Quoting Reed Dier (reed.dier@xxxxxxxxxxx): > > > On Jun 22, 2018, at 2:14 AM, Stefan Kooman <stefan@xxxxxx> wrote: > > > > Just checking here: Are you using the telegraf ceph plugin on the nodes? > > In that case you _are_ duplicating data. But the good news is that you > > don't need to. There is a Ceph mgr telegraf plugin now (mimic) which > > also works on luminous: http://docs.ceph.com/docs/master/mgr/telegraf/ > > Hi Stefan, > > I’m just curious what the advantage you see to the telegraf plugin, > then feeding into influxdb, rather than the influxdb plugin in > ceph-mgr already existing. Just generally curious what the advantage > is to outputting into telegraf then into influx, unless you are > outputting to a different TSDB from Telegraf. We have ceph running in a "storage vrf", which uses routable IPv6, but not available from "internet vrf". Besides that we have a out-of-band manamgent inteface running in a network namespace that can reach the Internet. We use that to send data to monitoring / influx. We have two telegraf instances running on each host: 1) default (ceph) network namespace with a listener for ceph (mgr) data and as well pushing telegraf data to a telegraf-mgmt instance with a listener (socket). By using sockets we can "escape" the namespace barrier only for telegraf data. TL;DR: namespaces gives you isolation, but makes you jump through hoops. That was the main reason why we sponsored the development of a telegraf mgr plugin. > > Still have my OSD’s reporting their own stats in collectd daemons on > all of my OSD nodes, as a supplement to the direct ceph-mgr -> > influxdb statistics. Almost moved everything to telegraf after > Luminous broke some collectd data collection, but it all got sorted > out. Yeah, not all info is available in the manager yet :/. I hope this will change. There are some PR's out from Wido, that should fix this. The telegraf mgr plugin is a drop-in replacement for influx module (and providing some extra metrics). It also gives you the possibility to configure more advanced stuff (tls handling) in a seperate tool, instead of limited functionality in ceph module. This whole thing gets rendered out of use pretty quickly, with new dashboard v2 from SuSE, and the prometheus / proxy support for grafana ... options are still a good thing I think ;). Gr. Stefan -- | BIT BV http://www.bit.nl/ Kamer van Koophandel 09090351 | GPG: 0xD14839C6 +31 318 648 688 / info@xxxxxx _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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