Chapter 3. Operating NetView FTP V2.2.1 MVS - IBM

What to Do when the Request Queue Overflows
The request queue “overflows” when it receives more requests than it can contain.
When this happens the queue handler rejects all attempts to add more file-transfer
requests to the request queue, and initiates an automatic rebuild of the request
queue.
During a queue rebuild, the queue handler deletes all requests that have finished
successfully and have had the status finished for longer than the time specified in
the DELAY initialization parameter for the queue handler. During the time the
queue handler rebuilds the request queue it does not accept any commands that
access the request queue.
Automatic rebuilding can fail if there are no successfully finished file-transfer
requests for which the delay time has elapsed. To remedy this, initiate a request
queue rebuild with a shorter delay time. How to do this is explained in “Initiating a
Request-Queue Rebuild” on page 59. You can then ask your users to delete any
file-transfer requests they no longer need, for example:
� Specific file-transfer requests
� All their successfully finished file-transfer requests
� All their file-transfer requests.
Besides that you can ask your users to restart all file-transfer requests that are
manually restartable.
If you know the NetView FTP V2.2.1 MVS master password you can do this for
other users.
If your request queue overflows frequently, you can increase its size. To do this:
1. Stop NetView FTP V2.2.1 MVS. How to do this is described in “Stopping the
Queue Handler” on page 63.
2. Unload the request queue using IDCAMS with the REPRO command.
3. Modify the job used to define the request queue. Increase the value of the
RECORD parameter.
Modify the QUANTITY of the second CREATE statement in the request queue
initialization job. How to do this is described in “Defining and Initializing the
Request Queue” on page 67.
4. Run the request queue initialization job.
5. Reload the request queue using IDCAMS with the REPRO command.
6. Restart NetView FTP V2.2.1 MVS. How to do this is described in Chapter 10,
“Writing Startup Procedures for NetView FTP V2.2.1 MVS” on page 95.
To enable automated operations on the request queue data set, the I/O error messages
DVG043I, DVG045I, and DVG670I are written to the operator console.
Chapter 4. Setting Up and Maintaining the Request Queue 71