add some logging for the keyring queue

why is it so damn slow?
This commit is contained in:
Richard van der Hoff 2018-09-06 18:51:06 +01:00
parent 4f8baab0c4
commit 806964b5de

View File

@ -40,6 +40,7 @@ from synapse.api.errors import Codes, SynapseError
from synapse.crypto.keyclient import fetch_server_key
from synapse.util import logcontext, unwrapFirstError
from synapse.util.logcontext import (
LoggingContext,
PreserveLoggingContext,
preserve_fn,
run_in_background,
@ -216,23 +217,34 @@ class Keyring(object):
servers have completed. Follows the synapse rules of logcontext
preservation.
"""
loop_count = 1
while True:
wait_on = [
self.key_downloads[server_name]
(server_name, self.key_downloads[server_name])
for server_name in server_names
if server_name in self.key_downloads
]
if wait_on:
with PreserveLoggingContext():
yield defer.DeferredList(wait_on)
else:
if not wait_on:
break
logger.info(
"Waiting for existing lookups for %s to complete [loop %i]",
[w[0] for w in wait_on], loop_count,
)
with PreserveLoggingContext():
yield defer.DeferredList((w[1] for w in wait_on))
loop_count += 1
ctx = LoggingContext.current_context()
def rm(r, server_name_):
with PreserveLoggingContext(ctx):
logger.debug("Releasing key lookup lock on %s", server_name_)
self.key_downloads.pop(server_name_, None)
return r
for server_name, deferred in server_to_deferred.items():
logger.debug("Got key lookup lock on %s", server_name)
self.key_downloads[server_name] = deferred
deferred.addBoth(rm, server_name)