rrdcached

2 Aug 2018

Christian Eriksson <mailto:christian.eriksson@advania.se>

2 August 2018 at 14:48

Attached poller.php -d for one of the devices

RRD /opt/observium/rrd/device.net.ad.customer.se/ping.rrd already
exists - no need to create.

ERROR: rrdcached: RRD Error: opening
'/opt/observium/rrd/device.net.ad.customer.se/ping.rrd': No such
file or directory

”rrdtool info” gives me:

root@server:/opt/observium# rrdtool info --daemon device/ping.rrd

ERROR: rrdcached: No such file: /opt/observium/rrd/device/ping.rrd.

The same command for uptime.rrd works

Vänliga hälsningar / Best regards,

Advania_Trappa_CMYK

*Christian Eriksson*

System Consultant

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*Från:*Christian Eriksson
*Skickat:* den 2 augusti 2018 13:11
*Till:* Observium <observium@observium.org>
<mailto:observium@observium.org>
*Ämne:* rrdcached

Hi guys,

Hope someone here can shed some light on my issue with rrdcached
and observium. I am using a distributed setup with web/sql/poller
on separate machines. Followed the guide here
http://blog.best-practice.se/2017/10/scaling-observium-horizontally.html
and currently using two pollers with great success overall

What I can’t seem to figure out is why some rrd files won’t get
created. It doesn’t matter what poller I am using or what devices,
it is always the following rrd-files

ping.rrd

ping_snmp.rrd

status.rrd

Some information regarding my system

Observium 18.7.9354 (30th July 2018)

OS Linux 4.4.0-130-generic [amd64] (Ubuntu 16.04)

Apache 2.4.18 (Ubuntu)

PHP 7.0.30-0ubuntu0.16.04.1 (OPcache: ENABLED)

Python 2.7.12

MySQL 5.7.23-0ubuntu0.16.04.1 (extension: mysqli 5.0.12-dev)

SNMP NET-SNMP 5.7.3

RRDtool 1.5.5 (rrdcached 1.5.5: unix:/var/run/rrdcached.sock)

Fping 3.13 (IPv4 and IPv6)

*rrdcached settings*

$config['rrdcached'] = 'ip address';

$config['rrd']['no_local'] = TRUE;

*root@server:/home/user# ps aux | grep rrdcached*

observi+ 13596  1.6 0.5 1727784 45980 ?       Ssl  Aug01  15:07
/usr/bin/rrdcached -B, -F, -O, -R -L -w 1800 -z 1800 -t 8 -b
/opt/observium/rrd/ -j /var/lib/rrdcached/journal/ -G www-data -U
observium -p /var/run/rrdcached.pid -s www-data -m 0660 -l
unix:/var/run/rrdcached.sock

rrdcached journal file show no trace of the files

*Syslog errors on rrdcached server*

Aug  2 13:01:01 server rrdcached[13596]: handle_request_update:
stat (/opt/observium/rrd/device1.net.ad.handels.se/status.rrd) failed.

Aug  2 13:01:01 server rrdcached[13596]: handle_request_update:
stat (/opt/observium/rrd/device1.net.ad.handels.se/ping.rrd) failed.

Aug  2 13:01:01 server rrdcached[13596]: handle_request_update:
stat (/opt/observium/rrd/device2/status.rrd) failed.

Aug  2 13:01:01 server rrdcached[13596]: handle_request_update:
stat (/opt/observium/rrd/device1.net.ad.handels.se/ping_snmp.rrd)
failed.

Aug  2 13:01:01 server rrdcached[13596]: handle_request_update:
stat (/opt/observium/rrd/device2/ping.rrd) failed.

Aug  2 13:01:01 server rrdcached[13596]: handle_request_update:
stat (/opt/observium/rrd/device2/ping_snmp.rrd) failed.

Aug  2 13:01:01 server rrdcached[13596]: handle_request_update:
stat (/opt/observium/rrd/device3/status.rrd) failed.

Aug  2 13:01:01 server rrdcached[13596]: handle_request_update:
stat (/opt/observium/rrd/device3/ping.rrd) failed.

Aug  2 13:01:01 server rrdcached[13596]: handle_request_update:
stat (/opt/observium/rrd/device3/ping_snmp.rrd) failed.

I can manually create a rrd file from the poller with success

rrdtool create device/status.rrd --daemon ip-address
RRA:AVERAGE:0.5:1:2016 DS:status:GAUGE:600:-20000:U

Best regards

Christian Eriksson

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Christian Eriksson <mailto:christian.eriksson@advania.se>

2 August 2018 at 14:10

Hi guys,

Hope someone here can shed some light on my issue with rrdcached
and observium. I am using a distributed setup with web/sql/poller
on separate machines. Followed the guide here
http://blog.best-practice.se/2017/10/scaling-observium-horizontally.html
and currently using two pollers with great success overall

What I can’t seem to figure out is why some rrd files won’t get
created. It doesn’t matter what poller I am using or what devices,
it is always the following rrd-files

ping.rrd

ping_snmp.rrd

status.rrd

Some information regarding my system

Observium 18.7.9354 (30th July 2018)

OS Linux 4.4.0-130-generic [amd64] (Ubuntu 16.04)

Apache 2.4.18 (Ubuntu)

PHP 7.0.30-0ubuntu0.16.04.1 (OPcache: ENABLED)

Python 2.7.12

MySQL 5.7.23-0ubuntu0.16.04.1 (extension: mysqli 5.0.12-dev)

SNMP NET-SNMP 5.7.3

RRDtool 1.5.5 (rrdcached 1.5.5: unix:/var/run/rrdcached.sock)

Fping 3.13 (IPv4 and IPv6)

*rrdcached settings*

$config['rrdcached'] = 'ip address';

$config['rrd']['no_local'] = TRUE;

*root@server:/home/user# ps aux | grep rrdcached*

observi+ 13596  1.6 0.5 1727784 45980 ?       Ssl  Aug01  15:07
/usr/bin/rrdcached -B, -F, -O, -R -L -w 1800 -z 1800 -t 8 -b
/opt/observium/rrd/ -j /var/lib/rrdcached/journal/ -G www-data -U
observium -p /var/run/rrdcached.pid -s www-data -m 0660 -l
unix:/var/run/rrdcached.sock

rrdcached journal file show no trace of the files

*Syslog errors on rrdcached server*