Raising the number of file descriptors for a regular user on CentOS/Fedora/Redhat is surprisingly difficult to learn how to do. There are lots of incomplete walk throughs on the web, some with typos and other problems.

Here are the steps that worked for me to raise the open file descriptor limit…

Simple setup to work with Couchbase in PHP-Laravel

Setting up PHP and Couchbase on a Mac couldn’t be any easier…

They play together so nice. Let’s get some forks.

couchbase:

Couchbase Java wrapper for Java SDK

http://rubygems.org/gems/jcouchbase

https://github.com/couchbaselabs/jcouchbase

Waterfall Methodologies seem antiquated nowadays, with SCRUM, Crystal, eXtreme, Kanban and others, all these new paradigms for building applications iteratively and quickly have really become commonplace. I feel NoSQL with Couchbase is the next evolution of that movement, allowing you to develop the data model just as smoothly and iteratively, and a lot more quickly.

Couchbase pattern to automatically versioning to a particular key!

def replace_document ( key, value, args = {} )

   if args.has_key_and_value?(:auto_version)

     version_tracker_key = key + "::version"
     initialize_document ( version_tracker_key, 1 )
     
     current_version = increment_atomic_count(version_tracker_key)

     # if the value is a Map then add the version to the doc
     if value.is_a? Map
          value[:auto_version] = current_version
     end

     # if there are previous versions, save current existing doc as a version, and straight key will be current                               version
     if current_version > 1
          doc = get_document(key)
          doc[:version_stamp] = Time.now.getUtc
          doc[:auto_version] = current_version - 1
          add_document(key + "::version::#{current_version - 1}", doc)
     end

   end
   
   COUCHBASE.replace(key, value)

end

A primary design pattern used in @Couchbase all the time, use an atomic counter as part of a key, much like an incremental-index column in SQL.