Fujitsu UDS/SQL V2.5 Manuel D’Utilisation
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Glossary
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U929-J-Z125-9-76
TANGRAM
(Task and Group Affinity Management) Subsystem of BS2000/OSD that plans
the allocation of processors for task groups which access large quantities of
shared data in multi-task applications.
the allocation of processors for task groups which access large quantities of
shared data in multi-task applications.
task attribute TP
There are 4 task attributes in BS2000/OSD: SYS, TP, DIALOG and BATCH.
Special runtime parameters that are significant for task scheduling are assigned
to each of these task attributes.
In contrast to the other task attributes, the TP attribute is characterized by
optimized main memory management that is specially tailored to transaction
processing requirements.
Special runtime parameters that are significant for task scheduling are assigned
to each of these task attributes.
In contrast to the other task attributes, the TP attribute is characterized by
optimized main memory management that is specially tailored to transaction
processing requirements.
task communication
Communication between the DBH modules. See also common pool.
task deadlock
See deadlock.
task priority
In BS2000/OSD, it is possible to define a priority for a task. This priority is taken
into account when initiating and activating the task.
Priorities may be fixed or variable. Variable priorities are adapted dynamically;
fixed priorities do not change.
Note that UDS/SQL server tasks should be started with a fixed priority in order
to ensure consistent performance.
into account when initiating and activating the task.
Priorities may be fixed or variable. Variable priorities are adapted dynamically;
fixed priorities do not change.
Note that UDS/SQL server tasks should be started with a fixed priority in order
to ensure consistent performance.
TCUA
See Transaction Currency Area.
time acknowledgment
Message sent by the UDS-D task to the remote application program to indicate
that there is still a DML statement being processed.
that there is still a DML statement being processed.
transaction (TA)
Related sequence of DML statements which is processed by UDS/SQL either
as a whole or not at all. This method ensures that the database(s) is/are always
in a consistent state.
For UDS-D:
The total set of subtransactions active at a given time.
as a whole or not at all. This method ensures that the database(s) is/are always
in a consistent state.
For UDS-D:
The total set of subtransactions active at a given time.
transaction, committing a
Terminating a transaction with FINISH, i.e. all updates performed within the
transaction are committed to the database.
transaction are committed to the database.