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Posted to issues@ignite.apache.org by "Yury Gerzhedovich (JIRA)" <ji...@apache.org> on 2018/09/28 09:39:00 UTC

[jira] [Commented] (IGNITE-8507) SQL: Print a warning if SQL index inline size is not sufficient

    [ https://issues.apache.org/jira/browse/IGNITE-8507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16631616#comment-16631616 ] 

Yury Gerzhedovich commented on IGNITE-8507:
-------------------------------------------

[~vozerov], InlineIndexHelper.fullSize can't give real size of data, it can returns size of part of data which was saved into index only. Also current implementation check it on put operation only. You suggest do it on compare - it will be invoked really often than put.
May be I don't fully understand your idea. Let's discuss internally.

> SQL: Print a warning if SQL index inline size is not sufficient
> ---------------------------------------------------------------
>
>                 Key: IGNITE-8507
>                 URL: https://issues.apache.org/jira/browse/IGNITE-8507
>             Project: Ignite
>          Issue Type: Task
>          Components: sql
>            Reporter: Vladimir Ozerov
>            Assignee: Yury Gerzhedovich
>            Priority: Blocker
>             Fix For: 2.7
>
>
> "Inline size" is very important optimization. When not used secondary index lookup may become extraordinary slow. 
> Let's print a warning when certain indexes cannot hold their values in index pages, so that user can adjust index configuration accordingly.



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