Recently I've been revisiting influxdb and trying to setup some toy
deployments. As part of this process we've set up a handful of systems with
collectd pulling metrics and pushing to my instance of influxdb over the
collectd network plugin. There are several examples of this setup available
but it seems I can't get data from the remote instances of collectd to
populate in influx. The catch here is that a local collectd instance that
monitors the influxdb system is able to populate but it's the only one.
Below are the debug steps I've taken, any advice or something I might be
overlooking is appreciated.
system information:
CentOS Linux release 7.2.1511
collectd-5.5.0
influxdb-0.13.0.x86_64
influxdb configuration:
[[collectd]]
enabled = true
database = "collectd"
typesdb = "/usr/share/collectd/types.db"
bind-address = ":25826"
collectd network plugin configuration: (same on all remote/local)
<Plugin network>
Server "metrics.tst" "25826"
</Plugin>
I've verified the following for debug purposes as per various guides online:
UDP buffer size:
[root@metrics ~]# sysctl net.core.rmem_max
net.core.rmem_max = 8388608
Verify receiving packets:
[root@metrics ~]# tcpdump -v -n dst port 25826
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535
bytes
13:06:47.283486 IP (tos 0x0, ttl 63, id 0, offset 0, flags [DF], proto UDP
(17), length 1339)
10.0.0.100.46339 > 10.0.0.10.25826: UDP, length 1311
13:06:49.283651 IP (tos 0x0, ttl 63, id 0, offset 0, flags [DF], proto UDP
(17), length 1336)
10.0.0.100.46339 > 10.0.0.10.25826: UDP, length 1308
Verify that I'm listening:
[root@metrics ~]# ss -anu
State Recv-Q Send-Q Local Address:Port Peer Address:Port
UNCONN 0 0 :::25826 :::*
[root@metrics ~]# netstat -anlp | grep 25826
udp6 0 0 :::25826 :::*
9387/influxd
influxdb log output:
[root@metrics ~]# tail -F /var/log/influxdb/influxd.log | grep collectd
[collectd] 2016/06/30 13:15:01 Starting collectd service
[collectd] 2016/06/30 13:15:01 Listening on UDP: [::]:25826
Every time when I try to dump the series information:
[root@metrics ~]# influx
Visit https://enterprise.influxdata.com to register for updates, InfluxDB
server management, and monitoring.
Connected to http://localhost:8086 version 0.13.0
InfluxDB shell version: 0.13.0
> use collectd
Using database collectd
> show series
>
However when I use a local collectd instance I get several populated
series.I've tried looking for more debugging output from influx but what
the collectd service provides isn't much. Additionally the I haven't found
anything in stats or diagnostics that helps. Any ideas anyone?
Regards,
-Michael
--
Remember to include the InfluxDB version number with all issue reports
---
You received this message because you are subscribed to the Google Groups
"InfluxDB" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at https://groups.google.com/group/influxdb.
To view this discussion on the web visit
https://groups.google.com/d/msgid/influxdb/6027ec99-1c76-4fd3-bf7d-c3fe34bffffb%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
