From f5433792ecb0d08cc4a845336b50651bc6909f4a Mon Sep 17 00:00:00 2001
From: Patrick Donnelly <pdonnell@redhat.com>
Date: Wed, 24 Apr 2024 16:14:31 -0400
Subject: [PATCH] qa: translate empty output from rank_tell to empty dict

Not all commands return JSON, like `dirfrag split`.

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
---
 qa/tasks/cephfs/filesystem.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/qa/tasks/cephfs/filesystem.py b/qa/tasks/cephfs/filesystem.py
index 97c87da6e8a..20725f1198b 100644
--- a/qa/tasks/cephfs/filesystem.py
+++ b/qa/tasks/cephfs/filesystem.py
@@ -1354,6 +1354,9 @@ class Filesystem(MDSCluster):
         kwargs.pop('status', None) # not useful
         try:
             out = self.get_ceph_cmd_stdout("tell", f"mds.{mds_id}", *args, **kwargs)
+            out = out.strip()
+            if len(out) == 0:
+                return {}
             return json.loads(out)
         except json.decoder.JSONDecodeError:
             log.error("could not decode: {}".format(out))
-- 
2.47.3