Solution for "Too Many Open Files" Issue

Here is a real practical solution for an issue faced in software development. The solution is given for linux users (Here it was tested in Cent OS 5).

Usually "Too many open files" Exception is thrown when we deploy many applications in a single server or in managed servers. The exception should be fixed in the OS level as there is no way to fix it in application level.
First get the system wide open files limit by using the following command.


vi /proc/sys/fs/file-max

This will show the current limit and the user can change it accordingly. (Log in as the super user) Please make sure to give a less value than the system memory.

Next, we need to sign the above value to a particular user. (Assign to the user name)
Open the limits.conf file and set the value as shown below.

vi /etc/security/limits.conf

There you can see the user level settings for the open file limits. Add the following two lines for the selected user. (Log in as the super user)

testuser soft nofile 755555
testuser hard nofile 755555

(Here, testuser is the user name and assumed the system has maximum memory of 8GB)

There you go, the problem solved as the open files limit is increased to a particular user.....

Remember, this won't cause any performance hits in the system.....

TWiki - the Open Source Enterprise Wiki and Web 2.0 Application Platform

TWiki^® is a flexible, powerful, and easy to use enterprise wiki, enterprise collaboration platform, and web application platform.

In here people who don't have any prior experience in web developing or document handling or even in project development can use this tool.
Mostly it can be used in any network such as internet or intranet.
It is developed by TWiki.org and powered by sun microsystems.
Totally reliable.

You can download TWiki either in Community release or in Enterprise release.
Community version allow us to manage most of the issues such as security,update,maintain etc...
But if you are in a busy role , you need it's enterprise version. then TWiki will take all the responsibilities.
Decision is up to you. click the link Download TWiki and feel easy with it.

Lore - A Knowledge based system

Lore is a professional knowledge base management system powered by PHP and MYSQL.

Lore allows you to quickly and easily organize frequently asked questions ,articles,and documentation into a cateogorized and searchable knowledge base.

With Lore ,you can provide your customers with instant answers to their inquries and support questions.

There are some interesting features about Lore.

One of the best aspects of Lore is it's intuitive interface .From the end-user presentation to the web-based control panel , every part of Lore is easy to learn and use.

Though Lore is easy to use , it is also an extremely robust system. It's feature list is extensive , supporting everything from article ratings and comments to "search engine friendly" URL's.

The complete PHP source code to Lore is included with it's license.The code is not encoded or obfuscated, and you can easily modify it to extend it's functionalityor customize it's features!
This is coming with the concept of open source freedom.

Installation is very straight forward and canbe done in minutes . An easy to use web- based installation wizard is included.

Lore is designed to handle an unlimited number of knowledge base articles and categories.With full category and sub-category support with unlimited depth , you can effieciently organize hundreds , or even thousands of articles.

Enjoy with Lore.............

Farewell of Xmarks

I have started my blog by writing about Xmarks. Because I fell in love with that nice tool.

There are some alternatives. Eg. For firefox we can use firefox sync For Google Chrome -> Chrome sync etc. But still Xmarks rules.

But ……………..

They are going to shut down their free service from the effect of 10^th of January year 2011. These days they are sending an official mail regarding their farewell to each & every registered users.

I still admired one of statement of the beginning of their mail is

“Dear Xmarks User,

We've always said we won't email you unless it's important; this is one of those occasions:

Xmarks will be shutting down our free browser synchronization services on January 10, 2011. For details on how to transition to recommended alternatives, consult this page.

…….. “

Well ……. That’s very unfortunate. And also they have mentioned that the full story behind this departure can be viewed from their Xmarks blog.

So that’s it…..

They have done a great job. Very good job indeed. Good bye dear old Xmarks………

Cisco CCNP New Structure

As we all (I mean all Cisco interested guys) know that after 31^st of July 2010 Cisco CCNP (Cisco Certified Network Professional) exam has been expired & we all got a new version of CCNP v6.

CCNPv5 BCMSN, BSCI, ISCW & ONT

But CCNPv6 consists on ROUTE (642-902) SWITCH (642-813) TSHOOT (642-832)

And more importantly each cost $200 & with the exam duration of 120 minutes.

More details on new looking Cisco site & direct link to subjects’ course details:

CCNP Certification Details

Will it worth?

One might say this won’t be worth as its sees. But when we take look at the content of all the 3 subjects (as a networking personnel’s point of view), routing & switching are more concentrated rather than going for QoS, Security etc. That’s a good move where one person can specialize in those mentioned areas with more trouble shooting experience.

Xmarks Wonder

If you can store your all bookmarks in one place & synchronize with your bookmarks in the office place & home… well this is a common scenario we are facing day to day.

Lots of add-ons, applications were made regarding on it but none of them are not popular or not familiar as Xmarks which was formerly known as Foxmarks a much popular firfox add-on.
But not only for Firefox Xmarks is available for most of the web browsers today.

Internet Explorer, Google Chrome & even for Apple Safari Xmarks add-on is available. And with the feature of synchronizing book marks between even browsers. This is something people looking for some years. (Visit http://www.xmarks.com )

And also this smart add-on consists of site information look up. I.e. In your Google search results, Xmarks will highlight the top three sites based on bookmarking history. IF you put your mouse over the special icon to the side of the search results & rankings etc.

And if you click the icon top of the URL of a site it will give a detail information of the particular site & give other sites information similar to the same site you are on.

For more updated information you can visit Xmarks blog. So add this smart feature to your browser to find out all the features with it & make your life easy.