mod_http_admin_api: metrics: Filter out a value that is commonly nan at startup
The upload bytes count is typically nan at startup, which cannot legally be
encoded in JSON.
I haven't assessed whether any other metrics might emit nan under other
circumstances, but this fixes the most visible issue right now.
--- a/mod_http_admin_api/mod_http_admin_api.lua Fri Jan 12 18:21:08 2024 +0000
+++ b/mod_http_admin_api/mod_http_admin_api.lua Sat Jan 13 12:03:15 2024 +0000
@@ -748,7 +748,7 @@
for _, metric in mf:iter_metrics() do
sum = sum + metric.value;
end
- return sum;
+ return (sum == sum) and sum or nil; -- Filter out nan
end
local function get_server_metrics(event)