Linux in Supercomputers and Robotics

90% of the world's most powerful supercomputers using an operating system GNU / Linux, in fact, the top ten of supercomputers use Linux. In fact, the penetration of Linux in data centers is very high, 33.8% of the world runs on Linux servers compared to 7.3% does so in a Microsoft operating system. For example, Google's servers run on Linux, like the server hosting the website of the White House.

Linux Earlier Years

The first commercial distribution GNU / Linux was Yggdrasil was launched Lice-CD format in 1992. Red Hat was one of the first distributions to settle within companies and data centers in 1999. Debian was one of the first GNU / Linux that was constituted and organized as a community of developers.

Linux OS used in Major Applications / Services

Linux is present in highly critical applications such as Japan's bullet trains, traffic control, San Francisco, the New York Stock Exchange, CERN, many air traffic control systems or control of nuclear reactors of submarines and ships many nuclear war.

Expanding Everyday

Linux has more than 9.2 million lines of code and this amount grows 10% each year. Of the 9.2 million lines, the kernel itself accounts for 5% and 55% drivers. Add lines 4500, 1800 and 1500 are removed are changed every day.

Widely Used

Linux is now one of the most widely ported operating system kernels, running on a diverse range of systems from handheld computers to mainframe servers.

Showing posts with label perl. Show all posts
Showing posts with label perl. Show all posts

Wednesday, May 23, 2012

Failed to load Inline module

10:40 AM Unknown No comments


Today while going through the error log of a server. The logs were flooding with this error. Actually its not an error its just a warning.
# tail -f /var/log/httpd/error_log
[Tue May 22 21:00:16 2012] [error] [client 78.50.114.80] Failed to load Inline module for best performance. at ./split_dyn.pl line 11., referer: http://domain.com/sblogin/login.shtml/members/

On searching found that  Inline module is a perl module. We can install the Inline module by logging into the server as root and giving the following command.
# perl -MCPAN -e 'install Inline'
The installation will stop a few times for us to manually enter y / yes for a few questions. We can confim that the module is installed when we finally see this line.

Writing /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi/auto/Inline/.packlist
Appending installation info to /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi/perllocal.pod
/usr/bin/make install  -- OK
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