Norikra

Norikra is an open-source Stream Processing Server with SQL.

• Schema-less event streams (called as 'target')
• SQL processing with window specifier supports, and JOINs, SubQueries
• Complex input/output events with nested Hashes and Arrays, and Query supports
• Dynamic query registration/removing, without any restarts
• Ultra fast bootstrap and small start
• UDF plugins

Install and Execute

On JRuby environment, do these command (and, that all):

gem install norikra

To execute:

norikra start

For JRuby installation, you can use rbenv, rvm and xbuild, or install JRuby directly.

• JRuby: http://jruby.org/
• rbenv: https://github.com/sstephenson/rbenv/
• xbuild: https://github.com/tagomoris/xbuild

Install and launch

See: http://norikra.github.io/

How to execute norikra server and tests in development

Fix code and tests:

1. clone this repository
2. run bundle install w/ jruby
3. add/fix spec in spec/*_spec.rb
4. fix code in lib
5. run bundle exec rake

Run tests faster than 2 or more times:

1. execute spork
2. execute script/spec_server_pry in another terminal
3. run rspec in pry console (executed fastly after second times)

Execute norikra server with target/query continuation:

1. bundle exec rake devserver
2. Ctrl-C and re-execute for updated code

Clients

Use norikra-client cli command. These are available on both of JRuby and CRuby.

https://rubygems.org/gems/norikra-client https://rubygems.org/gems/norikra-client-jruby

And the client library for application developers are also included in these gems.

https://github.com/norikra/norikra-client-ruby

For other languages:

• Perl: https://github.com/norikra/norikra-client-perl

Events and Queries

See: http://norikra.github.io/

Changes

• v0.1.3:
• Fix critical bug about query de-registration
• v0.1.2:
• Fix CLI start command to detect jruby path collectly (behind rbenv/rvm and others)
• v0.1.1:
• Fix types more explicitly for users ('int/long' -> 'integer', 'float/double' -> 'float')
• v0.1.0:
• First release for production

Copyright

• Copyright (c) 2013- TAGOMORI Satoshi (tagomoris)
• License
  • GPLv2