1 Minute polling for Observium, quite an interesting and useful feature if you ask me. Especially with large capacity interfaces such as 25\/40\/100gbit interfaces, there’s tiny differences which could be interesting to spot, and you just can’t see those when you are using 5 minute polling. Another interesting used case for example are your uplinks, and your core links in your network.<\/p>\n
By default Observium is not setup to do this, and it requires a couple of changes. Now luckily, it’s not that hard to change this, as the configuration settings for the RRDs are a bit hidden, but setup in such a way, that you can actually change this.<\/p>\n
First before we get into the details on how to actually do this there are a couple of things you’ll need\/want to know:<\/p>\n
N E E D\u00a0\u00a0\u00a0T O\u00a0\u00a0\u00a0 K N O W :<\/b><\/span><\/p>\n Configuration<\/b> In the default configuration thats deployed once you have downloaded it, the RRD settings are configured for:<\/p>\n Now these settings are perfectly acceptable for me, except the first one ofcourse. We’ll want that to change to 1 minute.<\/p>\n You’ll need to make changes in 2 places:<\/p>\n Your configuration is stored in, and you can lookup them up in the file \/opt\/observium\/includes\/defaults.inc.php<\/strong><\/p>\n It looks like this:<\/p>\n Now you could modify the RRD settings in this file, but that’s not really helping if the default settings get adjusted when you upgrade your Observium instance. So change it in the file \/opt\/observium\/config.php<\/strong><\/p>\n Change 2 things in that piece of text:<\/p>\n Once this has been changed, change your cronjob (\/etc\/cron.d\/observium<\/strong>) to run poller-wrapper \/ poller every minute<\/p>\n That should be it! Enjoy your 1 minute resolution in Observium!<\/p>\n","protected":false},"excerpt":{"rendered":" 1 Minute polling for Observium, quite an interesting and useful feature if you ask me. Especially with large capacity interfaces such as 25\/40\/100gbit interfaces, there’s tiny differences which could be interesting to spot, and you just can’t see those when you are using 5 minute polling. Another interesting used case for example are your uplinks, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.maartenmoerman.nl\/index.php?rest_route=\/wp\/v2\/posts\/674"}],"collection":[{"href":"https:\/\/www.maartenmoerman.nl\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.maartenmoerman.nl\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.maartenmoerman.nl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.maartenmoerman.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=674"}],"version-history":[{"count":13,"href":"https:\/\/www.maartenmoerman.nl\/index.php?rest_route=\/wp\/v2\/posts\/674\/revisions"}],"predecessor-version":[{"id":687,"href":"https:\/\/www.maartenmoerman.nl\/index.php?rest_route=\/wp\/v2\/posts\/674\/revisions\/687"}],"wp:attachment":[{"href":"https:\/\/www.maartenmoerman.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.maartenmoerman.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.maartenmoerman.nl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
\nOk, let’s see how to configure this:<\/p>\n\n
\n
\n\/\/ Default Poller Interval (in seconds)
\n$config['rrd']['step'] = 300;
\n\/\/ 7 days of 5 min 62 days of 30 min 120 days of 2 hour 4 years of 1 day
\n$config['rrd']['rra'] = \"RRA:AVERAGE:0.5:1:2016 RRA:AVERAGE:0.5:6:2976 RRA:AVERAGE:0.5:24:1440 RRA:AVERAGE:0.5:288:1440 \";
\n$config['rrd']['rra'] .= \" RRA:MIN:0.5:6:1440 RRA:MIN:0.5:96:360 RRA:MIN:0.5:288:1440 \";
\n$config['rrd']['rra'] .= \" RRA:MAX:0.5:6:1440 RRA:MAX:0.5:96:360 RRA:MAX:0.5:288:1440 \";
\n<\/code><\/p><\/blockquote>\n\n