Hello
I have installed LibreNMS for the first time and most things work, except the latency graph which shows combined loss, min/avg and max latency (on page device/1/latency)
This would be very neat if that graph can work. I have tried using smokeping which works, but it creates several separate graphs. I would love to have to have the Latency performance graph working.
Any idea what can be wrong and where I can start looking to resolve this?
Nobody else experiencing this ? I have reinstalled on three separate new servers and same thing every time. All graphs are there except latency tab has nothing - as per screenshot.
Screenshot 2020-06-10 at 08.31.02|690x227
It seems as though no data is being logged in device_perf.
Run ./poller.php -d -m core -h <hostname> and pastebin the output.
Hi murrant
Thanx for replying so soon.
Not sure if I should use -h as well and specify a hostname as the command you provided gives error as per pastebin : https://pastebin.com/embed_js/UinigtHS
hah, yeah, you need -h
Hi there,
Here you go - I just ran it against localhost but if you want to see on any of the other servers please let me know.
Try these queries. Let me know the output 
INSERT IGNORE INTO `device_perf` (`xmt`,`rcv`,`loss`,`min`,`max`,`avg`,`device_id`,`timestamp`,`debug`) VALUES (1,2,3,0.01,0.02,0.03,22,NOW(),"[]");
INSERT INTO `device_perf` (`xmt`,`rcv`,`loss`,`min`,`max`,`avg`,`device_id`,`timestamp`,`debug`) VALUES (3,2,1,0.03,0.02,0.01,22,NOW(),"[]");
SELECT * FROM device_perf WHERE device_id=22;
Good Morning,
I have done as you requested, herewith output of the select statement which I sent to a txt file.