[jira] [Commented] (IOTDB-4354) 【0】[ confignode ] The leader of the schemaregion is displayed on the node that has been down

["Gaofei Cao (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IOTDB-4354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17635642#comment-17635642 ] 

Gaofei Cao commented on IOTDB-4354:
-----------------------------------

The cluster/ratis are work normally only when more than half replicas are work.

 

In this situation, ratis has 3 replicas(but down 2 replicas), it cannot change leader.

> 【0】[ confignode ] The leader of the schemaregion is displayed on the node that has been down
> --------------------------------------------------------------------------------------------
>
>                 Key: IOTDB-4354
>                 URL: https://issues.apache.org/jira/browse/IOTDB-4354
>             Project: Apache IoTDB
>          Issue Type: Bug
>          Components: mpp-cluster
>    Affects Versions: 0.14.0-SNAPSHOT
>            Reporter: 刘珍
>            Assignee: Yongzao Dan
>            Priority: Major
>         Attachments: image-2022-09-07-10-36-30-819.png
>
>
> m_0905_0095eb3， 3副本3C3D
> 下图，74节点的datanode已经down掉（72也down了），show regions|grep Leader ，SchemaRegion的Leader还在74，应该切主（{color:#de350b}但是ratis，3副本down掉2个节点，多于半数{color}）。
> !image-2022-09-07-10-36-30-819.png!
> 测试环境同https://issues.apache.org/jira/browse/IOTDB-4350



--
This message was sent by Atlassian Jira
(v8.20.10#820010)