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https://issues.apache.org/jira/browse/IGNITE-11256?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16854513#comment-16854513
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Igor Sapego commented on IGNITE-11256:
--------------------------------------

[~agoncharuk], [SQLSTATE|https://en.wikipedia.org/wiki/SQLSTATE] are error 
codes from SQL standard. They are used in JDBC and ODBC, because these 
standards use SQL STATE codes to report errors to a user. Internally, we map 
our error codes to the most appropriate SQL STATE.

After googling a little, I've discovered that most databases map "read-only" 
errors to SQLSTATE "HY000" - general error.

> Implement read-only mode for grid
> ---------------------------------
>
>                 Key: IGNITE-11256
>                 URL: https://issues.apache.org/jira/browse/IGNITE-11256
>             Project: Ignite
>          Issue Type: Improvement
>            Reporter: Alexei Scherbakov
>            Assignee: Sergey Antonov
>            Priority: Major
>             Fix For: 2.8
>
>          Time Spent: 3.5h
>  Remaining Estimate: 0h
>
> Should be triggered from control.sh utility.
> Useful for maintenance work, for example checking partition consistency 
> (idle_verify)



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