Try to handle multiple connections better. The session database is a hot spot. When multiple requests (e.g. 20) come in at the same time session database contention can get great. The original code didn't retry session database access when the open failed. This resulted in errors at the client. The second pass delayed 0.01 seconds and retried. It was better but we still had multiple second stalls. I think the first request got in, everybody else backed up and then retried at the same time. Again they stepped on each other. With logging I would see many counters go all the way to low single digits or to -1 indicating falure. This pass uses randomint to generate delays from 0-.125 seconds in 5ms increments. This performs better in testing. I rarely saw a counter less than 13 (2 failed retries). Current logging starts after 6 failures and counts down until success or failure.

roundup.anypy package - Python version compatibility layer
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Roundup currently supports Python 2.3 to 2.6; however, some modules
have been introduced, while others have been deprecated.  The modules
in this package provide the functionalities which are used by Roundup

- adapting the most recent Python usage
- using new built-in functionality
- avoiding deprecation warnings

Use the modules in this package to preserve Roundup's compatibility.

# vim: si