Help Center/ MapReduce Service/ Component Operation Guide (LTS) (Ankara Region)/ Using HBase/ Common Issues About HBase/ How Do I Fix Region Overlapping?
Updated on 2024-11-29 GMT+08:00
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How Do I Fix Region Overlapping?

Question

When the HBaseFsck tool is used to check the region status, if the log contains ERROR: (regions region1 and region2) There is an overlap in the region chain or ERROR: (region region1) Multiple regions have the same startkey: xxx, overlapping exists in some regions. How do I solve this problem?

Answer

To rectify the fault, perform the following steps:

  1. Run the hbase hbck -j ${CLIENT_HOME}/HBase/hbase/tools/hbase-hbck2-1.1.0-h0.cbu.mrs.*.jar fixInconsistencies tableName command to repair the tables whose regions overlap.
  2. Run the hbase hbck -j ${CLIENT_HOME}/HBase/hbase/tools/hbase-hbck2-1.1.0-h0.cbu.mrs.*.jar listInconsistencies -run tableName command to check whether the region of the restored table overlaps.

    • If overlapping does not exist, go to 3.
    • If overlapping exists, go to 1.

  3. Log in to FusionInsight Manager and choose Cluster > Services > HBase. Click More and select Perform HMaster Switchover to complete the HMaster active/standby switchover.
  4. Run the hbase hbck -j ${CLIENT_HOME}/HBase/hbase/tools/hbase-hbck2-1.1.0-h0.cbu.mrs.*.jar listInconsistencies -run tableName command to verify whether the problem is solved.

    • If overlapping does not exist, no further action is required.
    • If overlapping still exists, start from 1 to perform the recovery again.