Hi, I recently upgraded a cluster to 13.2.5 and right now the RestFul API won't start due to this stacktrace: 2019-04-15 11:32:18.632 7f8797cb6700 0 mgr[restful] Traceback (most recent call last): File "/usr/lib64/ceph/mgr/restful/module.py", line 254, in serve self._serve() File "/usr/lib64/ceph/mgr/restful/module.py", line 336, in _serve self.server.serve_forever() File "/usr/lib/python2.7/site-packages/werkzeug/serving.py", line 436, in serve_forever HTTPServer.serve_forever(self) File "/usr/lib64/python2.7/SocketServer.py", line 236, in serve_forever poll_interval) File "/usr/lib64/python2.7/SocketServer.py", line 155, in _eintr_retry return func(*args) ValueError: filedescriptor out of range in select() Searching on the internet I found that it might be related to Python's SocketServer, but I could not confirm that yet. I also created an issue: http://tracker.ceph.com/issues/39292 Has anybody seen this before? Running: - Mimic 13.2.5 - CentOS 7 - 2000 OSDs Wido _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com