[jira] [Commented] (HDDS-4745) Cannot change Ratis port in existing cluster

["Tsz-wo Sze (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDDS-4745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17759635#comment-17759635 ] 

Tsz-wo Sze commented on HDDS-4745:
----------------------------------

bq. ... because Ratis stores peer addresses in its configuration and restores after restart.

We recently have RATIS-1860 to overwrite the local meta conf file.  After the file is overwritten, the server should be able to restart with the new port.

> Cannot change Ratis port in existing cluster
> --------------------------------------------
>
>                 Key: HDDS-4745
>                 URL: https://issues.apache.org/jira/browse/HDDS-4745
>             Project: Apache Ozone
>          Issue Type: Bug
>          Components: Ozone Datanode
>            Reporter: Attila Doroszlai
>            Priority: Major
>              Labels: kubernetes
>
> The config property {{dfs.container.ratis.ipc}} controls datanodes' Ratis port.  However, changing it in an existing cluster and restarting datanodes causes failure, because Ratis stores peer addresses in its configuration and restores after restart.
> {noformat:title=example log}
> dn1_1    | 2021-01-26 08:51:32 INFO  RaftServerImpl:356 - 7aed8b8c-4c36-4c5f-8bd5-1b15590a65cb@group-2F22897F07E6: set configuration 0: [7aed8b8c-4c36-4c5f-8bd5-1b15590a65cb:10.9.0.11:34559, 50d855e4-ff25-43f5-8b8e-a49134de0f55:10.9.0.13:32773, e0122724-4141-44ba-848e-fa3b0e61a151:10.9.0.12:32883], old=null at 0
> dn1_1    | 2021-01-26 08:51:36 INFO  GrpcService:160 - 7aed8b8c-4c36-4c5f-8bd5-1b15590a65cb: GrpcService started, listening on 0.0.0.0/0.0.0.0:34917
> {noformat}



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