mirror of
https://mau.dev/maunium/synapse.git
synced 2024-10-01 01:36:05 -04:00
Refactor _get_events
This commit is contained in:
Erik Johnston
parent
36ea26c5c0
commit
cdb3757942
@ -17,6 +17,7 @@ import logging
|
||||
from synapse.api.errors import StoreError
|
||||
from synapse.events import FrozenEvent
|
||||
from synapse.events.utils import prune_event
|
||||
from synapse.util import unwrap_deferred
|
||||
from synapse.util.logutils import log_function
|
||||
from synapse.util.logcontext import preserve_context_over_fn, LoggingContext
|
||||
from synapse.util.lrucache import LruCache
|
||||
@ -28,7 +29,6 @@ from twisted.internet import defer
|
||||
|
||||
from collections import namedtuple, OrderedDict
|
||||
import functools
|
||||
import itertools
|
||||
import simplejson as json
|
||||
import sys
|
||||
import time
|
||||
@ -870,35 +870,43 @@ class SQLBaseStore(object):
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def _get_events(self, event_ids, check_redacted=True,
|
||||
get_prev_content=False, desc="_get_events"):
|
||||
N = 50 # Only fetch 100 events at a time.
|
||||
get_prev_content=False, allow_rejected=False, txn=None):
|
||||
if not event_ids:
|
||||
defer.returnValue([])
|
||||
|
||||
ds = [
|
||||
self._fetch_events(
|
||||
event_ids[i*N:(i+1)*N],
|
||||
check_redacted=check_redacted,
|
||||
get_prev_content=get_prev_content,
|
||||
)
|
||||
for i in range(1 + len(event_ids) / N)
|
||||
]
|
||||
|
||||
res = yield defer.gatherResults(ds, consumeErrors=True)
|
||||
|
||||
defer.returnValue(
|
||||
list(itertools.chain(*res))
|
||||
event_map = self._get_events_from_cache(
|
||||
event_ids,
|
||||
check_redacted=check_redacted,
|
||||
get_prev_content=get_prev_content,
|
||||
allow_rejected=allow_rejected,
|
||||
)
|
||||
|
||||
missing_events = [e for e in event_ids if e not in event_map]
|
||||
|
||||
missing_events = yield self._fetch_events(
|
||||
txn,
|
||||
missing_events,
|
||||
check_redacted=check_redacted,
|
||||
get_prev_content=get_prev_content,
|
||||
allow_rejected=allow_rejected,
|
||||
)
|
||||
|
||||
event_map.update(missing_events)
|
||||
|
||||
defer.returnValue([
|
||||
event_map[e_id] for e_id in event_ids
|
||||
if e_id in event_map and event_map[e_id]
|
||||
])
|
||||
|
||||
def _get_events_txn(self, txn, event_ids, check_redacted=True,
|
||||
get_prev_content=False):
|
||||
N = 50 # Only fetch 100 events at a time.
|
||||
return list(itertools.chain(*[
|
||||
self._fetch_events_txn(
|
||||
txn, event_ids[i*N:(i+1)*N],
|
||||
check_redacted=check_redacted,
|
||||
get_prev_content=get_prev_content,
|
||||
)
|
||||
for i in range(1 + len(event_ids) / N)
|
||||
]))
|
||||
get_prev_content=False, allow_rejected=False):
|
||||
return unwrap_deferred(self._get_events(
|
||||
event_ids,
|
||||
check_redacted=check_redacted,
|
||||
get_prev_content=get_prev_content,
|
||||
allow_rejected=allow_rejected,
|
||||
txn=txn,
|
||||
))
|
||||
|
||||
def _invalidate_get_event_cache(self, event_id):
|
||||
for check_redacted in (False, True):
|
||||
@ -909,68 +917,24 @@ class SQLBaseStore(object):
|
||||
def _get_event_txn(self, txn, event_id, check_redacted=True,
|
||||
get_prev_content=False, allow_rejected=False):
|
||||
|
||||
start_time = time.time() * 1000
|
||||
|
||||
def update_counter(desc, last_time):
|
||||
curr_time = self._get_event_counters.update(desc, last_time)
|
||||
sql_getevents_timer.inc_by(curr_time - last_time, desc)
|
||||
return curr_time
|
||||
|
||||
try:
|
||||
ret = self._get_event_cache.get(event_id, check_redacted, get_prev_content)
|
||||
|
||||
if allow_rejected or not ret.rejected_reason:
|
||||
return ret
|
||||
else:
|
||||
return None
|
||||
except KeyError:
|
||||
pass
|
||||
finally:
|
||||
start_time = update_counter("event_cache", start_time)
|
||||
|
||||
sql = (
|
||||
"SELECT e.internal_metadata, e.json, r.redacts, rej.event_id "
|
||||
"FROM event_json as e "
|
||||
"LEFT JOIN rejections as rej USING (event_id) "
|
||||
"LEFT JOIN redactions as r ON e.event_id = r.redacts "
|
||||
"WHERE e.event_id = ? "
|
||||
"LIMIT 1 "
|
||||
)
|
||||
|
||||
txn.execute(sql, (event_id,))
|
||||
|
||||
res = txn.fetchone()
|
||||
|
||||
if not res:
|
||||
return None
|
||||
|
||||
internal_metadata, js, redacted, rejected_reason = res
|
||||
|
||||
start_time = update_counter("select_event", start_time)
|
||||
|
||||
result = self._get_event_from_row_txn(
|
||||
txn, internal_metadata, js, redacted,
|
||||
events = self._get_events_txn(
|
||||
txn, [event_id],
|
||||
check_redacted=check_redacted,
|
||||
get_prev_content=get_prev_content,
|
||||
rejected_reason=rejected_reason,
|
||||
allow_rejected=allow_rejected,
|
||||
)
|
||||
self._get_event_cache.prefill(event_id, check_redacted, get_prev_content, result)
|
||||
|
||||
if allow_rejected or not rejected_reason:
|
||||
return result
|
||||
else:
|
||||
return None
|
||||
|
||||
def _fetch_events_txn(self, txn, events, check_redacted=True,
|
||||
get_prev_content=False, allow_rejected=False):
|
||||
if not events:
|
||||
return []
|
||||
return events[0] if events else None
|
||||
|
||||
def _get_events_from_cache(self, events, check_redacted, get_prev_content,
|
||||
allow_rejected):
|
||||
event_map = {}
|
||||
|
||||
for event_id in events:
|
||||
try:
|
||||
ret = self._get_event_cache.get(event_id, check_redacted, get_prev_content)
|
||||
ret = self._get_event_cache.get(
|
||||
event_id, check_redacted, get_prev_content
|
||||
)
|
||||
|
||||
if allow_rejected or not ret.rejected_reason:
|
||||
event_map[event_id] = ret
|
||||
@ -979,136 +943,82 @@ class SQLBaseStore(object):
|
||||
except KeyError:
|
||||
pass
|
||||
|
||||
missing_events = [
|
||||
e for e in events
|
||||
if e not in event_map
|
||||
]
|
||||
|
||||
if missing_events:
|
||||
sql = (
|
||||
"SELECT e.internal_metadata, e.json, r.redacts, rej.event_id "
|
||||
" FROM event_json as e"
|
||||
" LEFT JOIN rejections as rej USING (event_id)"
|
||||
" LEFT JOIN redactions as r ON e.event_id = r.redacts"
|
||||
" WHERE e.event_id IN (%s)"
|
||||
) % (",".join(["?"]*len(missing_events)),)
|
||||
|
||||
txn.execute(sql, missing_events)
|
||||
rows = txn.fetchall()
|
||||
|
||||
res = [
|
||||
self._get_event_from_row_txn(
|
||||
txn, row[0], row[1], row[2],
|
||||
check_redacted=check_redacted,
|
||||
get_prev_content=get_prev_content,
|
||||
rejected_reason=row[3],
|
||||
)
|
||||
for row in rows
|
||||
]
|
||||
|
||||
event_map.update({
|
||||
e.event_id: e
|
||||
for e in res if e
|
||||
})
|
||||
|
||||
for e in res:
|
||||
self._get_event_cache.prefill(
|
||||
e.event_id, check_redacted, get_prev_content, e
|
||||
)
|
||||
|
||||
return [
|
||||
event_map[e_id] for e_id in events
|
||||
if e_id in event_map and event_map[e_id]
|
||||
]
|
||||
return event_map
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def _fetch_events(self, events, check_redacted=True,
|
||||
def _fetch_events(self, txn, events, check_redacted=True,
|
||||
get_prev_content=False, allow_rejected=False):
|
||||
if not events:
|
||||
defer.returnValue([])
|
||||
defer.returnValue({})
|
||||
|
||||
event_map = {}
|
||||
rows = []
|
||||
N = 2
|
||||
for i in range(1 + len(events) / N):
|
||||
evs = events[i*N:(i + 1)*N]
|
||||
if not evs:
|
||||
break
|
||||
|
||||
for event_id in events:
|
||||
try:
|
||||
ret = self._get_event_cache.get(event_id, check_redacted, get_prev_content)
|
||||
|
||||
if allow_rejected or not ret.rejected_reason:
|
||||
event_map[event_id] = ret
|
||||
else:
|
||||
event_map[event_id] = None
|
||||
except KeyError:
|
||||
pass
|
||||
|
||||
missing_events = [
|
||||
e for e in events
|
||||
if e not in event_map
|
||||
]
|
||||
|
||||
if missing_events:
|
||||
sql = (
|
||||
"SELECT e.internal_metadata, e.json, r.redacts, rej.event_id "
|
||||
" FROM event_json as e"
|
||||
" LEFT JOIN rejections as rej USING (event_id)"
|
||||
" LEFT JOIN redactions as r ON e.event_id = r.redacts"
|
||||
" WHERE e.event_id IN (%s)"
|
||||
) % (",".join(["?"]*len(missing_events)),)
|
||||
) % (",".join(["?"]*len(evs)),)
|
||||
|
||||
rows = yield self._execute(
|
||||
"_fetch_events",
|
||||
None,
|
||||
sql,
|
||||
*missing_events
|
||||
if txn:
|
||||
txn.execute(sql, evs)
|
||||
rows.extend(txn.fetchall())
|
||||
else:
|
||||
res = yield self._execute("_fetch_events", None, sql, *evs)
|
||||
rows.extend(res)
|
||||
|
||||
res = []
|
||||
for row in rows:
|
||||
e = yield self._get_event_from_row(
|
||||
txn,
|
||||
row[0], row[1], row[2],
|
||||
check_redacted=check_redacted,
|
||||
get_prev_content=get_prev_content,
|
||||
rejected_reason=row[3],
|
||||
)
|
||||
res.append(e)
|
||||
|
||||
for e in res:
|
||||
self._get_event_cache.prefill(
|
||||
e.event_id, check_redacted, get_prev_content, e
|
||||
)
|
||||
|
||||
res_ds = [
|
||||
self._get_event_from_row(
|
||||
row[0], row[1], row[2],
|
||||
check_redacted=check_redacted,
|
||||
get_prev_content=get_prev_content,
|
||||
rejected_reason=row[3],
|
||||
)
|
||||
for row in rows
|
||||
]
|
||||
|
||||
res = yield defer.gatherResults(res_ds, consumeErrors=True)
|
||||
|
||||
event_map.update({
|
||||
e.event_id: e
|
||||
for e in res if e
|
||||
})
|
||||
|
||||
for e in res:
|
||||
self._get_event_cache.prefill(
|
||||
e.event_id, check_redacted, get_prev_content, e
|
||||
)
|
||||
|
||||
defer.returnValue([
|
||||
event_map[e_id] for e_id in events
|
||||
if e_id in event_map and event_map[e_id]
|
||||
])
|
||||
defer.returnValue({
|
||||
e.event_id: e
|
||||
for e in res if e
|
||||
})
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def _get_event_from_row(self, internal_metadata, js, redacted,
|
||||
def _get_event_from_row(self, txn, internal_metadata, js, redacted,
|
||||
check_redacted=True, get_prev_content=False,
|
||||
rejected_reason=None):
|
||||
|
||||
start_time = time.time() * 1000
|
||||
|
||||
def update_counter(desc, last_time):
|
||||
curr_time = self._get_event_counters.update(desc, last_time)
|
||||
sql_getevents_timer.inc_by(curr_time - last_time, desc)
|
||||
return curr_time
|
||||
|
||||
d = json.loads(js)
|
||||
start_time = update_counter("decode_json", start_time)
|
||||
|
||||
internal_metadata = json.loads(internal_metadata)
|
||||
start_time = update_counter("decode_internal", start_time)
|
||||
|
||||
def select(txn, *args, **kwargs):
|
||||
if txn:
|
||||
return self._simple_select_one_onecol_txn(txn, *args, **kwargs)
|
||||
else:
|
||||
return self._simple_select_one_onecol(
|
||||
*args,
|
||||
desc="_get_event_from_row", **kwargs
|
||||
)
|
||||
|
||||
def get_event(txn, *args, **kwargs):
|
||||
if txn:
|
||||
return self._get_event_txn(txn, *args, **kwargs)
|
||||
else:
|
||||
return self.get_event(*args, **kwargs)
|
||||
|
||||
if rejected_reason:
|
||||
rejected_reason = yield self._simple_select_one_onecol(
|
||||
desc="_get_event_from_row",
|
||||
rejected_reason = yield select(
|
||||
txn,
|
||||
table="rejections",
|
||||
keyvalues={"event_id": rejected_reason},
|
||||
retcol="reason",
|
||||
@ -1119,13 +1029,12 @@ class SQLBaseStore(object):
|
||||
internal_metadata_dict=internal_metadata,
|
||||
rejected_reason=rejected_reason,
|
||||
)
|
||||
start_time = update_counter("build_frozen_event", start_time)
|
||||
|
||||
if check_redacted and redacted:
|
||||
ev = prune_event(ev)
|
||||
|
||||
redaction_id = yield self._simple_select_one_onecol(
|
||||
desc="_get_event_from_row",
|
||||
redaction_id = yield select(
|
||||
txn,
|
||||
table="redactions",
|
||||
keyvalues={"redacts": ev.event_id},
|
||||
retcol="event_id",
|
||||
@ -1134,93 +1043,26 @@ class SQLBaseStore(object):
|
||||
ev.unsigned["redacted_by"] = redaction_id
|
||||
# Get the redaction event.
|
||||
|
||||
because = yield self.get_event_txn(
|
||||
because = yield get_event(
|
||||
txn,
|
||||
redaction_id,
|
||||
check_redacted=False
|
||||
)
|
||||
|
||||
if because:
|
||||
ev.unsigned["redacted_because"] = because
|
||||
start_time = update_counter("redact_event", start_time)
|
||||
|
||||
if get_prev_content and "replaces_state" in ev.unsigned:
|
||||
prev = yield self.get_event(
|
||||
prev = yield get_event(
|
||||
txn,
|
||||
ev.unsigned["replaces_state"],
|
||||
get_prev_content=False,
|
||||
)
|
||||
if prev:
|
||||
ev.unsigned["prev_content"] = prev.get_dict()["content"]
|
||||
start_time = update_counter("get_prev_content", start_time)
|
||||
|
||||
defer.returnValue(ev)
|
||||
|
||||
def _get_event_from_row_txn(self, txn, internal_metadata, js, redacted,
|
||||
check_redacted=True, get_prev_content=False,
|
||||
rejected_reason=None):
|
||||
|
||||
start_time = time.time() * 1000
|
||||
|
||||
def update_counter(desc, last_time):
|
||||
curr_time = self._get_event_counters.update(desc, last_time)
|
||||
sql_getevents_timer.inc_by(curr_time - last_time, desc)
|
||||
return curr_time
|
||||
|
||||
d = json.loads(js)
|
||||
start_time = update_counter("decode_json", start_time)
|
||||
|
||||
internal_metadata = json.loads(internal_metadata)
|
||||
start_time = update_counter("decode_internal", start_time)
|
||||
|
||||
if rejected_reason:
|
||||
rejected_reason = self._simple_select_one_onecol_txn(
|
||||
txn,
|
||||
table="rejections",
|
||||
keyvalues={"event_id": rejected_reason},
|
||||
retcol="reason",
|
||||
)
|
||||
|
||||
ev = FrozenEvent(
|
||||
d,
|
||||
internal_metadata_dict=internal_metadata,
|
||||
rejected_reason=rejected_reason,
|
||||
)
|
||||
start_time = update_counter("build_frozen_event", start_time)
|
||||
|
||||
if check_redacted and redacted:
|
||||
ev = prune_event(ev)
|
||||
|
||||
redaction_id = self._simple_select_one_onecol_txn(
|
||||
txn,
|
||||
table="redactions",
|
||||
keyvalues={"redacts": ev.event_id},
|
||||
retcol="event_id",
|
||||
)
|
||||
|
||||
ev.unsigned["redacted_by"] = redaction_id
|
||||
# Get the redaction event.
|
||||
|
||||
because = self._get_event_txn(
|
||||
txn,
|
||||
redaction_id,
|
||||
check_redacted=False
|
||||
)
|
||||
|
||||
if because:
|
||||
ev.unsigned["redacted_because"] = because
|
||||
start_time = update_counter("redact_event", start_time)
|
||||
|
||||
if get_prev_content and "replaces_state" in ev.unsigned:
|
||||
prev = self._get_event_txn(
|
||||
txn,
|
||||
ev.unsigned["replaces_state"],
|
||||
get_prev_content=False,
|
||||
)
|
||||
if prev:
|
||||
ev.unsigned["prev_content"] = prev.get_dict()["content"]
|
||||
start_time = update_counter("get_prev_content", start_time)
|
||||
|
||||
return ev
|
||||
|
||||
def _parse_events(self, rows):
|
||||
return self.runInteraction(
|
||||
"_parse_events", self._parse_events_txn, rows
|
||||
|
||||
@ -85,7 +85,7 @@ class StateStore(SQLBaseStore):
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def c(vals):
|
||||
vals[:] = yield self._fetch_events(vals, get_prev_content=False)
|
||||
vals[:] = yield self._get_events(vals, get_prev_content=False)
|
||||
|
||||
yield defer.gatherResults(
|
||||
[
|
||||
|
||||
@ -29,6 +29,34 @@ def unwrapFirstError(failure):
|
||||
return failure.value.subFailure
|
||||
|
||||
|
||||
def unwrap_deferred(d):
|
||||
"""Given a deferred that we know has completed, return its value or raise
|
||||
the failure as an exception
|
||||
"""
|
||||
if not d.called:
|
||||
raise RuntimeError("deferred has not finished")
|
||||
|
||||
res = []
|
||||
|
||||
def f(r):
|
||||
res.append(r)
|
||||
return r
|
||||
d.addCallback(f)
|
||||
|
||||
if res:
|
||||
return res[0]
|
||||
|
||||
def f(r):
|
||||
res.append(r)
|
||||
return r
|
||||
d.addErrback(f)
|
||||
|
||||
if res:
|
||||
res[0].raiseException()
|
||||
else:
|
||||
raise RuntimeError("deferred did not call callbacks")
|
||||
|
||||
|
||||
class Clock(object):
|
||||
"""A small utility that obtains current time-of-day so that time may be
|
||||
mocked during unit-tests.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user