Run the Tanker Accessory

For each DMSII database, you must run Tanker.

  • First, to create a parameter file for the specified database
  • Second, to put the Tanker accessory in the mix, where it runs continuously until you terminate it

Whenever you start WFL/DATABRIDGE/TANKER, Tanker looks for the last commit in the filtered audit file and resumes filtering from that point. Tanker performs a commit at the end of each transaction group and then updates the header.

To run Tanker

  1. Define the filters you want to use in DATA/GENFORMAT/databasename/CONTROL. See Creating a Filter.
  2. Compile a tailored support library. See Tailoring a Support Library.
  3. From CANDE, start Tanker by entering one of the following commands. You must include the quotation marks.

    START WFL/DATABRIDGE/TANKER ("databasename")

    where databasename indicates the title of the DESCRIPTION file without the DESCRIPTION node.

    — or —

    START WFL/DATABRIDGE/TANKER ("databasename", "logicaldatabasename")



    indicates that Tanker should use this file


    When you run Tanker, a parameter file (such as, DATA/TANKER/databasename/CONTROL) is created.

  4. Edit the parameter file that was created in step 3 to include all of the filters you created via the DBGenFormat utility in step 1.
  5. Run Tanker again using the following syntax. You must include the quotation marks.

    START WFL/DATABRIDGE/TANKER ("databasename")

    — or —

    START WFL/DATABRIDGE/TANKER ("databasename", "logicaldatabasename")

    This time, Tanker uses the Tanker parameter file (DATA/TANKER/databasename/CONTROL or DATA/TANKER/logicaldatabasename/CONTROL) to filter audit files according to the filters you created.

    Note: If the DBEngine parameter file has READ ACTIVE AUDIT = TRUE, Tanker can filter up to (and include) the active audit file.

  6. Make sure that each user-written accessory that uses pre-filtered audit files calls the DBINITFILTER entry point in the Engine. For more information, see Preparing Accessories for Tanker.
  7. To check the status of Tanker or to terminate it, see the next section, Tanker Commands.