One of our Flask app is down for 10 hours now, and I don't have too much idea what can cause the problem. There is nothing in the error log and I didn't add any new code. It just stopped working and asking for user authentication. However the server log is full with these kind of messages:
2016-09-06 07:53:49 Python version: 3.4.3 (default, Oct 14 2015, 20:31:36) [GCC 4.8.4]
2016-09-06 07:53:49 *** Python threads support is disabled. You can enable it with --enable-threads ***
2016-09-06 07:53:49 Python main interpreter initialized at 0x1417b40
2016-09-06 07:53:49 your server socket listen backlog is limited to 100 connections
2016-09-06 07:53:49 your mercy for graceful operations on workers is 60 seconds
2016-09-06 07:53:49 setting request body buffering size to 65536 bytes
2016-09-06 07:53:49 mapped 2671616 bytes (2609 KB) for 15 cores
2016-09-06 07:53:49 *** Operational MODE: preforking ***
2016-09-06 07:53:49 initialized 245 metrics
2016-09-06 07:53:49 WSGI app 0 (mountpoint='') ready in 0 seconds on interpreter 0x1417b40 pid: 18144 (default app)
2016-09-06 07:53:49 *** uWSGI is running in multiple interpreter mode ***
2016-09-06 07:53:49 spawned uWSGI master process (pid: 18144)
2016-09-06 07:53:49 spawned uWSGI worker 1 (pid: 18146, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 1
2016-09-06 07:53:49 spawned uWSGI worker 2 (pid: 18149, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 2
2016-09-06 07:53:49 spawned uWSGI worker 3 (pid: 18152, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 3
2016-09-06 07:53:49 spawned uWSGI worker 4 (pid: 18155, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 4
2016-09-06 07:53:49 spawned uWSGI worker 5 (pid: 18158, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 5
2016-09-06 07:53:49 spawned uWSGI worker 6 (pid: 18161, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 6
2016-09-06 07:53:49 spawned uWSGI worker 7 (pid: 18164, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 7
2016-09-06 07:53:49 spawned uWSGI worker 8 (pid: 18167, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 8
2016-09-06 07:53:49 spawned uWSGI worker 9 (pid: 18170, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 9
2016-09-06 07:53:49 spawned uWSGI worker 10 (pid: 18173, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 10
2016-09-06 07:53:49 spawned uWSGI worker 11 (pid: 18176, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 11
2016-09-06 07:53:49 spawned uWSGI worker 12 (pid: 18179, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 12
2016-09-06 07:53:49 spawned uWSGI worker 13 (pid: 18182, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 13
2016-09-06 07:53:49 spawned uWSGI worker 14 (pid: 18185, cores: 1)
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 14
2016-09-06 07:53:49 spawned uWSGI worker 15 (pid: 18188, cores: 1)
2016-09-06 07:53:49 metrics collector thread started
2016-09-06 07:53:49 spawned 2 offload threads for uWSGI worker 15
2016-09-06 07:53:50 announcing my loyalty to the Emperor...
2016-09-06 07:53:55 announcing my loyalty to the Emperor...
Is it something that I can fix?