WorldMap Suddenly Blank (Solved)

Daniel_Schmidt · 1 September 2017 19:47

My WorldMap is suddenly blank - as in nothing - a white box with no tiles in it. And, I can pull a streetmap tile in the web browser - I am not banned, I just don’t get the world map anymore.

Now, we did set disabled=0 on about 400 devices around the time it broke, but we tried undoing it to see if it would restore to no avail. I’m not sure how that would break it.

Any hints as to which php to check would be appreciated, thank you for your time.

$ ./validate.php

Component	Version
LibreNMS	1.31.03-4-g4c3562e
DB Schema	205
PHP	7.0.22-0ubuntu0.16.04.1
MySQL	10.0.31-MariaDB-0ubuntu0.16.04.2
RRDTool	1.6.0
SNMP	NET-SNMP 5.7.3

====================================

[OK] Database connection successful
[OK] Database schema correct
[WARN] Your local git contains modified files, this could prevent automatic updates.
Modified files:
includes/snmptrap/linkDown.inc.php
includes/snmptrap/linkUp.inc.php
snmptrap.php
[WARN] Some devices have not been polled in the last 5 minutes.
You may have performance issues. Check your poll log and see: http://docs.librenms.org/Support/Performance/
( yada yada, I’ve got rrdcached)
$

Kevin_Krumm · 1 September 2017 20:53

can you post a screenshot?

Kevin_Krumm · 1 September 2017 20:57

Also not sure what you are referring to here?

Daniel_Schmidt · 1 September 2017 22:01

Thank you kindly for your response. The SQL in Libre is fairly straight forward. When we have a large number of operations to do, we simply pull up mysql and do so from there as it is much quicker. (At least for simple operations)

Here is the picture of our worldmap:

Kevin_Krumm · 2 September 2017 12:34

are any of the other pages loading for you?

Try increasing memory in php.ini

laf · 3 September 2017 13:54

Open your javascript console and see if any errors show up?

Daniel_Schmidt · 3 September 2017 14:46

Thanks, I will try increasing the php memory as soon as I can. All other pages load, everything else is working great.

The only JS error in I see in Browser Console is an info message:

Object { specialPage: false, hasHTTPS: true, inMajorTrackingNetwork: false, totalBlocked: 0, hasObscureTracker: false, domain: “nacho.wyo.gov”, isaMajorTrackingNetwork: 0 }

tabManager.js:107:17

laf · 3 September 2017 14:58

Give php max mem a shot then as that message isn’t from LibreNMS.

Daniel_Schmidt · 5 September 2017 16:45

I set memory_limit = 1024M in /etc/php/7.0/apache2/php.ini and restarted apache. Unfortunately, this did not work. I see nothing relevant in error.log. My apologies, my php/js skills are not what they should be.

Of note, I do see JS errors now, a couple deprecation errors and:

SyntaxError: expected expression, got ','[Learn More]  jquery.min.js:246:35
	globalEval/< https://nacho.wyo.gov/js/jquery.min.js:4:4987
	globalEval https://nacho.wyo.gov/js/jquery.min.js:4:4961
	domManip https://nacho.wyo.gov/js/jquery.min.js:5:28158
	append https://nacho.wyo.gov/js/jquery.min.js:5:25576
	html/< https://nacho.wyo.gov/js/jquery.min.js:5:27114
	access https://nacho.wyo.gov/js/jquery.min.js:4:6688
	html https://nacho.wyo.gov/js/jquery.min.js:5:26699
	success https://nacho.wyo.gov/:842:21
	c https://nacho.wyo.gov/js/jquery.min.js:4:26031
	fireWith https://nacho.wyo.gov/js/jquery.min.js:4:26840
	k https://nacho.wyo.gov/js/jquery.min.js:6:14256
	r https://nacho.wyo.gov/js/jquery.min.js:6:18646

Thank you for your time

laf · 5 September 2017 18:11

Can you screenshot the full console?

Daniel_Schmidt · 5 September 2017 18:26

The deprecated messages didn’t come back

aherbach88 · 6 September 2017 23:07

I’m getting the same issue, here’s my console output:

js_error

aherbach88 · 6 September 2017 23:33

I solved this for myself. It was a space in one of my locations.

Daniel_Schmidt · 7 September 2017 00:40

Hum… need to think of sql syntax to search locations…

laf · 7 September 2017 08:07

If that’s the same issue as @Daniel_Schmidt then the VM1354:586 is a clickable link to where the issue is - maybe you should try a different browser to see if that link is shown?

Daniel_Schmidt · 7 September 2017 15:04

Yes sir… that were a stupid mistake. Sorry for taking your time. For documentation:

In chrome, as Laf says, you can click on the link and it will show you which device you screwed up. Fix that snmp string, discover it again, and it is fixed.

Thank you all for your assistance.

laf · 7 September 2017 19:46

Can you be more specific in what the issue was? If it’s something we need to fix we’d like to.

Daniel_Schmidt · 8 September 2017 00:36

Error checking on the lat,long. Something very simple, like:

If (len(lat_long.split(’,’)) != 2):
log_error(“Device %s has bad snmp lat/long string, you moron” % idiot_device)
continue
Check for spaces, alpha characters and whatnot and generate a log entry instead of crash. (Not that I’m telling you how to fix it, I’m sure you can think of something better than I can)

Thanks

Daniel_Schmidt · 8 September 2017 20:31

If I recreate the error, it looks as such:

var marker = L.marker(new L.LatLng(, ), {title: tooltip, icon: greenMarker, zIndexOffset: 0});

It does not like empty L.LatLng(, ), hence causing the whole map not to load

ManOfLard · 25 January 2018 12:45

Just confirming I’ve seen this - due to a typo in the SNMP location that LibreNMS attempted to interpret as a Lat/Long:

snmp-server location “Your location here [12.34,56.78,9]”

If the third term is there it causes the map to fail to load with exactly the error that @Daniel_Schmidt describes.

Naturally if LibreNMS utilised DNS LOC records this wouldn’t be an issue (and I could update all my locations in one central file instead of having to hit hundreds of devices individually)