[jira] [Resolved] (HDDS-7500) Ozone recon server possible memory leak

["Tsz-wo Sze (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDDS-7500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tsz-wo Sze resolved HDDS-7500.
------------------------------
    Fix Version/s: 1.4.0
       Resolution: Fixed

The pull request is now merged.  Thanks, [~deveshsingh]!

> Ozone recon server possible memory leak
> ---------------------------------------
>
>                 Key: HDDS-7500
>                 URL: https://issues.apache.org/jira/browse/HDDS-7500
>             Project: Apache Ozone
>          Issue Type: Bug
>          Components: Ozone Recon
>            Reporter: George Huang
>            Assignee: Devesh Kumar Singh
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.4.0
>
>
> This seems to be an issue in Recon and needs fix after analysing the OM rocks DB. In Recon, we are running a namespacesummary task and this task keeps iterating all elements from directoryTable without considering the fact loading all elements in memory and if elements are more in number, this may cause OOM... After I checked the OM rocks DB of cluster, I can see millions of directories and they all will be loaded in memory by NameSpaceSummary task for FSO buckets to store and flush the data in NameSpaceSummaryTable of recon sql DB. This needs fix.



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