[jira] [Created] (HBASE-22735) list_regions may throw an error if a region is RIT

[Andrew Purtell (JIRA)]

Andrew Purtell created HBASE-22735:
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             Summary: list_regions may throw an error if a region is RIT
                 Key: HBASE-22735
                 URL: https://issues.apache.org/jira/browse/HBASE-22735
             Project: HBase
          Issue Type: Bug
          Components: shell
    Affects Versions: 1.5.0
            Reporter: Andrew Purtell
             Fix For: 3.0.0, 1.5.0, 2.3.0, 2.2.1, 2.1.6, 1.3.6, 1.4.11


The 'list_regions' shell command gets a list of regions for a given table and 
then prints them and some attributes such as the server where they are located, 
current request count, data locality, and such. 

However if a region is in transition the command might fail with

{{ERROR: undefined method `getDataLocality' for nil:NilClass}}

and there may be other ways this can happen. Protect against use of nil 
references and just display what we can. 



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