[jira] [Resolved] (HDDS-3812) Disable netty resource leak detector in datanode

["Mukul Kumar Singh (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDDS-3812?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mukul Kumar Singh resolved HDDS-3812.
-------------------------------------
    Fix Version/s: 0.6.0
       Resolution: Fixed

> Disable netty resource leak detector in datanode
> ------------------------------------------------
>
>                 Key: HDDS-3812
>                 URL: https://issues.apache.org/jira/browse/HDDS-3812
>             Project: Hadoop Distributed Data Store
>          Issue Type: Bug
>            Reporter: Rajesh Balamohan
>            Assignee: Lokesh Jain
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.6.0
>
>         Attachments: image-2020-06-08-07-46-24-733.png, image-2020-06-08-07-46-36-931.png
>
>
> By default netty enables resource leak detector. However, this ends up throwing exception everytime to track the location.  
>  
> For every write and for every bytebuf allocation in netty, it ends up going via this path which can hurt during concurrency and for perf.
> [https://github.com/netty/netty/blob/b82258b72fdf4c733d9c4a641c6b8725b036485f/common/src/main/java/io/netty/util/ResourceLeakDetector.java#L106]
> [https://github.com/netty/netty/blob/b82258b72fdf4c733d9c4a641c6b8725b036485f/common/src/main/java/io/netty/util/ResourceLeakDetector.java#L591]
> !image-2020-06-08-07-46-24-733.png!



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