[fix][cli] Pulsar shell: ensure admin client is recycled or disposed #17619
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Motivation
In Pulsar shell when creating a new admin client (using the
admin
API) is created for each command. There are two considerations:Modifications
PulsarAdminTool
) in order to being able to compare configurations and decide to keep or destroy the current admin clientThe client is discarded when:
--admin-url
) that is different from the current oneconfig use ...
) without the comparison because a newPulsarAdminTool
is created. This makes sense because when you change the config, you change the tenant or cluster.doc-not-needed