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https://issues.apache.org/jira/browse/RANGER-3703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17520470#comment-17520470
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Bhavik Patel commented on RANGER-3703:
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Are you installing the fresh setup(cluster) or upgrading the ranger version?
> Data loss during initialization
> --------------------------------
>
> Key: RANGER-3703
> URL: https://issues.apache.org/jira/browse/RANGER-3703
> Project: Ranger
> Issue Type: Improvement
> Components: admin
> Affects Versions: 1.2.0, 2.2.0
> Reporter: Binhua Hu
> Priority: Major
> Attachments: ranger database volume.png, ranger log.png
>
>
> In the docker container or distributed nodes, the initialization
> script(setup.sh) may be executed many times. Ranger controls the
> initialization process through database table（x_db_version_h）. However, when
> the number of database connections is too large or the network is abnormal,
> the initialization script will judge abnormally, the script will trigger
> reconstruction, and the data will be lost.So is it reasonable to drop tables
> in script(ranger_core_db_XX.sql).
> The initialization log is as follows，
> !ranger log.png!
> The data volume in the Ranger database is as follows，
> !ranger database volume.png|width=957,height=360!
>
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