replication (Hbck2)

Identifies issues related to HBase replication and optionally fixes them.

Bash
    
 
hbase hbck -j <path-to-hbck2-jar> replication [OPTIONS] [<TABLENAME>... | -i <INPUT_FILE>...]
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Option	Description
`-f`, `--fix`	Attempts to correct any replication issues found.
`-i`, `--inputFiles <file1> [<file2>...]`	Specifies one or more input files containing table names, one per line.

This command checks for common replication-related issues in the cluster. Its primary functions include:

Detecting undeleted replication queues These queues may remain after RegionServer failures or other operational issues. With --fix, the command attempts to delete these stale queues.
Checking replication barriers for specified tables If table names are provided—either directly or through an input file—the command inspects replication barriers for those tables. With --fix, it purges outdated or unnecessary barriers.

Cleaning up stale replication metadata helps ensure smooth and consistent replication behavior across the cluster.

Bash
    
 
hbase hbck -j <path-to-hbck2-jar> replication
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Bash
    
 
hbase hbck -j <path-to-hbck2-jar> replication --fix myreplicatedtable
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Bash
    
 
hbase hbck -j <path-to-hbck2-jar> replication --fix -i fileName1
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Last updated on Nov 13, 2025

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