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From "Karan Mehta (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-14925) Develop HBase shell command/tool to list table's region info through command line
Date Wed, 03 May 2017 20:53:04 GMT

     [ https://issues.apache.org/jira/browse/HBASE-14925?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Karan Mehta updated HBASE-14925:
    Release Note: 
Added a shell command 'list_regions' for displaying the table's region info through command

        List all regions for a particular table as an array and also filter them by server
name (optional) as prefix
        and maximum locality (optional). By default, it will return all the regions for the
table with any locality.
        The command displays server name, region name, start key, end key, size of the region
in MB, number of requests
        and the locality. The information can be projected out via an array as third parameter.
By default all these information
        is displayed. Possible array values are SERVER_NAME, REGION_NAME, START_KEY, END_KEY,
        are not case sensitive. If you don't want to filter by server name, pass an empty
hash / string as shown below.

        hbase> list_regions 'table_name'
        hbase> list_regions 'table_name', 'server_name'
        hbase> list_regions 'table_name', {SERVER_NAME => 'server_name', LOCALITY_THRESHOLD
=> 0.8}
        hbase> list_regions 'table_name', {SERVER_NAME => 'server_name', LOCALITY_THRESHOLD
=> 0.8}, ['SERVER_NAME']
        hbase> list_regions 'table_name', {}, ['SERVER_NAME', 'start_key']
        hbase> list_regions 'table_name', '', ['SERVER_NAME', 'start_key']

> Develop HBase shell command/tool to list table's region info through command line
> ---------------------------------------------------------------------------------
>                 Key: HBASE-14925
>                 URL: https://issues.apache.org/jira/browse/HBASE-14925
>             Project: HBase
>          Issue Type: Improvement
>          Components: shell
>            Reporter: Romil Choksi
>            Assignee: Karan Mehta
>             Fix For: 2.0.0, 1.4.0
>         Attachments: HBASE-14925.002.patch, HBASE-14925.003.addendum.001.patch, HBASE-14925.003.patch,
> I am going through the hbase shell commands to see if there is anything I can use to
get all the regions info just for a particular table. I don’t see any such command that
provides me that information.
> It would be better to have a command that provides region info, start key, end key etc
taking a table name as the input parameter. This is available through HBase UI on clicking
on a particular table's link
> A tool/shell command to get a list of regions for a table or all tables in a tabular
structured output (that is machine readable)

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