From 6f761c1f908ba61f6eefef2d8b9915ec621f1341 Mon Sep 17 00:00:00 2001
From: en-jin19 <jinenwei@pingcap.com>
Date: Wed, 1 Sep 2021 10:04:59 +0200
Subject: [PATCH] TiKV config: fix wrong description

---
 tikv-configuration-file.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tikv-configuration-file.md b/tikv-configuration-file.md
index 9e928c496fa4..291045f578bb 100644
--- a/tikv-configuration-file.md
+++ b/tikv-configuration-file.md
@@ -797,7 +797,7 @@ Configuration items related to RocksDB
 
 ### `compaction-readahead-size`
 
-+ The size of `readahead` when compaction is being performed
++ Enables the readahead feature during RocksDB compaction and specifies the size of readahead data. If you are using mechanical disks, it is recommended to set the value to 2MB at least.
 + Default value: `0`
 + Minimum value: `0`
 + Unit: B|KB|MB|GB