Nonstop Database, HiRDB Version 9 System Operation Guide

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9.2.1 Modification procedure

The following procedures show how to modify HiRDB system definitions with the system reconfiguration command.

Procedure
  1. Create a $PDDIR/conf/chgconf directory.
  2. Copy the current HiRDB system definition files into the directory that you created in step 1.
  3. Modify the HiRDB system definitions in the $PDDIR/conf/chgconf directory.
  4. Use the pdconfchk -d command to check the HiRDB system definitions in the $PDDIR/conf/chgconf directory. If errors are detected, correct each erroneous HiRDB system definition, and then execute the pdconfchk command again.
  5. Use the pdchgconf command to replace the current HiRDB system definitions with the HiRDB system definitions that you modified. When the pdchgconf command is entered, the HiRDB system definition files currently being used (the unchanged files) are moved into the $PDDIR/conf/backconf directory, and the modified HiRDB system definition files in the $PDDIR/conf/chgconf directory are copied into the $PDDIR/conf directory.
After you execute this command, we recommend that you check that the execution results are correct. For details about checking command execution results, see the manual HiRDB Version 9 Command Reference.

Notes
  • Assign HiRDB administrator write and access privileges for the $PDDIR/conf, $PDDIR/conf/chgconf, and $PDDIR/conf/backconf directories, and for all files under these directories.
  • To use the automatic reconnect facility, specify YES for the PDAUTORECONNECT operand of the client environment definition. When you use this facility, you can continue processing without returning an error to the UAP even if the connection to the HiRDB server is terminated.
  • If a transaction or a utility remains active continuously for 15 minutes after the pdchgconf command has been entered, the command terminates abnormally.