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https://issues.apache.org/jira/browse/HDDS-121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prashant Pogde updated HDDS-121:
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Target Version/s: 1.2.0
I am managing the 1.1.0 release and we currently have more than 600 issues
targeted for 1.1.0. I am moving the target field to 1.2.0.
If you are actively working on this jira and believe this should be targeted to
1.1.0 release, Please change the target field back to 1.1.0 before Feb 05,
2021.
> Issue with change of configuration ozone.metastore.impl in SCM
> --------------------------------------------------------------
>
> Key: HDDS-121
> URL: https://issues.apache.org/jira/browse/HDDS-121
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Reporter: Bharat Viswanadham
> Assignee: Bharat Viswanadham
> Priority: Major
>
> Take a scenario:
> # When we started ozone cluster, I have set ozone.metastore.impl to RocksDB.
> # Later I have stopped ozone cluster.
> # Changed the configuration of ozone.metastore.impl to LevelDB
> Now, when we restart we create SCM container DB, node DB, delete blocks DB
> with a new db type. With this we will lose all the information.
>
> To avoid this kind of scenario, when we start SCM, we need to persist the DB
> used for SCM into a VersionFile, and use this. In this way with later
> restarts, if we have a version file, we read the dbType from Version file and
> use it for metadata store.
>
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