Comment 3 for bug 1714433

When I modify the time for the timeout, the instance is in a build state for a long time and then it become error, the log shows that
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api [-] Error calling get_filesystem_stats
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api Traceback (most recent call last):
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api File "/usr/lib/python2.7/site-packages/trove/guestagent/api.py", line 63, in _call
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api result = cctxt.call(self.context, method_name, **kwargs)
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/client.py", line 157, in call
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api retry=self.retry)
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api File "/usr/lib/python2.7/site-packages/oslo_messaging/transport.py", line 90, in _send
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api timeout=timeout, retry=retry)
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 470, in send
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api retry=retry)
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 459, in _send
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api result = self._waiter.wait(msg_id, timeout)
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 342, in wait
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api message = self.waiters.get(msg_id, timeout=timeout)
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 244, in get
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api 'to message ID %s' % msg_id)
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api MessagingTimeout: Timed out waiting for a reply to message ID d25c3687071d40fba5b40f5d3308b3ed
2017-09-01 09:32:59.562 2135 ERROR trove.guestagent.api
2017-09-01 09:32:59.563 2135 ERROR trove.instance.models [-] An error occurred communicating with the guest: Timed out waiting for a reply to message ID d25c3687071d40fba5b40f5d3308b3ed.

could you enlighten me on the specific steps needed for further debugging?