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https://issues.apache.org/jira/browse/HBASE-26445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Kyle Purtell resolved HBASE-26445.
-----------------------------------------
Resolution: Later
> Procedure state pretty-printing should use printable character friendly
> encoding
> --------------------------------------------------------------------------------
>
> Key: HBASE-26445
> URL: https://issues.apache.org/jira/browse/HBASE-26445
> Project: HBase
> Issue Type: Task
> Components: Operability
> Affects Versions: 2.4.8
> Reporter: Andrew Kyle Purtell
> Priority: Minor
>
> The shell 'list_procedures' command produces output like:
> ----
> 889 org.apache.hadoop.hbase.master.assignment.SplitTableRegionProcedure
> SUCCESS 2021-11-10 22:20:34 UTC 2021-11-10 22:20:35 UTC [{"state"=>[1, 2, 3,
> 11, 4, 5, 6, 7, 8, 9, 10, 2147483648]}, {"regionId"=>"1636579678894",
> "tableName"=>{"namespace"=>"ZGVmYXVsdA==",
> "qualifier"=>"SW50ZWdyYXRpb25UZXN0TG9hZENvbW1vbkNyYXds"},
> "startKey"=>"dWsuY28uZ3Jhbml0ZXRyYW5zZm9ybWF0aW9ucy53d3d8L2dhbGxlcnkvdA==",
> "endKey"=>"dXMuYmFuZHwvYmFuZC81OA==", "offline"=>false, "split"=>false,
> "replicaId"=>0}, {"userInfo"=>{"effectiveUser"=>"apurtell"},
> "parentRegionInfo"=>{"regionId"=>"1636579678894",
> "tableName"=>{"namespace"=>"ZGVmYXVsdA==",
> "qualifier"=>"SW50ZWdyYXRpb25UZXN0TG9hZENvbW1vbkNyYXds"},
> "startKey"=>"dWsuY28uZ3Jhbml0ZXRyYW5zZm9ybWF0aW9ucy53d3d8L2dhbGxlcnkvdA==",
> "endKey"=>"dXMuYmFuZHwvYmFuZC81OA==", "offline"=>false, "split"=>false,
> "replicaId"=>0}, "childRegionInfo"=>[{"regionId"=>"1636582834759",
> "tableName"=>{"namespace"=>"ZGVmYXVsdA==",
> "qualifier"=>"SW50ZWdyYXRpb25UZXN0TG9hZENvbW1vbkNyYXds"},
> "startKey"=>"dWsuY28uZ3Jhbml0ZXRyYW5zZm9ybWF0aW9ucy53d3d8L2dhbGxlcnkvdA==",
> "endKey"=>"dWsuY28uc2ltb25hbmRzY2h1c3Rlci53d3d8L2Jvb2tzL1RoZS1P",
> "offline"=>false, "split"=>false, "replicaId"=>0},
> {"regionId"=>"1636582834759", "tableName"=>{"namespace"=>"ZGVmYXVsdA==",
> "qualifier"=>"SW50ZWdyYXRpb25UZXN0TG9hZENvbW1vbkNyYXds"},
> "startKey"=>"dWsuY28uc2ltb25hbmRzY2h1c3Rlci53d3d8L2Jvb2tzL1RoZS1P",
> "endKey"=>"dXMuYmFuZHwvYmFuZC81OA==", "offline"=>false, "split"=>false,
> "replicaId"=>0}]}]
> ----
> The base64 encoding of byte[] values offers poor usability.
> Generally, table names etc are printable characters encoded in byte[]. Base64
> encoding them totally obfuscates information that is important to see at a
> glance. Even start keys and end keys might be printable characters.
> It would be better to use Bytes.toStringBinary or something else that shows
> printable characters as-is while escaping others that would be invalid in
> JSON formatting.
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