Openstack using DevStack - Failed to fetch cdrom

Hi,

While going over all the configuration needed with devstack for open stack and during the installation - after running ./stack.sh i received an error
"failed to fetch cdrom ...."

To solve this, go into /etc/apt
do 'sudo nano sources.list' and remove by using '#" the cd rom line.

Then start again the ./stack.sh and it will work

you just removed / disabled the cd rom



Hoped i helped,
Dor

ODroid c2 LibreElec

Hi All,

I bought the Odroid c2, wonderful piece of electronic. I bought it with ubuntu.
But once it came and after it requested to update and upgrade --> nothing works.
Then i tried manualy to install the ubuntu again it requested updates --> nothing works.
Then i tried the parallel version to the open elec i have on my pi 2, named also as Libre Elec.
This works good.


Dor

Create blocking connection with pika

Hi,

That what i did, watch that the port is not a string but integer parameter.

 pika.BlockingConnection(pika.ConnectionParameters(host='localhost',port=6672))



Dor

Debug in eclipse with remote web application on tomcat

First ,

Solution is for ubuntu 13.10 but it's the same for all linux as well as windows.
(On windows you just need to change the export)

export JPDA_ADDRESS=8888

Next, run the catalina.sh

./catalina.sh jpda run



That's it.


From eclipse, go to Run->Debug configuration -> select the Remote Java Application -> Add new
don't change anything except the port with the above port.
Select the web project in my case.

And debug.

Dor

opensymphony quartz cronexpression example

Several Quartz cron expressions:
This should be familiar for UNIX/Linux users.
1) "0 0/2 * * * ?" will run every 2 minutes.
2) "0/10 0 * * * ?" will run every 10 seconds.
3) "0 22 11 * * ? 2009" will run every day during 2009 on 11:22am
Hopefully it helps,
Dor