Issues with rrdcache

Support
#1

II tried to read the php code and solve this issue myself, but I can’t figure it out. I will try to be brief:

LibreNMS user - I recently switched from a rrdcached sock to a localhost. So, it actually gets run as thus:

php ./weathermap.php --config configs//CheyenneCircuits.conf --base-href /plugins/Weathermap/ --chdir /opt/librenms/rrd --daemon 127.0.0.1:42217

You can see it is properly run as a daemon. Yet, still it complains that many rrd" had no valid data, according to WeatherMapDataSource_rrd" which they don’t, because my timeout is quite long - 1800 seconds. Now, if I restart rrdcached to flush everything to disk, it works fine for a minute.

Is not some manner of communication with rrdcached supposed to prevent this? I had no issues when I had a local file instead of 127.0.0.1. My apologies, I’m not good at php.

Note: latest git version, rrdcached 1.6

Thank you for your time.

#2

I’m also running into this issue. I’m seeing random data populated for link’s, when there’s no data the logs are showing “rrd had no valid data”.

#3

Are you using rrdcached?

#4

Yes, i’m using rrdcached

-Tycho

#5

In general, for “rrd had no valid data”, turn on --debug and you’ll see a lot more information about what data is being returned from rrdtool.

However, I don’t know where weathermap.php with --daemon --chdir etc comes from, but it isn’t part of the weathermap distribution! :slight_smile: Also, there’s nothing in the regular distribution to talk to a remote rrdcache server.