I deployed a new version of the jsub command at 2017-10-05T22:42Z. The major change was porting the script from Python2 to Python3. Unfortunately I did not test all code paths with the new script. When invoked as `jstart` or `jsub -continuous ...` it would fail with an error [0]:

Traceback (most recent call last): File "/usr/bin/jstart", line 662, in <module> main() File "/usr/bin/jstart", line 654, in main (out, err) = proc.communicate(qsub_stdin) File "/usr/lib/python3.4/subprocess.py", line 960, in communicate stdout, stderr = self._communicate(input, endtime, timeout) File "/usr/lib/python3.4/subprocess.py", line 1602, in _communicate input_view = memoryview(self._input) TypeError: memoryview: str object does not have the buffer interface

At 2017-10-06T15:33Z I deployed a fix for this problem. `jstart` and `jsub -continuous ...` are now working again. I apologize for the interruption of service. I'm going to try and add an automated test for this code path to help catch any similar errors in the future.

[0]: https://phabricator.wikimedia.org/T177614

Bryan