From: Mark Nelson <mnelson@redhat.com>
Date: Thu, 21 Sep 2017 22:21:16 +0000 (-0500)
Subject: common/options.cc: Set Filestore rocksdb compaction readahead option.
X-Git-Tag: v12.2.2~144^2~1
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=6f2f8cdc6a6fa64928fd2d5459b4974e281d857e;p=ceph.git

common/options.cc: Set Filestore rocksdb compaction readahead option.

fixes: http://tracker.ceph.com/issues/21505

Signed-off-by: Mark Nelson <mnelson@redhat.com>
(cherry picked from commit 66567e573836c570040c8d8148c34b0cf9dc9ce2)
---

diff --git a/src/common/options.cc b/src/common/options.cc
index 4480f2ed308c..de6dc10974a2 100644
--- a/src/common/options.cc
+++ b/src/common/options.cc
@@ -3650,7 +3650,7 @@ std::vector<Option> get_global_options() {
     // filestore
 
     Option("filestore_rocksdb_options", Option::TYPE_STR, Option::LEVEL_ADVANCED)
-    .set_default("")
+    .set_default("compaction_readahead_size=2097152")
     .set_description(""),
 
     Option("filestore_omap_backend", Option::TYPE_STR, Option::LEVEL_ADVANCED)