[jira] [Assigned] (HDDS-12378) Changing the default value of hdds.scm.safemode.min.datanode to 3

["Anastasia Kostryukova (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDDS-12378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Anastasia Kostryukova reassigned HDDS-12378:
--------------------------------------------

    Assignee: Anastasia Kostryukova  (was: Nandakumar)

> Changing the default value of hdds.scm.safemode.min.datanode to 3 
> ------------------------------------------------------------------
>
>                 Key: HDDS-12378
>                 URL: https://issues.apache.org/jira/browse/HDDS-12378
>             Project: Apache Ozone
>          Issue Type: Improvement
>            Reporter: Nandakumar
>            Assignee: Anastasia Kostryukova
>            Priority: Major
>
> Currently, the default value of {{hdds.scm.safemode.min.datanode}} is set to {{{}1{}}}.
> This means that an user can deploy an Ozone cluster (with default configuration) with just one datanode and the cluster will come out of {{{}safemode{}}}. After coming out of {{safemode}} the writes with three way replication will fail.
> By changing the default value of {{hdds.scm.safemode.min.datanode}} from {{1}} to {{{}3{}}}, we will make sure that the cluster deployed with default configuration will not fail during write once it's out of {{{}safemode{}}}.
> The users who wants to run Ozone with just one datanode can manually update the config.



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