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https://issues.apache.org/jira/browse/HBASE-17756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17119746#comment-17119746
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Michael Stack commented on HBASE-17756:
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Testing UI changes is difficult. We have a few tests that do stuff like start
the UI, request a page, and verify that the page has some particular string
present. For the likes of what you are doing, a test like this is not going to
cut it.
I think the best thing would be yes, to run it local and verify it working as
expected. Take a picture and add here as a link so others can see the new
goodness.
For the likes of this operator tooling, I think it also tends to 'evolve'
rather than arrive all buttoned up. There is a first, skeleton version and then
over time if useful, it will get filled out; witness what happened to the 'HBCK
Report' screen. It was originally a [~zghao] idea with just a few issues
listed. It has since been filled out as an important debug tool.
Thanks [~shahrs87]
> We should have better introspection of HFiles
> ---------------------------------------------
>
> Key: HBASE-17756
> URL: https://issues.apache.org/jira/browse/HBASE-17756
> Project: HBase
> Issue Type: Brainstorming
> Components: HFile
> Reporter: Esteban Gutierrez
> Assignee: Rushabh Shah
> Priority: Major
> Attachments:
> 0001-HBASE-17756-We-should-have-better-introspection-of-H.patch
>
>
> [~saint....@gmail.com] was suggesting to use DataSketches
> (https://datasketches.github.io) in order to write additional statistics to
> the HFiles. This could be used to improve our split decisions,
> troubleshooting or potentially do other interesting analysis without having
> to perform full table scans. The statistics could be stored as part of the
> HFile but we could initially improve the visibility of the data by adding
> some statistics to HFilePrettyPrinter.
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