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FCDSRECD
A resource name of FCDSRECD indicates a wait for a record lock in a VSAM file or CICS-maintained data table.
When a transaction updates a record in a VSAM file or CICS-maintained data table, locking occurs at two levels. VSAM locks the CI when the record has been read, and CICS locks the record.
The CI lock is released as soon as the REWRITE (or UNLOCK) request is completed. However, if the file or data table is recoverable, the record is not unlocked by CICS until the updating transaction has reached a syncpoint. This is to ensure that data integrity is maintained if the transaction fails before the syncpoint and the record has to be backed out.
If a transaction attempts to access a record that is locked by another transaction, it is suspended on resource type ENQUEUE until the lock is released. This can be a long wait, because an update might depend on a terminal operator typing in data. Also, the suspended transaction relinquishes the VSAM string and, perhaps, its exclusive control of the CI, and has to wait once more for those resources.
If transactions are commonly made to wait for this reason, you should review the programming logic of your applications to see if the record-locking time can be minimized.
Note that CICS only locks a record for update. Other transactions are allowed to read the record, and this presents a potential read integrity exposure. Thus a transaction might read a record after an update has been made, but before the updating transaction has reached its syncpoint. If the reading transaction takes action based on the value of the record, the action is incorrect of the record has to be backed out.