ENQ/DEQ
- The affinity here is between all transactions that ENQ or DEQ
on a given resource. The match is made on the resource.
- It is possible for the ENQ/DEQ resource to be either a character
string of length 1 to 255 bytes, or an address (which has an implied
length of 4 bytes).
- The affinity relation can be GLOBAL, BAPPL, or USERID.
- Lifetime is always SYSTEM.
- Commands that result in a LENGERR condition are grouped together
and treated as a resource of ’LENGERR’. Any other condition results
in a valid resource and does not affect the treatment of the command.
- Because of affinity record size limitations, character string
resources of greater than 207 bytes in length are compressed to 207
bytes. The compression is achieved by removing bytes from the middle
of the string (these are probably less significant than those at either
end). This means that such resources may be flagged as being the same
when they are not, if the only variation is in the removed bytes.
Check all such compressed resources to see if that is the case. The
Reporter flags such compression, and pads the resource back out to
the correct length for the report, by inserting ’?’ characters.