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Posted to issues@ignite.apache.org by "Ivan Bessonov (Jira)" <ji...@apache.org> on 2020/12/01 09:04:00 UTC

[jira] [Updated] (IGNITE-13786) PDS defragmentation can inflate index size

     [ https://issues.apache.org/jira/browse/IGNITE-13786?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ivan Bessonov updated IGNITE-13786:
-----------------------------------
        Parent: IGNITE-13143
    Issue Type: Sub-task  (was: Bug)

> PDS defragmentation can inflate index size
> ------------------------------------------
>
>                 Key: IGNITE-13786
>                 URL: https://issues.apache.org/jira/browse/IGNITE-13786
>             Project: Ignite
>          Issue Type: Sub-task
>            Reporter: Ivan Bessonov
>            Assignee: Ivan Bessonov
>            Priority: Major
>
> For huge caches it is possible that defragmentation will lead to bigger indexes size.
> The reason is that we only append new data to index trees and never insert into the middle, this leads to under-utilization of B+Tree pages space.



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