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

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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

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

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