for_times_txn
self.stream_ordering_month_ago = None
self.stream_ordering_day_ago = None
cur = LoggingTransaction(
db_conn.cursor(),
name="_find_stream_orderings_for_times_txn",
database_engine=self.database_engine,
after_callbacks=[],
final_callbacks=[],
)
self._find_stream_orderings_for_times_txn(cur)
cur.close()
self.find_stream_orderings_looping_call = self._clock.looping_call(
self._find_stream_orderings_for_times, 10 * 60 * 1000
)
@cachedInlineCallbacks(num_args=3, tree=True, max_entries=5000)
def get_unread_event_push_actions_by_room_for_user(
self, room_id, user_id, last_read_event_id
@ -443,6 +464,69 @@ class EventPushActionsWorkerStore(SQLBaseStore):
desc="remove_push_actions_from_staging",
)
@defer.inlineCallbacks
def _find_stream_orderings_for_times(self):
yield self.runInteraction(
"_find_stream_orderings_for_times",
self._find_stream_orderings_for_times_txn
)
def _find_stream_orderings_for_times_txn(self, txn):
logger.info("Searching for stream ordering 1 month ago")
self.stream_ordering_month_ago = self._find_first_stream_ordering_after_ts_txn(
txn, self._clock.time_msec() - 30 * 24 * 60 * 60 * 1000
)
logger.info(
"Found stream ordering 1 month ago: it's %d",
self.stream_ordering_month_ago
)
logger.info("Searching for stream ordering 1 day ago")
self.stream_ordering_day_ago = self._find_first_stream_ordering_after_ts_txn(
txn, self._clock.time_msec() - 24 * 60 * 60 * 1000
)
logger.info(
"Found stream ordering 1 day ago: it's %d",
self.stream_ordering_day_ago
)
def _find_first_stream_ordering_after_ts_txn(self, txn, ts):
"""
Find the stream_ordering of the first event that was received after
a given timestamp. This is relatively slow as there is no index on
received_ts but we can then use this to delete push actions before
this.
received_ts must necessarily be in the same order as stream_ordering
and stream_ordering is indexed, so we manually binary search using
stream_ordering
"""
txn.execute("SELECT MAX(stream_ordering) FROM events")
max_stream_ordering = txn.fetchone()[0]
if max_stream_ordering is None:
return 0
range_start = 0
range_end = max_stream_ordering
sql = (
"SELECT received_ts FROM events"
" WHERE stream_ordering > ?"
" ORDER BY stream_ordering"
" LIMIT 1"
)
while range_end - range_start > 1:
middle = int((range_end + range_start) / 2)
txn.execute(sql, (middle,))
middle_ts = txn.fetchone()[0]
if ts > middle_ts:
range_start = middle
else:
range_end = middle
return range_end
class EventPushActionsStore(EventPushActionsWorkerStore):
EPA_HIGHLIGHT_INDEX = "epa_highlight_index"
@ -650,69 +734,6 @@ class EventPushActionsStore(EventPushActionsWorkerStore):
WHERE room_id = ? AND user_id = ? AND stream_ordering <= ?
""", (room_id, user_id, stream_ordering))
@defer.inlineCallbacks
def _find_stream_orderings_for_times(self):
yield self.runInteraction(
"_find_stream_orderings_for_times",
self._find_stream_orderings_for_times_txn
)
def _find_stream_orderings_for_times_txn(self, txn):
logger.info("Searching for stream ordering 1 month ago")
self.stream_ordering_month_ago = self._find_first_stream_ordering_after_ts_txn(
txn, self._clock.time_msec() - 30 * 24 * 60 * 60 * 1000
)
logger.info(
"Found stream ordering 1 month ago: it's %d",
self.stream_ordering_month_ago
)
logger.info("Searching for stream ordering 1 day ago")
self.stream_ordering_day_ago = self._find_first_stream_ordering_after_ts_txn(
txn, self._clock.time_msec() - 24 * 60 * 60 * 1000
)
logger.info(
"Found stream ordering 1 day ago: it's %d",
self.stream_ordering_day_ago
)
def _find_first_stream_ordering_after_ts_txn(self, txn, ts):
"""
Find the stream_ordering of the first event that was received after
a given timestamp. This is relatively slow as there is no index on
received_ts but we can then use this to delete push actions before
this.
received_ts must necessarily be in the same order as stream_ordering
and stream_ordering is indexed, so we manually binary search using
stream_ordering
"""
txn.execute("SELECT MAX(stream_ordering) FROM events")
max_stream_ordering = txn.fetchone()[0]
if max_stream_ordering is None:
return 0
range_start = 0
range_end = max_stream_ordering
sql = (
"SELECT received_ts FROM events"
" WHERE stream_ordering > ?"
" ORDER BY stream_ordering"
" LIMIT 1"
)
while range_end - range_start > 1:
middle = int((range_end + range_start) / 2)
txn.execute(sql, (middle,))
middle_ts = txn.fetchone()[0]
if ts > middle_ts:
range_start = middle
else:
range_end = middle
return range_end
@defer.inlineCallbacks
def _rotate_notifs(self):
if self._doing_notif_rotation or self.stream_ordering_day_ago is None: