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authorMiss Islington (bot) <31488909+miss-islington@users.noreply.github.com>2022-08-23 07:01:10 (GMT)
committerGitHub <noreply@github.com>2022-08-23 07:01:10 (GMT)
commit04e37850981bceaa31759c2673a945d3713ae7ae (patch)
tree0211f997e0e6f2ad39b2dafda30185c52c11bc61
parentdc6391705ed4934626f4119837190b994d90a7e1 (diff)
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[3.11] gh-96159: Fix significant performance degradation in logging.TimedRotat… (GH-96182) (GH-96196)
Co-authored-by: Duncan Grisby <duncan-github@grisby.org>
-rw-r--r--Lib/logging/handlers.py10
-rw-r--r--Misc/NEWS.d/next/Library/2022-08-22-18-42-17.gh-issue-96159.3bFU39.rst1
2 files changed, 8 insertions, 3 deletions
diff --git a/Lib/logging/handlers.py b/Lib/logging/handlers.py
index 78b7560..2bcab65 100644
--- a/Lib/logging/handlers.py
+++ b/Lib/logging/handlers.py
@@ -348,11 +348,15 @@ class TimedRotatingFileHandler(BaseRotatingHandler):
record is not used, as we are just comparing times, but it is needed so
the method signatures are the same
"""
- # See bpo-45401: Never rollover anything other than regular files
- if os.path.exists(self.baseFilename) and not os.path.isfile(self.baseFilename):
- return False
t = int(time.time())
if t >= self.rolloverAt:
+ # See #89564: Never rollover anything other than regular files
+ if os.path.exists(self.baseFilename) and not os.path.isfile(self.baseFilename):
+ # The file is not a regular file, so do not rollover, but do
+ # set the next rollover time to avoid repeated checks.
+ self.rolloverAt = self.computeRollover(t)
+ return False
+
return True
return False
diff --git a/Misc/NEWS.d/next/Library/2022-08-22-18-42-17.gh-issue-96159.3bFU39.rst b/Misc/NEWS.d/next/Library/2022-08-22-18-42-17.gh-issue-96159.3bFU39.rst
new file mode 100644
index 0000000..f64469e
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2022-08-22-18-42-17.gh-issue-96159.3bFU39.rst
@@ -0,0 +1 @@
+Fix a performance regression in logging TimedRotatingFileHandler. Only check for special files when the rollover time has passed.