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https://issues.apache.org/jira/browse/AMBARI-16094?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vitaly Brodetskyi updated AMBARI-16094:
---------------------------------------
    Attachment:     (was: AMBARI-16094.patch)

> Improvements to DB consistency check
> ------------------------------------
>
>                 Key: AMBARI-16094
>                 URL: https://issues.apache.org/jira/browse/AMBARI-16094
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.4.0
>            Reporter: Vitaly Brodetskyi
>            Assignee: Vitaly Brodetskyi
>            Priority: Critical
>             Fix For: 2.4.0
>
>         Attachments: AMBARI-16094.patch
>
>
> * disable (we can remove later) DatabaseCheck
> * Have CheckDatabaseHelper be called as part of ambari-server start
> ** Modify {{ambari-server start}} to so that it calls {{ambari-server 
> check-database}}
> *ambari-server check-database improvements*
> * On the output modify {{Ambari Server 'check-database' completed 
> successfully.}} to {{Ambari Server 'check-database' completed.}} - _remove 
> successfully_
> * Use “--skip-database-check” (not skip-database-validation) to force 
> ambari-server to start despite error
> * If there is error when check-database is run then use the following text
> {code}
> DB configs consistency check failed. Run “ambari-server start 
> --skip-database-check” to skip. If you use this “--skip-database-check” 
> option, do not make any changes to your cluster topology or perform a cluster 
> upgrade until you correct the database consistency issues. See 
> "/var/log/ambari-server/ambari-check-database.log" for more details on the 
> consistency issues.
> {code}
> *ambari-server start improvements*
> * On Ambari Server start, the output failure text to should mention 
> ambari-server.log (in addition to .out file it does today)
> * If user has not specified {{--skip-database-check}} fail start command if 
> check-database reports error
> * When user starts server with --skip-database-check, if there are DB check 
> errors, print message:
> {code}
> Ambari Server is starting with the database consistency check skipped. Do not 
> make any changes to your cluster topology or perform a cluster upgrade until 
> you correct the database consistency issues. See 
> "/var/log/ambari-server/ambari-check-database.log" for more details on the 
> consistency issues.
> {code}
> When using log file paths, make sure to use the right path from log4j.
> *Optional*
> Modify ambari.properties to add {{database_check_error_skipped=true}} if user 
> started with {{--skip-database-check}} and there were errors due to 
> database-check. If there are no errors then store 
> {{database_check_error_skipped=false}}. Eventually, UI will use this property 
> and show warnings to the user and even prevent HDP upgrade or other topology 
> modifying operations such as Add Host/Service.



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