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Print info about ability to rebalance
As suggested during offline discussion, this patch adds a new bashvariable and description field in hcheck, which informs if therebalance was possible. This is to determine if there are splitinstances on the cluster, in which case rebalance is impossible....
Human readable hcheck functionality
Full hcheck functionality is implemented in this patch. Hcheck runsper-group checks, provides summary for the entire cluster and simulatesrebalance if required, the printing the modified metrics.In this patch, only the human-readable output is available....
Machine readable hcheck functionality
Machine readable output for hcheck.
Signed-off-by: Agata Murawska <agatamurawska@google.com>Reviewed-by: René Nussbaumer <rn@google.com>
Initial commit for introducting hcheck tool
Introduce infrastructure required to add Hcheck and build itsuccessfuly.