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Count and loop

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This commit is contained in:
Erik Johnston 2015-05-14 15:40:21 +01:00
parent 96c5b9f87c
commit 142934084a
2 changed files with 32 additions and 34 deletions
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2
synapse/storage/_base.py
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@ -301,7 +301,7 @@ class SQLBaseStore(object):
self._event_fetch_lock = threading.Lock()
self._event_fetch_list = []
self._event_fetch_ongoing = False
self._event_fetch_ongoing = 0
self.database_engine = hs.database_engine

64
synapse/storage/events.py
View File

@ -506,41 +506,39 @@ class EventsStore(SQLBaseStore):
def do_fetch(txn):
event_list = []
try:
with self._event_fetch_lock:
event_list = self._event_fetch_list
self._event_fetch_list = []
while True:
try:
with self._event_fetch_lock:
event_list = self._event_fetch_list
self._event_fetch_list = []
if not event_list:
return
if not event_list:
return
event_id_lists = zip(*event_list)[0]
event_ids = [
item for sublist in event_id_lists for item in sublist
]
rows = self._fetch_event_rows(txn, event_ids)
event_id_lists = zip(*event_list)[0]
event_ids = [
item for sublist in event_id_lists for item in sublist
]
rows = self._fetch_event_rows(txn, event_ids)
row_dict = {
r["event_id"]: r
for r in rows
}
row_dict = {
r["event_id"]: r
for r in rows
}
for ids, d in event_list:
d.callback(
[
row_dict[i] for i in ids
if i in row_dict
]
)
except Exception as e:
for _, d in event_list:
try:
reactor.callFromThread(d.errback, e)
except:
pass
finally:
with self._event_fetch_lock:
self._event_fetch_ongoing = False
for ids, d in event_list:
d.callback(
[
row_dict[i] for i in ids
if i in row_dict
]
)
except Exception as e:
for _, d in event_list:
try:
reactor.callFromThread(d.errback, e)
except:
pass
def cb(rows):
return defer.gatherResults([
@ -561,12 +559,12 @@ class EventsStore(SQLBaseStore):
(events, d)
)
if not self._event_fetch_ongoing:
if self._event_fetch_ongoing < 3:
self._event_fetch_ongoing += 1
self.runInteraction(
"do_fetch",
do_fetch
)
self._event_fetch_ongoing = True
res = yield d