Bryan Beaudreault created HBASE-26252:
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Summary: Add support for reloading balancer configs with
BalanceRequest
Key: HBASE-26252
URL: https://issues.apache.org/jira/browse/HBASE-26252
Project: HBase
Issue Type: Sub-task
Reporter: Bryan Beaudreault
Assignee: Bryan Beaudreault
It's currently a pain to iterate on balancer configs. You need to make changes
in hbase-site.xml, then find the full ServerName for the active HMaster, then
execute {{update_configuration '<full server name>'}}in the shell, then run the
balancer.
Finding the ServerName is actually quite annoying. The best way I've found is
to look at the JMX dump and find {{tag.serverName}}, but that takes a bunch of
steps.
We can make this a good deal more convenient by adding direct support for
reloading the balancer configs into the {{balance}} command.
This could look something like:
{{shell> balance \{RELOAD_CONFIGS => true}}}
Alternatively, we could add another string arg like:
{{shell> balance 'reload_config'}}
Either way, we'd add a new {{BalanceRequest$Builder#setReloadConfig(boolean)}}.
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