Monitoring graph > NTP produces error

[MikeV7896]

When I go to the monitoring graphs, then select "NTP", when I update the graph I get this error:

Error: SyntaxError: Unexpected token W in JSON at position 1

Additionally, there's a crash report (I've submitted two over two days, IPs below)

v4: 73.171.116.x
v6 WAN: 2001:558:6036:61:xx:x

I don't think it would come from the v6 LAN, but if you can't find from the v6 WAN, let me know and I'll provide the LAN address.

I did not have this issue with 2.3.1, so not sure if something changed in the RRD data between versions, or if there's a new issue.

[JorgeOliveira]

Code needs protection around:

			$obj[$ds_key_right_adjusted]['min'] = min($stats);
			$obj[$ds_key_right_adjusted]['max'] = max($stats);
			$obj[$ds_key_right_adjusted]['avg'] = array_sum($stats) / count($stats);
			$obj[$ds_key_right_adjusted]['values'] = $data;
			$obj[$ds_key_right_adjusted]['raw'] = $raw_data;

and:

			$obj[$ds_key_left_adjusted]['min'] = min($stats);
			$obj[$ds_key_left_adjusted]['max'] = max($stats);
			$obj[$ds_key_left_adjusted]['avg'] = array_sum($stats) / count($stats);
			$obj[$ds_key_left_adjusted]['values'] = $data;
			$obj[$ds_key_left_adjusted]['raw'] = $raw_data;

in /usr/local/www/rrd_fetch_json.php

A quick workaround would be:

			if(count($stats)) {

				// the block...

			}

Around blocks at lines 316-320 and 607-611.

This causes graphs without stats to be blank but gets rid of the nasty crash. I am sure someone could come up with a better fix.

[jdillard]

Thanks guys! This is fixed and will be in 2.3.2: https://github.com/pfsense/FreeBSD-ports/commit/4c3d8e6bdef27b5c601954b63f8a165247f77425