xrcd2 網路小頑童: netdata 試裝

今天在網上亂逛,剛好看到一個 netdata 的軟體,
網上是說~它是可以用來即時監控 Linux 的網管軟體,
而且安裝很簡單,就順手裝來玩看看.

安裝的 SOP 如下: OS　以 CentOS 7 為例　(netdata release 1.6.0)

#yum install -y zlib-devel gcc make git autoconf autogen automake pkgconfig libuuid libuuid-devel

#git clone https://github.com/firehol/netdata.git

#cd netdata

#./netdata-installer.sh

如缺相依軟體則會顯示
....

Sorry! netdata failed to build...

You many need to check these:

1. The package uuid-dev (or libuuid-devel) has to be installed.

If your system cannot find libuuid, although it is installed
run me with the option: --libs-are-really-here

2. The package zlib1g-dev (or zlib-devel) has to be installed.

If your system cannot find zlib, although it is installed
run me with the option: --libs-are-really-here

3. You need basic build tools installed, like:

gcc make autoconf automake pkg-config

Autoconf version 2.60 or higher is required.

If you still cannot get it to build, ask for help at github:

https://github.com/firehol/netdata/issues

如安裝完成則會顯示:
....

Downloading default configuration from netdata...
New configuration saved for you to edit at /etc/netdata/netdata.conf
--- Check KSM (kernel memory deduper) ---

Memory de-duplication instructions

You have kernel memory de-duper (called Kernel Same-page Merging,
or KSM) available, but it is not currently enabled.

To enable it run:

echo 1 >/sys/kernel/mm/ksm/run
echo 1000 >/sys/kernel/mm/ksm/sleep_millisecs

If you enable it, you will save 40-60% of netdata memory.

--- Check version.txt ---
--- Check apps.plugin ---
--- Generate netdata-uninstaller.sh ---
--- Basic netdata instructions ---

netdata by default listens on all IPs on port 19999,
so you can access it with:

http://this.machine.ip:19999/

To stop netdata run:

systemctl stop netdata

To start netdata run:

systemctl start netdata

Uninstall script generated: ./netdata-uninstaller.sh
Update script generated : ./netdata-updater.sh

netdata-updater.sh can work from cron. It will trigger an email from cron
only if it fails (it does not print anything when it can update netdata).
Run this to automatically check and install netdata updates once per day:

sudo ln -s /usr/local/src/netdata/netdata/netdata-updater.sh /etc/cron.daily/netdata-updater

--- We are done! ---

^
|.-. .-. .-. .-. .-. . netdata .-. .-
| '-' '-' '-' '-' '-' is installed and running now! -' '-'
+----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+--->

enjoy real-time performance and health monitoring...

..

那就可以直接連入該主機的 monitor web 了,
如果安裝多台亦可以在同一個 Browser 去點選不同的主機.