rietveld: retry more transient errors.

rietveld.py

 # coding: utf-8
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 """Defines class Rietveld to easily access a rietveld instance.
 
 Security implications:
 
 The following hypothesis are made:
 - Rietveld enforces:
@@ skipping 423 matching lines @@
             # The idea here is to retry if the error isn't permanent.
             # Unfortunately, there are so many different possible errors,
             # that we end up enumerating those that are known to us to be
             # transient.
             # The reason can be a string or another exception, e.g.,
             # socket.error or whatever else.
             reason_as_str = str(e.reason)
             for retry_anyway in (
                 'Name or service not known',
                 'EOF occurred in violation of protocol',
-                'timed out'):
+                'timed out',
+                # See http://crbug.com/601260.
+                'urlopen error [Errno 10060] A connection attempt failed',
+                'urlopen error [Errno 104] Connection reset by peer',
+            ):
               if retry_anyway in reason_as_str:
                 return True
             return False  # Assume permanent otherwise.
           if not is_transient():
             raise
         except socket.error, e:
           if retry >= (self._maxtries - 1):
             raise
           if not 'timed out' in str(e):
             raise
@@ skipping 289 matching lines @@
       self, issue, patchset, reason, clobber, revision, builders_and_tests,
       master=None, category='cq'):
     logging.info('ReadOnlyRietveld: triggering try jobs %r for issue %d' %
         (builders_and_tests, issue))
 
   def trigger_distributed_try_jobs(  # pylint:disable=R0201
       self, issue, patchset, reason, clobber, revision, masters,
       category='cq'):
     logging.info('ReadOnlyRietveld: triggering try jobs %r for issue %d' %
         (masters, issue))