High Performance Server? yeah. Its no wonder that we can setup high performance server.
Server – A computer running a service. yep. its true servers are nothing but computers running appropriate services.
So whats a server? Hardware or Software or both? What about the big 6 feet high machines we think as servers?
A server can be any computer running service(s).
You can make your laptop as a server or desktop or even mobile phone. but performance matters.
Servers performance depend on hardware and software. we can upgrade hardware to improve performance but upgrading software may fix bugs, add new features to it but no change in performance or can reduce performance.
Our major concern is choosing right software for the right job. There is no all in one software, even if there is it will be slow or buggy. We need to choose each and every piece of software to make a better system.
I will illustrate this with an example.
Requirement : We 10 people from 6 geographic locations intend to develop a social network which may serve 100 million users.
Analysis : Assume that we have best hardware, now focus on software. Software includes Operating System, Programming Language, Database Server, Web Server, SCM Server, Cache server. Our software need to be small memory footprint, bug/virus free, secure, fast.
If we see existing high performance implementations like hotmail, yahoo, facebook, twitter, google its like this,
- Google : Python, C++, Plan9 (i think), Bigtable, GWS, GFS, mysql, …
- Facebook : Linux, C++, C, PHP, Scribe, Thrift, Apache Cassandra, Hip hop, Tornado, Apache Hive, Varnish, Mysql, Memcached.
- Hotmail : IIS, Windows server, .Net, …
- Youtube : Memcached, …
- Yahoo : PHP, Mysql, Free BSD, …
- Twitter : Ruby, memcached, …
OS : CentOS or Ubuntu We have lot of options to choose in Operating Systems like Windows/Solaris/Unix/BSD/Linux/Mac/Plan9/AIX But Linux kernel is in active development than any other, fast/scalable/secure and nearly as bug/virus free as UNIX. Linux is having lot of flavors so we choose advanced and know version among them.
DBMS : Mysql or apache cassandra. We choose fast and distributed database management systems from Mysql, MS Sql Server, Postgresql, Oracle, DB2, …
Web Server : nginx. A Webserver serve’s performance depends on how it process request and how it handles scripts(PHP, Ruby, Python, Java,….). We have Lots of Webservers like Lighttpd, nginx, Apache, Cherokee, IIS, Tomcat, Glash fish, Weblogic, mongrel, Webrick,….
SCM Server : Git. Git is the best of its kind when compared with Mercurial, Subversion, Bazaar, CVS, Bitkeeper and several others.
Cache Server : Varnish
In future I will try to screen cast the best setup i can.