Features/Riak

Riak

https://wiki.basho.com/Riak.html

Summary

Add Riak NoSQL database to the Fedora repositories.

Owner

• Name: Peter Lemenkov
• Email: lemenkov@gmail.com

Current status

• Targeted release: Fedora 18 (maybe)
• Last updated: 2012-06-09
• Percentage of completion: 55%

Detailed Description

Fedora not only catches up recently with the other distributions in terms of available NoSQL databases and related software but overtakes almost all of them. Another one missing title is Riak.

Riak is a Dynamo-inspired key/value store, written in Erlang, that scales predictably and easily. Riak also simplifies development by giving developers the ability to quickly prototype, test, and deploy their applications.

A truly fault-tolerant system, Riak has no single point of failure. No machines are special or central in Riak, so developers and operations professionals can decide exactly how fault-tolerant they want and need their applications to be.

Benefit to Fedora

The installation procedure for Riak is quite complex. You need to grab sources from Git and install (in a specific order) about a dozen of packages each of them has their own set of dependencies which are also need to be resolved. AFAIK no other mainstream distribution provides the packages for Riak, so Fedora again will be the first one, who will enable simple installation of this NoSQL db. This in turn may attract people who still undecided which distribution whey should use.

Scope

Some work was already done. However there is a lot of things to do:

https://bugzilla.redhat.com/showdependencytree.cgi?id=652682&hide_resolved=0

Packaging in progress

Name	Approved?
Riak	No
erlang-riak_core	No
erlang-lager	Yes
erlang-webmachine	Yes
erlang-mochiweb	Yes
rebar	Yes
erlang-getopt	Yes
erlang-protobuffs	Yes
erlang-lfe	Yes
erlang-neotoma	Yes
erlang-mustache	Yes
erlang-riak_sysmon	No
erlang-poolboy	Yes
erlang-bitcask	No
erlang-ebloom	Yes
erlang-riak_kv	No
erlang-merge_index	No
erlang-sext	No
erlang-edown	Yes
erlang-basho_metrics	Yes
erlang-eper	No
erlang-gtknode	Yes
erlang-riak_pipe	No
erlang-eleveldb	No
leveldb	No
erlang-js	Yes
erlang-riak_client	Yes
erlang-luke	Yes
erlang-luwak	No
erlang-skerl	No
erlang-cluster_info	Yes
erlang-riak_err	Yes
erlang-basho_stats	Yes
erlang-riak_control	No

How To Test

These simple examples must work as described after successful installation of Riak:

• https://wiki.basho.com/display/RIAK/Basic+Riak+API+Operations
• https://wiki.basho.com/display/RIAK/Loading+Data+and+Running+MapReduce+Queries

I'll provide more examples later.

User Experience

Users will be able to install Riak with only "sudo yum install riak" instead of reading large manuals, fetching sources from GitHub, compiling them, installing and fixing inevitable installation errors.

Dependencies

Adding riak doesn't break any already existing packages. It just adds several new ones. See the table above for the full list of dependencies and the current status.

Contingency Plan

None necessary.

Documentation

• https://wiki.basho.com/display/RIAK/Riak

Release Notes

Riak, a scalable and reliable data store written in Erlang, is available in Fedora 18.

Comments and Discussion

• See Talk:Features/Riak