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From "Mikhail Antonov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-7171) Initial web UI for region/memstore/storefiles details
Date Sat, 05 Dec 2015 02:54:10 GMT

     [ https://issues.apache.org/jira/browse/HBASE-7171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mikhail Antonov updated HBASE-7171:
-----------------------------------
    Attachment: HBASE-7171.patch

Here's draft patch. Added two new pages, region details and storefile details. Some notes
(cc [~stack], [~enis]):

 - regarding using "logical" api to traverse store files (think region.getStores().get('cfname').getStoreFiles()
) vs "physical" (traversing fs assuming certain physical layout and linking to NN-style printout)
I think first one would be easier to maintain and cleaner going forward? What do we need to
display on region page. Memstore params (besides current size, what else? timestamps, snapshot
info? File information - size, lmd, what else is of interest given the limited horizontal
space.

 - for now I just used quick and dirty approach when clicking at store file name link simply
invokes another java process (via 'hbase hfile...') and redirects the output to the page.
Is this information what we want to see at this store file details page (assuming that browsing
individual cells is not something I'm doing now, that needs more thinking)?  If this information
is kind of what we want here, then to avoid having to call another process I can change HFilePrettyPrinter,
pull KeyValueStatsCollector out of it, and a bit more refactoring would be needed there.

> Initial web UI for region/memstore/storefiles details
> -----------------------------------------------------
>
>                 Key: HBASE-7171
>                 URL: https://issues.apache.org/jira/browse/HBASE-7171
>             Project: HBase
>          Issue Type: Improvement
>          Components: UI
>            Reporter: stack
>            Assignee: Mikhail Antonov
>              Labels: beginner
>         Attachments: HBASE-7171.patch, region_details.png, region_list.png, storefile_details.png
>
>
> Click on a region in UI and get a listing of hfiles in HDFS and summary of memstore content;
click on an HFile and see its content



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