mirror of
https://github.com/ceph/ceph
synced 2025-02-10 04:19:56 +00:00
36 lines
1.4 KiB
ReStructuredText
36 lines
1.4 KiB
ReStructuredText
===============
|
|
jerasure plugin
|
|
===============
|
|
|
|
Introduction
|
|
------------
|
|
|
|
The parameters interpreted by the ``jerasure`` plugin are:
|
|
|
|
::
|
|
|
|
ceph osd erasure-code-profile set myprofile \
|
|
directory=<dir> \ # plugin directory absolute path
|
|
plugin=jerasure \ # plugin name (only jerasure)
|
|
k=<k> \ # data chunks (default 2)
|
|
m=<m> \ # coding chunks (default 2)
|
|
technique=<technique> \ # coding technique
|
|
|
|
The coding techniques can be chosen among *reed_sol_van*,
|
|
*reed_sol_r6_op*, *cauchy_orig*, *cauchy_good*, *liberation*,
|
|
*blaum_roth* and *liber8tion*.
|
|
|
|
The *src/erasure-code/jerasure* directory contains the
|
|
implementation. It is a wrapper around the code found at
|
|
`https://github.com/ceph/jerasure <https://github.com/ceph/jerasure>`_
|
|
and `https://github.com/ceph/gf-complete
|
|
<https://github.com/ceph/gf-complete>`_ , pinned to the latest stable
|
|
version in *.gitmodules*. These repositories are copies of the
|
|
upstream repositories `http://jerasure.org/jerasure/jerasure
|
|
<http://jerasure.org/jerasure/jerasure>`_ and
|
|
`http://jerasure.org/jerasure/gf-complete
|
|
<http://jerasure.org/jerasure/gf-complete>`_ . The difference
|
|
between the two, if any, should match pull requests against upstream.
|
|
Note that as of 2023, the ``jerasure.org`` web site may no longer be
|
|
legitimate and/or associated with the original project.
|