Server::Starter meets Java
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Server::Starter is a daemon that allows hot-deployment of server programs. It was originally designed for Perl web applications but can now also be used to run Java web apps by having the Java Virtual Machine inherit the listening socket from the parent Server::Starter process. This new capability allows easy upgrading of the JVM version and shutdown of old processes when new ones are launched, though it does not currently work on Mac OS X.
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Developing IT infrastructures with Puppet
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A java servers
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oSC22ww4.pdf
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A java servers
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How to Install LAMP in Ubuntu 14.04
How to Install LAMP in Ubuntu 14.04Sanjary Edu Hello Everyone,
How to Reset New Root Passwd or Fix Broken Sudo.......
Errors that you are getting..........
Error 1:- you may notice an error saying you're not in the sudoers file and the incident is going to be reported.
Error 2:- sorry user usuario is not allowed to execute '/usr/bin/passwd root' as root on.
Cause and symptoms :-
the /etc/sudoers file has been altered to no longer allow users in the admin group to escalate privilege
the permissions on the /etc/sudoers file are changed to something other than 0440
a user who should not have been has been taken out of the admin group.
By above error and cause can be done by following steps.....
To Reset Root Passwd
step1 :- Restart your server or desktop
step2 :- press continue shift untill boot menu show
step3 :- select ubuntu generic second option press Enter
step4 :- then select root shell press Enter
step5 :- type mount -o rw,remount /
step6 :- sudo passwd root or passwd root assign passwd and then repeat again the same passwd
Note :- inplace of root you can set your name,hostname any name that u assign during installation OR Login.
You can also Create NEW USER
step7 :-sudo adduser ubuntu and give new passwd
Thanking You
MNPHP Scalable Architecture 101 - Feb 3 2011
MNPHP Scalable Architecture 101 - Feb 3 2011Mike Willbanks An overall presentation on scaling out your system starting from a single server and many of the several options you may face.
Copper: A high performance workflow engine
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A workflow can describe business processes for example, however any kind of use case is supported. The "modelling" language is Java, that has several advantages:
* with COPPER any Java developer is able to design workflows
* all Java developers like to use Java
* many Java libs can be integrated within COPPER
* many Java tools, like IDEs, can be used
* with COPPER your productivity will be increased when using a workflow engine
* using Java solutions will protect your investment
* COPPER is OpenSource under Apache Licence 2.0
Please visit copper-engine.org for details.
Java Servlets & JSP
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grate techniques
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4. open mano set up and usage
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3. How to install openMANO either automatically through scripts or manually by downloading packages and configuring components.
01 overview-servlets-and-environment-setup
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1) What a servlet is - a Java program that runs on a server and processes incoming web requests and responses based on a URL.
2) Installing Tomcat, the Java web server, and Eclipse, the IDE, to develop and run servlets.
3) Creating a basic "Hello World" web application with a servlet using Eclipse, and deploying it to Tomcat.
Bare Metal to OpenStack with Razor and Chef
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WP Sandbox Presentation WordCamp Toronto 2011
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01 overview-and-setup
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🔍 Types of Feed Water Heaters:
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Common in low-pressure stages.
Closed Feed Water Heater (Surface Type)
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Common in high-pressure systems.
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Improves thermal efficiency.
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Server::Starter meets Java
- 3. a super daemon to hot- deploy server programs
- 5. De facto standard for Perl webapp
- 6. I want to run Java web apps on Server::Starter
- 7. There is no fdopen() support on JVM
- 8. Reflection?
- 9. orz
- 10. After half a year …
- 12. JVM can use Inherited Socket from parent process
- 14. Behaviour: if (isSocket(fd 0) { return it; }
- 15. Hmm..
- 16. If Server::Starter use always fd 0, then it’s available.
- 18. DO IT
- 19. —port=8080=0 8080: port 0: file descriptor
- 20. Pros
- 21. Shutdown old process after new process is listening
- 22. You don’t need to care the ClassLoader related issues, like resource leaks.
- 23. Easy to upgrade JVM Version
- 24. Cons
- 25. Not works on OS X
- 26. Demo
- 28. New Issue
- 32. Fin.