Using the HBCK2 tool to remediate HBase clusters
The HBCK2 tool is a repair tool that you can use to remediate Apache HBase clusters. The HBCK2 tool is the next version of the Apache HBase hbck tool.
The HBCK2 tool is a repair tool to remediate Apache HBase clusters in CDH. The HBCK2 tool is the next version of the Apache HBase hbck tool.
To identify a list of inconsistencies or blockages in a running HBase cluster, you can view the Master logs. Once you have identified the issue, you can then use the HBCK2 tool to fix the defect or to skip-over a bad state. The HBCK2 tool uses an interactive fix-it process by asking the Master to make the fixes rather than carry out the repair locally.
The HBCK2 performs a single, discrete task each time it is run. The HBCK2 tool does not analyze everything in a running cluster and repair all the problems. Instead, you can use the HBCK2 tool to iteratively find and fix issues in your cluster. The HBCK2 tool lets you use interactive commands to fix one issue at a time.