dsezen – Page 5 – Derya (Dorian) Sezen

AWS Elasticbeanstalk hooking after app deploy

April 19, 2015 / dsezen

I need to run a specific command after the app is deployed but there is no relevant key under ebextensions for that purpose. The key “container_commands” is not giving this functionality, runs your command before the deploy, but there is a workaround:

1. Create your own script and place it under .ebextensions directory

2. Under container_commands, add the following lines (preferably in a separate config file):

container_commands:

01-command:

command: cp .ebextensions/001_pre_tomcat_start.sh /opt/elasticbeanstalk/hooks/appdeploy/post

02-command:

command: chmod 775 /opt/elasticbeanstalk/hooks/appdeploy/post/001_pre_tomcat_start.sh

That’s it!

OSX Yosemite Bluetooth Mouse stopped working

April 19, 2015 / dsezen

Honestly, I was just thinking of the stability of OSX Yosemite and just after suddenly the connection with Bluetooth mouse is broken (What a coincidence!) and cannot be established again even i unpair and pair. Beside, the Bluetooth seems not responsive when i tried to disable it.

As a veteran Linux guy, i switched to the terminal and typed the following command:

killall blued

This helped the daemon to restart itself (watchdog starts it again)

Eclipse Maven plugin installation

April 11, 2015 / dsezen

After installing my Linux OS again, seems the previous link under www.sonatype.org/m2eclipse is broken, so here is the brand new installation steps for Maven Eclipse:

1. Install SLF4J Logging :

Eclipse –> Help –> Install New Software

Work with: http://www.fuin.org/p2-repository/

Click “Add”

Select Slf4j-api under Maven osgi-bundles

Click “Next”

2. Install Guava:

Eclipse –> Help –> Install New Software

http://guava-osgi.googlecode.com/svn/trunk/repository/

3. Install Maven 1.4 (Not the latest version)

Maven 1.5 seems have problem with Eclipse 3.8

Eclipse –> Help –> Install New Software

http://download.eclipse.org/technology/m2e/releases

Uncheck “Show only the latest versions of available software”

Choose version 1.4

4 . Import the existing Maven project:

File –> Import –> …

Play with the CPU frequency under Linux

April 11, 2015 / dsezen

After installing Ubuntu on my legacy laptop, i noticed that the CPU frequency is scaling down to 800 Mhz. (upon to the temperature i guess)

derya@dsezenlinux:~$ cat /proc/cpuinfo

processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Core(TM)2 Duo CPU T9300 @ 2.50GHz
stepping : 6
microcode : 0x607
cpu MHz : 800.000

When it is 800 Mhz. the computer becomes extremely slow, so i decided to keep it stabile at 2500 Mhz.

Steps:

1. Install cpufreq-selector

For Ubuntu, this is under gnome-applets pack:

sudo apt-get install gnome-applets

2. Run the following for each core:

sudo cpufreq-selector -c 0 -g performance

sudo cpufreq-selector -c 1 -g performance

3. Check if it is ok:

cat /proc/cpuinfo

How to place a list of Latitude and Longitude coordinates on a map

March 26, 2015 / dsezen

If you have a list of latitude and longitude coordinates and need to place them on a map, you can use

https://en.batchgeo.com/

in order to batch upload the coordinates.

Derya (Dorian) Sezen

Partner @kloia

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AWS Elasticbeanstalk hooking after app deploy

OSX Yosemite Bluetooth Mouse stopped working

Eclipse Maven plugin installation

Play with the CPU frequency under Linux

How to place a list of Latitude and Longitude coordinates on a map

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