Thanks Adam.
It's version 1.6.0-0.3:
sjc-observium-1:/root# yum install rrdtool
<...snipped...>
Package rrdtool-1.6.0-0.3.opennms.el7.centos.x86_64 already installed and latest version
Nothing to do
sjc-observium-1:/root#
I thought "service rrdcached stop" would stop the process, but looks like it's NOT the case?
sjc-observium-1:/var/run/rrdcached# cat /var/run/rrdcached/rrdcached.pid
2453
sjc-observium-1:/var/run/rrdcached# ps aux | grep rrdcache
apache 2453 0.1 0.1 574224 73488 ? Ssl 16:34 0:20 /usr/sbin/rrdcached -w 1800 -z 1800 -f 3600 -s apache -l unix:/var/run/rrdcached/rrdcached.sock -j /var/tmp -m 664 -F -b /opt/observium/rrd -B -p /var/run/rrdcached/rrdcached.pid -l /var/run/rrdcached/rrdcached.sock
root 14550 0.0 0.0 112652 956 pts/0 S+ 20:55 0:00 grep --color=auto rrdcache
root 19867 0.0 0.0 119184 1932 pts/1 S+ 16:51 0:00 man rrdcached
sjc-observium-1:/var/run/rrdcached# service rrdcached stop
Stopping rrdcached (via systemctl): [ OK ]
sjc-observium-1:/var/run/rrdcached# ps aux | grep rrdcache
apache 2453 0.1 0.1 574224 73488 ? Ssl 16:34 0:20 /usr/sbin/rrdcached -w 1800 -z 1800 -f 3600 -s apache -l unix:/var/run/rrdcached/rrdcached.sock -j /var/tmp -m 664 -F -b /opt/observium/rrd -B -p /var/run/rrdcached/rrdcached.pid -l /var/run/rrdcached/rrdcached.sock
root 14790 0.0 0.0 112652 960 pts/0 S+ 20:55 0:00 grep --color=auto rrdcache
root 19867 0.0 0.0 119184 1932 pts/1 S+ 16:51 0:00 man rrdcached
sjc-observium-1:/var/run/rrdcached# service rrdcached start
Starting rrdcached (via systemctl): Job for rrdcached.service failed because a timeout was exceeded. See "systemctl status rrdcached.service" and "journalctl -xe" for details.
[FAILED]
sjc-observium-1:/var/run/rrdcached#
Does it mean we already have a copy of rrdcached running properly and so another service start would fail?
And we can just un-comment the rrdcached entry in config.php, and rrdcached should then start working?
Thanks.
- Gordon
From: observium <observium-bounces@observium.org> on behalf of Adam Armstrong via observium <observium@observium.org>
Reply-To: Observium <observium@observium.org>
Date: Wednesday, October 31, 2018 at 5:41 PM
To: David Rossi via observium <observium@observium.org>
Cc: Adam Armstrong <adama@memetic.org>
Subject: Re: [Observium] 'rrdcached' Config Issue
Hi,
I'm not sure how rrdcached could possible have a different timestamp than the rest of the system. oO
I wonder if this is because you started rrdcached during a poll or something. Or perhaps have 2 copies of rrdcached running.
I just installed a clean install via the install script and enabled rrdcached and it worked ok on Ubuntu 18.04.
/etc/defaults/rrdcached :
####
# /etc/default file for RRD cache daemon
# Full path to daemon
DAEMON=/usr/bin/rrdcached
# Optional override flush interval, in seconds.
WRITE_TIMEOUT=300
# Optional override maximum write delay, in seconds.
WRITE_JITTER=0
# Optional override number of write_threads
WRITE_THREADS=4
# Where database files are placed. If left unset, the default /tmp will
# be used. NB: The daemon will reject a directory that has symlinks as
# components. NB: You may want to have -B in BASE_OPTS.
BASE_PATH=/opt/observium/rrd/
# Where journal files are placed. If left unset, journaling will
# be disabled.
JOURNAL_PATH=/var/lib/rrdcached/journal/
# FHS standard placement for process ID file.
PIDFILE=/var/run/rrdcached.pid
# FHS standard placement for local control socket.
SOCKFILE=/var/run/rrdcached.sock
# Optional override group that should own/access the local control
# socket
SOCKGROUP=www-data
# Optional override access mode of local control socket.
SOCKMODE=0660
# Optional unprivileged group to run under when daemon. If unset
# retains invocation group privileges.
DAEMON_GROUP=observium
# Optional unprivileged user to run under when daemon. If unset
# retains invocation user privileges.
DAEMON_USER=observium
# Network socket address requests. Use in conjunction with SOCKFILE to
# also listen on INET domain sockets. The option is a lower-case ell
# ASCII 108 = 0x6c, and should be repeated for each address. The
# parameter is an optional IP address, followed by an optional port with
# a colon separating it from the address. The empty string is
# interpreted as "open sockets on the default port on all available
# interfaces", but generally does not pass through init script functions
# so use -L with no parameters for that configuration.
#NETWORK_OPTIONS="-L"
# Any other options not specifically supported by the script (-P, -f,
# -F, -B).
BASE_OPTIONS="-B"
####
This is the command as it's running :
/usr/bin/rrdcached -B -w 300 -z 0 -t 4 -b /opt/observium/rrd/ -j /var/lib/rrdcached/journal/ -G observium -U observium -p /var/run/rrdcached.pid -s www-data -m 0660 -l unix:/var/run/rrdcached.sock
What version of rrdtool is this?
adam.
On 2018-11-01 00:02:04, Gordon Cheng (gocheng) via observium <observium@observium.org> wrote:
Hi all,
In an attempt to improve the performance (previous email thread with subject Performance Issue - High CPU with 'mysqld'?), I'm trying to use 'rrdcached' on a new setup (version 18.9.9428 (9th September 2018) with the following configuration:
===
sjc-observium-1:/etc/init.d# cat rrdcached
<...snipped...>
# Path to the apachectl script, server binary, and short-form for messages.
rrdcached=/usr/sbin/rrdcached
prog=rrdcached
pidfile=/var/run/rrdcached/rrdcached.pid
sockfile=/var/run/rrdcached/rrdcached.sock
lockfile=/var/lock/subsys/rrdcached
RETVAL=0
<...snipped...>
-
sjc-observium-1:/etc/sysconfig# cat rrdcached
<...snipped...>
RRDCACHED_USER="apache"
OPTIONS="-w 1800 -z 1800 -f 3600 -s apache -l unix:/var/run/rrdcached/rrdcached.sock -j /var/tmp -m 664 -F -b /opt/observium/rrd -B"
SOCKPERMS=0660
<...snipped...>
-
sjc-observium-1:/usr/lib/tmpfiles.d# cat rrdcached.conf
d /run/rrdcached - apache apache
sjc-observium-1:/usr/lib/tmpfiles.d#
-
sjc-observium-1