Fix logging issue when services stop on py261.13.1.rc21.13.1

On older versions of python 2.6, exceptions would be spewed to the error
log whenever a service would stop.  This gets magnified by the
container-updater which seems to do it with every pass.  This catches
and squelches the error.

Change-Id: I5944c1620c62cf0868b70dae7d7e2acd56bf8211
Closes-Bug: #1306027

1 files changed, 6 insertions, 2 deletions

diff --git a/swift/common/utils.py b/swift/common/utils.py
index 5281be941..8a840ae00 100644
--- a/swift/common/utils.py
+++ b/swift/common/utils.py
@@ -856,8 +856,12 @@ class LoggingHandlerWeakRef(weakref.ref):
     """
     def close(self):
         referent = self()
-        if referent:
-            referent.close()
+        try:
+            if referent:
+                referent.close()
+        except KeyError:
+            # This is to catch an issue with old py2.6 versions
+            pass
 
     def flush(self):
         referent = self()