[iotdb] 01/01: add confignode notice

[qi...@apache.org]

This is an automated email from the ASF dual-hosted git repository.

qiaojialin pushed a commit to branch add_confignode_doc
in repository https://gitbox.apache.org/repos/asf/iotdb.git

commit 0c048d2fccf4c88d6a48f75020847f992cc14584
Author: qiaojialin <64...@qq.com>
AuthorDate: Fri Dec 2 19:00:26 2022 +0800

    add confignode notice
---
 docs/UserGuide/Cluster/Cluster-Concept.md    | 2 ++
 docs/zh/UserGuide/Cluster/Cluster-Concept.md | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/docs/UserGuide/Cluster/Cluster-Concept.md b/docs/UserGuide/Cluster/Cluster-Concept.md
index 8c4a19fa0a..55adb6c483 100644
--- a/docs/UserGuide/Cluster/Cluster-Concept.md
+++ b/docs/UserGuide/Cluster/Cluster-Concept.md
@@ -31,6 +31,8 @@ An illustration of the cluster architecture：
 
 ConfigNode is the control node of the cluster, which manages the cluster's node status, partition information, etc. All ConfigNodes in the cluster form a highly available group, which is fully replicated.
 
+Notice：The replication factor of ConfigNode is all ConfigNodes that has joined the Cluster. Over half of the ConfigNodes is Running could the cluster work.
+
 DataNode stores the data and schema of the cluster, which manages multiple data regions and schema regions. Data is a time-value pair, and schema is the path and data type of each time series.
 
 Client could only connect to the DataNode for operation.
diff --git a/docs/zh/UserGuide/Cluster/Cluster-Concept.md b/docs/zh/UserGuide/Cluster/Cluster-Concept.md
index 238e471915..597b66d16e 100644
--- a/docs/zh/UserGuide/Cluster/Cluster-Concept.md
+++ b/docs/zh/UserGuide/Cluster/Cluster-Concept.md
@@ -31,6 +31,8 @@ Apache IoTDB 集群版包含两种角色的节点，ConfigNode 和 DataNode，
 
 ConfigNode 是集群的控制节点，管理集群的节点状态、分区信息等，集群所有 ConfigNode 组成一个高可用组，数据全量备份。
 
+注意：ConfigNode 的副本数是集群当前加入的 ConfigNode 个数，一半以上的 ConfigNode 存活集群才能提供服务。
+
 DataNode 是集群的数据节点，管理多个数据分片、元数据分片，数据即时间序列中的时间戳和值，元数据为时间序列的路径信息、数据类型等。
 
 Client 只能通过 DataNode 进行数据读写。