Tag Archives: Ubuntu

StatsD – Installation and integration with Graphite

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Compared to Graphite, installing StatsD server is just a piece of cake.

1. Install Node.js. For better management on Node.js, you could consider using nvm.

 

2. Checkout the StatsD project on GitHub.

git clone https://github.com/etsy/statsd.git

 

3. Copy the exampleConfig.js and name it to whatever you like and edit it as follow.
ex. statsdConfig.js.

{
  graphitePort: 2003
, graphiteHost: "<graphite host>"
, port: 8125
, backends: [ "./backends/graphite", "./backends/console" ] // console is for debug
, debug: true // For debug
, graphite: { legacyNamespace: false } // Better group all collected metrics under stats
}

Continue reading StatsD – Installation and integration with Graphite

Install Graphite under pyenv virtualenv on Ubuntu

It took me one and an half day to get the Graphite working…

1. Make sure you have pyenv and pyenv-virtualenv installed.

 

2. Install the following packages.

sudo apt-get install python-dev pkg-config libcairo2-dev memcached

 

3. Install Python 2.7 with enable-shared.

env PYTHON_CONFIGURE_OPTS="--enable-shared" pyenv install 2.7.8

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PostgreSQL – Set and Get Timezone

There is a timezone configuration on PostgreSQL server. If you want to change the default globally, you can edit the postgresql.conf. On Ubuntu, it is located at

  • /etc/postgresql/<version>/main/postgresql.conf
# - Locale and Formatting -

datestyle = 'iso, mdy'
#intervalstyle = 'postgres'
#timezone = 'Hongkong'
timezone = 'UTC'

 

We could also tweak the timezone only in your current PostgreSQL session.

1. Get the current timezone.

SELECT current_setting('TIMEZONE');

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Perl – Setting locale failed

I tried to install Python using pyenv but came across the following error:

vagrant@vagrant-ubuntu-trusty-64:~$ pyenv install 2.7.8
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
	LANGUAGE = (unset),
	LC_ALL = (unset),
	LC_CTYPE = "UTF-8",
	LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

 

For those which are unset, set the environmental variables in .bashrc or .bash_profile.

export LANGUAGE=en_US.UTF-8
export LC_ALL=en_US.UTF-8

 

Re-login and try again.

Done =)

Reference: perl: warning: Please check that your locale settings ubuntu

Tig – Git interface on command line

It’s not easy to view the Git log in command line but most of the time is the most straight forward way or sometimes, the only way you could view the Git commit history.

Tig is a ncurses-based interface to view your Git repository.

Installation on OS X using Homebrew:

brew install tig

 

Installation on Ubuntu:

apt-get install tig

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Ubuntu – Install Monit

Monit is a opensource monitoring tool on Unix system. The simplest use case would be restarting your service if there is failure.

On Ubuntu, simply run apt-get to install Monit.

sudo apt-get install monit

 

The Monit folder is at /etc/monit. Before you can read anything from Monit, create the /etc/monit/conf.d/monit.conf in order to setup the Monit web interface.

set httpd port 2812 and
  use address localhost
  allow localhost

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Ubuntu – Install Node Ver­sion Man­ager globally for all users

The Node Ver­sion Man­ager(nvm) could help you to manage multiple Node.js installations. The following steps are executed from root account.

1. Install the required packages.

apt-get install build-essential openssl libssl-dev curl

 

2. Create a new user group and add those users which are allowed to manage Node.js installation. The following command create a new group called dev.

groupadd dev

Continue reading Ubuntu – Install Node Ver­sion Man­ager globally for all users