From c0e699bea4d6ed9093bf9cfa91093c3bb4ebfc7f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=AD=E6=9D=91=20=E5=BC=98=E6=AD=A6?=
 <abctail30@gmail.com>
Date: Sun, 15 Nov 2020 00:25:11 +0900
Subject: [PATCH] add sync order

---
 README.md | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 0cff870..9cdc2a9 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ eskeeper synchronizes index and alias with configuration files while ensuring id
 ### mode
 
 - [x] CLI mode
-- [x] Index status(close only)
+- [x] Index status(open/close only)
 - [ ] Agent mode
 
 ### sync 
@@ -101,6 +101,21 @@ eskeeper process is divided into four stages.
 #### sync stage
 * Sync indices and aliases with config
 
+The order of synchronization is as follows.
+
+```
+create index
+↓
+open index
+↓
+update alias
+↓
+close index
+```
+
+Index close operation should be done after switching the alias.
+Because there can be downtime before switching aliases.
+
 #### post-check stage
 * Check if indices & aliases has been created