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https://issues.apache.org/jira/browse/HDFS-13203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Elek, Marton reassigned HDFS-13203:
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Assignee: (was: Elek, Marton)
> Ozone: dozone: auto-bootstrap SCM/KSM in containerized environment
> ------------------------------------------------------------------
>
> Key: HDFS-13203
> URL: https://issues.apache.org/jira/browse/HDFS-13203
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: HDFS-7240
> Affects Versions: 3.1.0
> Reporter: Elek, Marton
> Priority: Major
>
> Currently to start SCM and KSM in a new environment we need to:
> 1. Initialize scm (/hdfs scm -init)
> 2. Start scm
> 3. hdfs ksm -createObjectStore (connects to the scm, scm should be running)
> 4. Start ksm
> The problematic part is step 3.) as in a containerized environment
> (docker-compose/kubernetes) the timing couldn't be guaranteed.
> I propose to introduce a new command line flag '--auto-bootstrap' for both
> KSM and SCM (and maybe for Namenode in the future).
> It will:
> 1. Initilize KSM and SCM *if and only if* the data directories are missing
> 2. In case of KSM retry the initilization in every 10 seconds (in case of
> SCM is not yet running) in case of connection failure
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