From 7da4868b370d9df56cebf0d40ef8a8751939a499 Mon Sep 17 00:00:00 2001
From: Vitaliy Filippov <vitalif@yourcmc.ru>
Date: Fri, 24 Nov 2023 01:05:21 +0300
Subject: [PATCH] Fix monitor statistics aggregation in case of empty
 /osd/stats keys

---
 mon/mon.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mon/mon.js b/mon/mon.js
index 8ecc23ce..0c0bd4fd 100644
--- a/mon/mon.js
+++ b/mon/mon.js
@@ -1498,7 +1498,7 @@ class Mon
     {
         const zero_stats = { op: { bps: 0n, iops: 0n, lat: 0n }, subop: { iops: 0n, lat: 0n }, recovery: { bps: 0n, iops: 0n } };
         const diff = { op_stats: {}, subop_stats: {}, recovery_stats: {}, inode_stats: {} };
-        if (!st || !st.time || !prev || prev.time >= st.time)
+        if (!st || !st.time || !prev || !prev.time || prev.time >= st.time)
         {
             return prev_diff || diff;
         }