[jira] [Resolved] (HBASE-27765) Add biggest cell related info into web ui

["Duo Zhang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-27765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Duo Zhang resolved HBASE-27765.
-------------------------------
    Fix Version/s: 2.6.0
     Hadoop Flags: Reviewed
       Resolution: Fixed

Pushed to master and branch-2.

Thanks [~filtertip] for contributing!

Please fill the release note about this change.

Thanks.

> Add biggest cell related info into web ui
> -----------------------------------------
>
>                 Key: HBASE-27765
>                 URL: https://issues.apache.org/jira/browse/HBASE-27765
>             Project: HBase
>          Issue Type: Improvement
>          Components: HFile, UI
>            Reporter: Zheng Wang
>            Assignee: Zheng Wang
>            Priority: Major
>             Fix For: 2.6.0, 3.0.0-alpha-4
>
>         Attachments: screenshot-1.png, screenshot-2.png
>
>
> There are some disadvantages to large cell, such as can't be cached or cause memory fragmentation, but currently user can't easily to find them out.
> My proposal is save len and key of the biggest cell into fileinfo of hfile, and shown on web ui, including two places.
> 1: Add "Len Of Biggest Cell" into main page of regionServer, in here we can find out which regions has large cell by sorting.
> 2: Add "Len Of Biggest Cell" and "Key Of Biggest Cell" into region page, in here we can find out the exactly key and the hfile.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)