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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/rest/media/v1/storage_provider.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/rest/media/v1/storage_provider.py')
-rw-r--r--synapse/rest/media/v1/storage_provider.py6
1 files changed, 4 insertions, 2 deletions
diff --git a/synapse/rest/media/v1/storage_provider.py b/synapse/rest/media/v1/storage_provider.py
index 7b9f8b4d79..5aa03031f6 100644
--- a/synapse/rest/media/v1/storage_provider.py
+++ b/synapse/rest/media/v1/storage_provider.py
@@ -17,9 +17,10 @@ import logging
 import os
 import shutil
 
-from twisted.internet import defer, threads
+from twisted.internet import defer
 
 from synapse.config._base import Config
+from synapse.util import logcontext
 from synapse.util.logcontext import run_in_background
 
 from .media_storage import FileResponder
@@ -120,7 +121,8 @@ class FileStorageProviderBackend(StorageProvider):
         if not os.path.exists(dirname):
             os.makedirs(dirname)
 
-        return threads.deferToThread(
+        return logcontext.defer_to_thread(
+            self.hs.get_reactor(),
             shutil.copyfile, primary_fname, backup_fname,
         )