From Fedora Project Wiki

Better Erlang Integration

Summary

Improve Erlang software integration with the rest of Fedora.

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 EPMD systemd support by merging patches from Matwey V. Kornilov
  • Add erlang-ejournald, erlang-lager_journald_backend, and make Journald as a default logging backend.
  • 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
Package-x-generic-16.pngcouchdb No
Package-x-generic-16.pngejabberd No
Package-x-generic-16.pngmochiweb No
Package-x-generic-16.pngrabbitmq-server No
Package-x-generic-16.pngriak No
Package-x-generic-16.pngwings No
  • Collect feedback from volunteers regarding their experience with this Erlang/OTP version

User Experience

Fedora Erlang users will get more robust Erlang configurations. Less issues, more detailed logs.

Dependencies

The following packages must be rebuilt:

Name Rebuilt
Package-x-generic-16.pngcouchdb No
Package-x-generic-16.pngejabberd No
Package-x-generic-16.pngerlang-basho_metrics No
Package-x-generic-16.pngerlang-bitcask No
Package-x-generic-16.pngerlang-cl No
Package-x-generic-16.pngerlang-ebloom No
Package-x-generic-16.pngerlang-eleveldb No
Package-x-generic-16.pngerlang-emmap No
Package-x-generic-16.pngerlang-erlsyslog No
Package-x-generic-16.pngerlang-esasl No
Package-x-generic-16.pngerlang-esdl No
Package-x-generic-16.pngerlang-js No
Package-x-generic-16.pngerlang-skerl No
Package-x-generic-16.pngerlang-snappy No
Package-x-generic-16.pngwings 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)

Release Notes