Changes/BetterErlangSupport

Better Erlang Integration

Summary

Improve Erlang software integration with the rest of Fedora.

Owner

• Name: Peter Lemenkov, Fedora Erlang SIG
• Email: lemenkov@gmail.com, erlang@lists.fedoraproject.org
• Release notes owner:

Current status

• Targeted release: Fedora 21
• Last updated: 2014-03-23
• Tracker bug: <will be assigned by the Wrangler>

Detailed Description

• Enable fine grained EC crypto support by upgrading Erlang to the latest R17.
• Enable systemd support by merging patches from Matwey V. Kornilov
• Fix the long-standing noarch issue by providing additional default location for Erlang bytecode data.
• Split-off infrequently used modules which requires X11, Pulseaudio and ensure that it won't break anything.
• Update Erlang RPM-related macros to improve packaging by reducing spec-file sizes.

Benefit to Fedora

• Users will get initial EC support. We still can't enable EC fully but at least we will enable some EC curves.
• Users will have less issues caused by poor systemd and epmd integration (lost node names etc).
• Packagers won't see scary rpmlint messages regarding marking arch-independent package as arch-dependent one.
• Users won't have to install X11-related libraries if they don't want to.
• Packagers will spend less time on packaging Erlang software for Fedora.

Scope

• Proposal owners:

• Other developers: N/A (not a System Wide Change)

• Release engineering: N/A (not a System Wide Change)

• Policies and guidelines: N/A (not a System Wide Change)

Upgrade/compatibility impact

N/A (not a System Wide Change)

How To Test

• Ensure that high-grade Erlang applications are still working:

Name	Tested
couchdb	No
ejabberd	No
mochiweb	No
rabbitmq-server	No
riak	No
wings	No

• Collect feedback from volunteers regarding their experience with this Erlang/OTP version

User Experience

N/A (not a System Wide Change)

Dependencies

• The following packages must be rebuilt:

Name	Rebuilt
couchdb	No
ejabberd	No
erlang-basho_metrics	No
erlang-bitcask	No
erlang-cl	No
erlang-ebloom	No
erlang-eleveldb	No
erlang-emmap	No
erlang-erlsyslog	No
erlang-esasl	No
erlang-esdl	No
erlang-js	No
erlang-skerl	No
erlang-snappy	No
wings	No

Contingency Plan

• Contingency mechanism: (What to do? Who will do it?) N/A (not a System Wide Change)
• Contingency deadline: N/A (not a System Wide Change)
• Blocks release? N/A (not a System Wide Change), Yes/No
• Blocks product? product <-- Applicable for Changes that blocks specific product release/Fedora.next -->

Documentation

N/A (not a System Wide Change)