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authorRichard van der Hoff <1389908+richvdh@users.noreply.github.com>2018-10-23 13:12:32 +0100
committerGitHub <noreply@github.com>2018-10-23 13:12:32 +0100
commit5c445114d356c9c23b99f0a2c4246be983a38b69 (patch)
tree81a82e1a752e1e8fa9abeb7ad7cf72841c75adda /synapse/handlers/auth.py
parentMerge pull request #3698 from spantaleev/add-matrix-docker-ansible-deploy (diff)
downloadsynapse-5c445114d356c9c23b99f0a2c4246be983a38b69.tar.xz
Correctly account for cpu usage by background threads (#4074)
Wrap calls to deferToThread() in a thing which uses a child logcontext to
attribute CPU usage to the right request.

While we're in the area, remove the logcontext_tracer stuff, which is never
used, and afaik doesn't work.

Fixes #4064
Diffstat (limited to 'synapse/handlers/auth.py')
-rw-r--r--synapse/handlers/auth.py18
1 files changed, 4 insertions, 14 deletions
diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py
index 2a5eab124f..329e3c7d71 100644
--- a/synapse/handlers/auth.py
+++ b/synapse/handlers/auth.py
@@ -22,7 +22,7 @@ import bcrypt
 import pymacaroons
 from canonicaljson import json
 
-from twisted.internet import defer, threads
+from twisted.internet import defer
 from twisted.web.client import PartialDownloadError
 
 import synapse.util.stringutils as stringutils
@@ -37,8 +37,8 @@ from synapse.api.errors import (
 )
 from synapse.module_api import ModuleApi
 from synapse.types import UserID
+from synapse.util import logcontext
 from synapse.util.caches.expiringcache import ExpiringCache
-from synapse.util.logcontext import make_deferred_yieldable
 
 from ._base import BaseHandler
 
@@ -884,11 +884,7 @@ class AuthHandler(BaseHandler):
                 bcrypt.gensalt(self.bcrypt_rounds),
             ).decode('ascii')
 
-        return make_deferred_yieldable(
-            threads.deferToThreadPool(
-                self.hs.get_reactor(), self.hs.get_reactor().getThreadPool(), _do_hash
-            ),
-        )
+        return logcontext.defer_to_thread(self.hs.get_reactor(), _do_hash)
 
     def validate_hash(self, password, stored_hash):
         """Validates that self.hash(password) == stored_hash.
@@ -913,13 +909,7 @@ class AuthHandler(BaseHandler):
             if not isinstance(stored_hash, bytes):
                 stored_hash = stored_hash.encode('ascii')
 
-            return make_deferred_yieldable(
-                threads.deferToThreadPool(
-                    self.hs.get_reactor(),
-                    self.hs.get_reactor().getThreadPool(),
-                    _do_validate_hash,
-                ),
-            )
+            return logcontext.defer_to_thread(self.hs.get_reactor(), _do_validate_hash)
         else:
             return defer.succeed(False)