[jira] [Updated] (HDDS-12620) Fix OM Mismatch Deleted Container API

["Wei-Chiu Chuang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDDS-12620?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wei-Chiu Chuang updated HDDS-12620:
-----------------------------------
    Target Version/s: 2.0.1

> Fix OM Mismatch Deleted Container API
> -------------------------------------
>
>                 Key: HDDS-12620
>                 URL: https://issues.apache.org/jira/browse/HDDS-12620
>             Project: Apache Ozone
>          Issue Type: Bug
>          Components: Ozone Recon
>            Reporter: Swaminathan Balachandran
>            Assignee: Swaminathan Balachandran
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 2.1.0
>
>
> Currently the Container mismatch API in recon loads up the first few ContainerMetaData records  from ContainerKeyPrefix table. Then from the scm containerManager all deleted containers are iterated and checked against the records loaded from containerPrefixTable. If a deletedContainer is not present in the loaded list the results turn out to be empty even though there could be some records present in the containerPrefixTable in the next few pages. This could lead to a wrong result by setting the lastKey to null in case it couldn't find any records corresponding to a deletedContainer.
> Consider this example:
> ContainerPrefixTable has containerIds
> 1..100 1000-1100
> SCM has deletedContainerId
> 1000-1050
> Now if an api call is made with lastKey as 50 and limit as 50
> Now from the ContainerPrefix Table we would load only records 50-100
> From SCM ContainerManager we would load deleted Containers 1000-1050
> Since there is no intersection b/w these 2 containers then deletedContainers would never get loaded and would always be empty.



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