mgr/dashboard: empty list of fs clients with no mds

Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com>
Fixes: https://tracker.ceph.com/issues/61708

diff --git a/src/pybind/mgr/dashboard/controllers/cephfs.py b/src/pybind/mgr/dashboard/controllers/cephfs.py
index 7b7589d423abde88a2cc313956ddab98891470b2..0c7b0470aee4b28e3709b878239ce5ff5bbf742f 100644 (file)
--- a/src/pybind/mgr/dashboard/controllers/cephfs.py
+++ b/src/pybind/mgr/dashboard/controllers/cephfs.py
@@ -503,7 +503,11 @@ class CephFSClients(object):
 
     @ViewCache()
     def get(self):
-        return CephService.send_command('mds', 'session ls', srv_spec='{0}:0'.format(self.fscid))
+        try:
+            ret = CephService.send_command('mds', 'session ls', srv_spec='{0}:0'.format(self.fscid))
+        except RuntimeError:
+            ret = []
+        return ret
 
 
 @UIRouter('/cephfs', Scope.CEPHFS)