bug #2434: getting 503 errors from S3

We are seeing uploads failing with what appears to be an HTTP_503 error.
I'm not positive about this, but this change should help by:

 * printing the actual error code we hit upon a failure
 * doing a retry when we get a 503 response

Change-Id: I98e24e4c277a41db295dc916a3af3ca201c69c74

1 files changed, 5 insertions, 1 deletions

diff --git a/linaro-cp.py b/linaro-cp.py
index 14dd6d8..9dfa919 100755
--- a/linaro-cp.py
+++ b/linaro-cp.py
@@ -47,8 +47,12 @@ class API_v1(object):
                 return repr(e)
 
         code = self.curl.getinfo(pycurl.RESPONSE_CODE)
+        if code == 503 and retry_count > 0:
+                print('503 failure for %s, retrying in 2 seconds' % url)
+                time.sleep(2)
+                return self._upload_data(url, data, headers, retry_count - 1)
         if code not in (200, 201):
-            return response.getvalue()
+            return 'HTTP_%d: %s' % (code, response.getvalue())
 
     def upload_file(self, url, filename):
         data = [