From: Loic Dachary <loic@dachary.org>
Date: Wed, 5 Feb 2014 16:27:09 +0000 (+0100)
Subject: common: simpler erasure code technique
X-Git-Tag: v0.78~221^2~5
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=377a8458ec1e9ec94d4d59a3f5fe19ec7ee49f1d;p=ceph.git

common: simpler erasure code technique

Change the default technique from Cauchy to ReedSolomon. Although it is
less efficient the alignment constraints are more intuitive.

Signed-off-by: Loic Dachary <loic@dachary.org>
---

diff --git a/src/common/config_opts.h b/src/common/config_opts.h
index 6993c5e8cad1..0395fec937db 100644
--- a/src/common/config_opts.h
+++ b/src/common/config_opts.h
@@ -404,8 +404,7 @@ OPTION(osd_pool_default_erasure_code_directory, OPT_STR, CEPH_PKGLIBDIR"/erasure
 OPTION(osd_pool_default_erasure_code_properties,
        OPT_STR,
        "erasure-code-plugin=jerasure "
-       "erasure-code-technique=cauchy_good "
-       "erasure-code-packetsize=3072 "
+       "erasure-code-technique=reed_sol_van "
        "erasure-code-k=4 "
        "erasure-code-m=2 "
        ) // default properties of osd pool create