Scalable Database Server, HiRDB Version 8 Command Reference

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10.1.3 Execution environment

  1. You can execute the rebalancing utility only when HiRDB is active.
  2. You can execute the rebalancing utility at the server machine containing the single server or the server machine where the system manager is located.
  3. To execute the rebalancing utility, set the LANG environment variable. For details about LANG, see the HiRDB Version 8 UAP Development Guide.
  4. Whether or not you can execute the rebalancing utility depends on the open attribute and status of the RDAREAs that contain the rebalancing table and indexes. For details about whether or not the rebalancing utility can be executed, see Appendix C. RDAREA Status During Command Execution.
  5. When a recovery-unnecessary front-end server is used, whether or not pdrbal is executable depends on the applicability of the recovery-unnecessary front-end server and the operating status of the front-end servers, as shown below:
    Recovery-unnecessary front-end server Whether or not pdrbal is executable
    Front-end servers that have not been applied Front-end servers that have been applied
    All active None Y
    Some inactive N (because the front-end server is inactive)
    All inactive N (because the table definition cannot be acquired)
    All active All active Y
    Some inactive Y
    All inactive Y
    None All active Y
    Some inactive Y
    All inactive N (because the table definition cannot be acquired)

Legend:
Y: Executable
N: Not executable