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https://issues.apache.org/jira/browse/HBASE-24010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17126832#comment-17126832
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Elliot Miller commented on HBASE-24010:
---------------------------------------
The code change from HBase 1.x to 2.x relevant to this issue was to return an
ArrayList with the peers (instead of nil) _in addition_ to printing the peers
in a human-readable format. This change allows for further manipulation in the
shell. For example, you could assign it: {{hbase(main):001:0> x = list_peers}}.
The reason you cannot see any pretty-printed peers in [~songxincun]'s original
posting is that 0 peers were returned.
If you interested, compare the list_peers code in
[1.6.0|https://github.com/apache/hbase/blob/4b3df0f926f6ec64bd6e071b1ae18ff635b4cc98/hbase-shell/src/main/ruby/shell/commands/list_peers.rb#L47]
against
[2.2.5|https://github.com/apache/hbase/blob/rel/2.2.5/hbase-shell/src/main/ruby/shell/commands/list_peers.rb#L63].
If you look at Stack's comment, you can see an example of the human readable
peers listed by 2.x.
All this being said, we could try altering the shell to pretty-print returned
values like this ArrayList. I'm open to suggestions!
> HBase shell list_peers command is displayed incorrectly
> -------------------------------------------------------
>
> Key: HBASE-24010
> URL: https://issues.apache.org/jira/browse/HBASE-24010
> Project: HBase
> Issue Type: Bug
> Components: shell
> Reporter: song XinCun
> Assignee: song XinCun
> Priority: Major
>
> In 2.X version, I found hbase shell list_peers command displays java object
> id not the human readable peer messages
> {code:java}
> hbase(main):002:0> list_peers
> PEER_ID CLUSTER_KEY ENDPOINT_CLASSNAME STATE REPLICATE_ALL NAMESPACES
> TABLE_CFS BANDWIDTH SERIAL
> 0 row(s)
> Took 0.3336 seconds
> => #<Java::JavaUtil::ArrayList:0x308a9264>
> {code}
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