From 4e5df50a397d773107b688fced2718093d0e29df Mon Sep 17 00:00:00 2001
From: GuoRentong <rentong.guo@zilliz.com>
Date: Tue, 19 Jan 2021 16:19:35 +0800
Subject: [PATCH] Update doc:Component interface

Signed-off-by: GuoRentong <rentong.guo@zilliz.com>
---
 docs/developer_guides/chap01_system_overview.md | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/docs/developer_guides/chap01_system_overview.md b/docs/developer_guides/chap01_system_overview.md
index 24427ded4..e0e2923a1 100644
--- a/docs/developer_guides/chap01_system_overview.md
+++ b/docs/developer_guides/chap01_system_overview.md
@@ -81,7 +81,7 @@ type Component interface {
   Init()
   Start()
   Stop()
-  GetServiceStates() (ServiceStates, error)
+  GetComponentStates() (ComponentStates, error)
   GetTimeTickChannel() (string, error)
   GetStatisticsChannel() (string, error)
 } 
@@ -100,17 +100,16 @@ const (
   ABNORMAL StateCode = 2
 )
 
-type NodeStates struct {
+type ComponentInfo struct {
   NodeID UniqueID
   Role string
   StateCode StateCode
   ExtraInfo KeyValuePair
 }
 
-type ServiceStates struct {
-  StateCode StateCode
-  NodeStates []NodeStates
-  ExtraInfo KeyValuePair
+type ComponentStates struct {
+  States ComponentInfo
+  SubcomponentStates []ComponentInfo
 }
 ```
 
-- 
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