One of our customers got confused with "balance_switch" command in HBase shell.
They mistakenly ran "balance_swich status" command instead of "balancer_enabled" command to see if the balancer is enabled. However, like the following, it didn't cause any errors and it looks like the command was successful.
To make matters worse, the "balance_swich status" command will make the balancer disabled.
Of course, the command was wrong but I think that's a little bit confusing. So I think we need to add parameter validations for commands in HBase shell. I'll check if we need to add validations for any other commands in this Jira.