fluent-plugin-nostat
fluentd plugin for system resource monitoring whithout dstat
Installation
install with gem command as:
$ gem install fluent-plugin-nostat
configuration
<source>
type nostat
run_interval 1
mode dstat # raw or dstat
output_type graphite # hash or graphite
</source>
- tag : If there is no tag value, the tag will be "{tag_prefix}.{hostname}.nostat".
- run_interval : seconds
- mode : raw or dstat. raw : just get the values from /proc/{STATS}. dstat : modify the values as dstat.
- output_type : hash or graphite. hash : old version style. graphite : slice all output for grapite.
- tag_prefix : If there is no tag value, the tag will be "{tag_prefix}.{hostname}.nostat".
output
raw mode
the raw stats from /proc directory.
- cpu : time - http://www.linuxhowtos.org/System/procstat.htm
- memory : KB - https://www.centos.org/docs/5/html/5.1/Deployment_Guide/s2-proc-meminfo.html
- disk I/O : sector - https://www.kernel.org/doc/Documentation/ABI/testing/procfs-diskstats
- network I/O : bytes - http://www.onlamp.com/pub/a/linux/2000/11/16/LinuxAdmin.html
cpu={"usr"=>52773, "sys"=>28330, "idl"=>2217987, "wai"=>1995, "siq"=>4112, "hiq"=>0} disk={"sda"=>{"read"=>"9786551", "write"=>"29250018"}} net={"enp0s3"=>{"recv"=>8940623796, "send"=>383889456}, "enp0s8"=>{"recv"=>8940623796, "send"=>383889456}} mem={"total"=>1884188, "free"=>67968, "buff"=>0, "cach"=>1546820, "used"=>269400}
dstat mode
- cpu : percentage
- memory : bytes
- disk I/O : bytes/sec
- network I/O : bytes/sec
cpu={"usr"=>0, "sys"=>0, "idl"=>100, "wai"=>0, "siq"=>0, "hiq"=>0} mem={"free"=>1693290496, "buff"=>0, "cach"=>60887040, "used"=>175230976} disk={"sda"=>{"read"=>0, "write"=>0}} net={"enp0s3"=>{"recv"=>344, "send"=>1668}, "enp0s8"=>{"recv"=>344, "send"=>1668}}
graphite output style
graphite output type is for fluent-plugin-graphite. To use this output type, graphite plugin should be installed by following command. There is no dependancy for that plugin yet.
gem install fluent-plugin-graphite
- full configuration example
<source>
type nostat
tag_prefix graphite.
run_interval 60
mode dstat
output_type graphite
</source>
<match graphite.**>
type graphite
host 192.168.56.91
port 2003
tag_for prefix
remove_tag_prefix graphite
name_key_pattern ^*$
</match>
- output
tag : record
hostname.nostat.cpu : usr => 10
hostname.nostat.cpu : sys => 0
hostname.nostat.cpu : idl => 90
hostname.nostat.cpu : wai => 0
...
hostname.nostat.mem : free => 1693290496
hostname.nostat.mem : buff => 0
hostname.nostat.mem : cach => 60887040
hostname.nostat.mem : used => 175230976
...
it was tested on
. CentOS 7.x (kernel 3.10.x) with graphite