Dear Solly:
I cobbled together a working prototype of Guru Meditation for Swift
just to see how it worked. I did not use Oslo classes, but used the
code from Dan's prototype and from your Nova review. Here's the
Gerrit link:
https://review.openstack.org/70513
Looking at the collected tracebacks, most of all they seem singularly
useless. No matter how loaded the process is, they always show
something like:
File "/usr/lib/python2.6/site-packages/eventlet/hubs/hub.py", line 226, in run
self.wait(sleep_time)
File "/usr/lib/python2.6/site-packages/eventlet/hubs/poll.py", line 84, in
wait
presult = self.do_poll(seconds)
File "/usr/lib/python2.6/site-packages/eventlet/hubs/poll.py", line 73, in
do_poll
return self.poll.poll(int(seconds * 1000.0))
File "/usr/lib/python2.6/site-packages/swift/common/daemon.py", line 103, in
<lambda>
*args))
File "/usr/lib/python2.6/site-packages/swift/common/guru_meditation.py", line
79, in signal_handler
dump_threads(gthr_model, report_fp)
File "/usr/lib/python2.6/site-packages/swift/common/guru_meditation.py", line
53, in dump_threads
thread.dump(report_fp)
File "/usr/lib/python2.6/site-packages/swift/common/guru_meditation.py", line
29, in dump
traceback.print_stack(self.stack, file=report_fp)
The same is true for native and gree threads: they all seem to be
anchored in he lambda that passes parameters to the signal handler,
so they show nothing of value.
So, my question is: did you look at traces in Nova and if yes,
did you catch anything? If yes, where is the final code that works?
-- Pete
_______________________________________________
OpenStack-dev mailing list
OpenStack-dev@lists.openstack.org
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
