From 6e734937960b577f165489622baf0f922dbb6f5c Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@redhat.com>
Date: Thu, 30 May 2019 09:38:51 -0500
Subject: [PATCH] os/bluestore: bluefs_preextend_wal_files=true

This should merge with the fix for https://tracker.ceph.com/issues/18375

Signed-off-by: Sage Weil <sage@redhat.com>
---
 src/common/options.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/common/options.cc b/src/common/options.cc
index d4720f133c858..d7934ca2bfde0 100644
--- a/src/common/options.cc
+++ b/src/common/options.cc
@@ -4224,8 +4224,8 @@ std::vector<Option> get_global_options() {
     .set_description(""),
 
     Option("bluefs_preextend_wal_files", Option::TYPE_BOOL, Option::LEVEL_ADVANCED)
-    .set_default(false)
-    .set_description(""),
+    .set_default(true)
+    .set_description("Preextent rocksdb wal files on mkfs to avoid performance penalty for young stores"),
 
     Option("bluestore_bluefs", Option::TYPE_BOOL, Option::LEVEL_DEV)
     .set_default(true)
-- 
2.39.5