Beta Branch addons/netdata.sh - new system monitor addon - part 2

This is preview part 2 for addons/netdata.sh that I am working on for Centmin Mod 123.09beta01+ and higher versions. Part 1 is outlined here.

---

The Centmin Mod addons/netdata.sh is work in progress and undergoing private testing only right now to allow 64bit CentOS users to install a full system monitoring application called Netdata.

Centmin Mod addons/netdata.sh will

• Netdata installed off main hostname and accessed by /netdata_RANDOMSUFFIX where RANDOMSUFFIX is random generated digits unique to each install
• Netdata will be password protected via auto configured nginx proxy upstream to Netdata backend which is running off TCP port 19999 and binded to 127.0.0.1
• Auto detect if system Linux Kernel supports KSM - memory dedupe and enable it if supported
• If Linux KSM - memory dedupe isn't supported, auto optimise Netdata history length based on detected memory available. Low memory systems will have a longer than default update interval and shorter global history length set to reduce memory usage requirements.
• Auto enables and configures additional monitoring plugins for Nginx, MariaDB MySQL, postfix, PHP-FPM, redis and sensors
• Health Monitoring - work in progress

Below are preview screenshots of addons/netdata.sh on local virtualbox based CentOS 7.3 64bit Centmin Mod 123.09beta01 install.

 

Netdata Nginx monitoring

 

MariaDB MySQL monitoring

 

Quick look at Netdata system resource usage while running a nginx reverse proxy to Netdata backend with active browser monitoring via pidstat

Code (Text):

Average:      UID       PID    %usr %system  %guest    %CPU   CPU  Command
Average:        0         9    0.00    0.11    0.00    0.11     -  rcu_sched
Average:        0        51    0.00    0.09    0.00    0.09     -  ksmd
Average:        0        64    0.00    0.02    0.00    0.02     -  kworker/0:1
Average:        0       442    0.00    0.05    0.00    0.05     -  xfsaild/dm-1
Average:        0       687    0.00    0.02    0.00    0.02     -  haveged
Average:        0       691    0.09    0.02    0.00    0.11     -  rngd
Average:        0       692    0.02    0.00    0.00    0.02     -  irqbalance
Average:      996      1500    0.18    0.32    0.00    0.50     -  mysqld
Average:     1001      1945    0.00    0.02    0.00    0.02     -  memcached
Average:        0     13833    0.00    0.02    0.00    0.02     -  kworker/4:1
Average:        0     15746    0.00    0.02    0.00    0.02     -  kworker/1:0
Average:        0     15897    0.00    0.02    0.00    0.02     -  sshd
Average:      995     17563    1.04    0.41    0.00    1.45     -  netdata
Average:      995     17590    0.30    0.30    0.00    0.59     -  python
Average:      995     17615    0.43    0.14    0.00    0.57     -  apps.plugin
Average:     1000     18670    0.09    0.20    0.00    0.30     -  nginx
Average:     1000     18671    0.09    0.11    0.00    0.20     -  nginx
Average:     1000     18673    0.18    0.32    0.00    0.50     -  nginx
Average:        0     19080    0.27    1.11    0.00    1.39     -  pidstat
Average:      995     19085    0.02    0.02    0.00    0.05     -  bash

Code (Text):

Average:      UID       PID  minflt/s  majflt/s     VSZ    RSS   %MEM  Command
Average:        0         1      0.02      0.00  190860   3816   0.20  systemd
Average:        0       692      1.00      0.00   19168   1188   0.06  irqbalance
Average:      996      1500    829.43      0.00  583848 175540   9.32  mysqld
Average:      995     17563     30.66      0.00  198070  33549   1.78  netdata
Average:      995     17590     68.88      0.00  182988  19068   1.01  python
Average:     1000     18670      0.02      0.00  137960  52480   2.79  nginx
Average:     1000     18673      0.05      0.00  137960  52480   2.79  nginx
Average:        0     19080    434.39      0.00  108280   1178   0.06  pidstat
Average:      995     19085     27.62      0.00    9636   1492   0.08  bash

Code (Text):

Average:      UID       PID   kB_rd/s   kB_wr/s kB_ccwr/s  Command
Average:        0       956      0.00      0.09      0.00  rsyslogd
Average:      995     17563      0.00      2.27      0.00  netdata
Average:     1000     18670      0.00      1.18      0.00  nginx
Average:     1000     18671      0.00      0.73      0.00  nginx
Average:     1000     18673      0.00      1.91      0.00  nginx

 

More progress on Centmin Mod addons/netdata.sh development. You can now install netdata on a specific Nginx vhost domain instead of main hostname

Code (Text):

./netdata.sh install test.netdata.com

Centmin Mod addons/netdata.sh will

• Netdata installed off main hostname or specific nginx domain name you choose and accessed by /netdata_RANDOMSUFFIX where RANDOMSUFFIX is random generated digits unique to each install
• Netdata will be password protected via auto configured nginx proxy upstream to Netdata backend which is running off TCP port 19999 and binded to 127.0.0.1
• Auto detect if system Linux Kernel supports KSM - memory dedupe and enable it if supported
• If Linux KSM - memory dedupe isn't supported, auto optimise Netdata history length based on detected memory available. Low memory systems will have a longer than default update interval and shorter global history length set to reduce memory usage requirements.
• Auto enables and configures additional monitoring plugins for Nginx, MariaDB MySQL, postfix, PHP-FPM, redis and sensors
• Health Monitoring - work in progress