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https://issues.apache.org/jira/browse/HBASE-28837?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nick Dimiduk resolved HBASE-28837.
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Resolution: Fixed
Pushed to branch-2+. Thanks for sharing [~eboland148]!
> Introduce row statistics coprocessor example
> --------------------------------------------
>
> Key: HBASE-28837
> URL: https://issues.apache.org/jira/browse/HBASE-28837
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0, 3.0.0-beta-1
> Reporter: Evelyn Boland
> Assignee: Evelyn Boland
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.7.0, 3.0.0-beta-2
>
>
> Goal:
> Add a coprocessor to HBase that allows administrators to track high level
> statistics on the rows and cells in their HBase tables. Administrators can
> load this coprocessor into their RegionServers if they wish to gain more
> visibility into the shape of their data in HBase.
> At my day job, we've leveraged the statistics from this coprocessor to
> automatically configure more optimal block sizes and smarter compaction
> schedules for our fleet of nearly 200 HBase clusters.
> Context:
> Since HBase tables can store terabytes or even petabytes of data, HBase
> administrators often have incomplete information about the data stored in
> their HBase tables. Without a comprehensive understanding of the shape of
> their data, it can be difficult for administrators to configure clusters for
> a desired level of performance and/or reliability. Row statistics have the
> potential to supercharge HBase management.
> [Design
> doc|https://docs.google.com/document/d/1oaNAZUER5zO8yivmzRBVAMmL6r2cYiJn9YCbDe14LMw/edit#heading=h.nch5d72p27ex]
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