| DISPATCHER = {Y |
Yes,
No}
|
The
DISPATCHER parameter is used to set dispatcher on or off for the ESB Interface.
|
| MSGFREE-LIST-SIZE = {3000 |
number}
|
The
MSGFREE-LIST-SIZE parameter is used to dynamically set the messages free list size. The valid range is from
0 to
300000. The default value is
0.
|
| MSGSEND = {Y |
Yes,
No}
|
The
MSGSEND parameter indicates whether messages are to be sent for this ESB Interface when it serves a RED Interface.
|
| RV-EQ-MAX-EVENTS = {20000 |
number}
|
The
RV-EQ-MAX-EVENTS parameter determines the maximum number of events that are held in the dispatcher queue for Substation ES to process.
The valid range is from
0 to
300000. The default value is
20000.
Note the following conditions about the values:
- RV-EQ-MAX-EVENTSZero (0) is a special value that allows an unlimited number of events. When the
RV-EQ-MAX-EVENTS value is set to
0, the
RV-EQ-POLICY policy must be set to
TIBRVQUEUE_DISCARD_NONE.
- If the
RV-EQ-POLICY policy is not set to
TIBRVQUEUE_DISCARD_NONE or
TIBRVQUEUE_DISCARD_NEW, Substation ES discards up to 50% of the events in the queue when the
RV-EQ-MAX-EVENTS limit is reached. A minimum of one event is always discarded.
- If the
RV-EQ-POLICY policy is set to
TIBRVQUEUE_DISCARD_NEW, Substation ES always discards one of the events in the queue when the
RV-EQ-MAX-EVENTS limit is reached.
- For more information about the
tibrvQueue_SetLimitPolicy() parameter, see the
TIBCO Rendezvous C Reference documentation.
|
| RV-EQ-POLICY = {2 |
number}
|
The
RV-EQ-POLICY parameter sets the policy for dispatcher queue.
A specified value determines how Rendezvous discards events from the queue when the number of events exceeds the value of the
RV-EQ-MAX-EVENTS parameter. The valid values are:
- 0:
TIBRVQUEUE_DISCARD_NONE
- 1:
TIBRVQUEUE_DISCARD_NEW
- 2:
TIBRVQUEUE_DISCARD_FIRST
- 3:
TIBRVQUEUE_DISCARD_LAST
The default value is
2.
For more information about the
tibrvQueue_SetLimitPolicy() parameter, see the
TIBCO Rendezvous C Reference documentation.
|
| RVDQ-IDENTITY ={name} (Optional)
|
The value in this parameter is concatenated to the end of the Rendezvous distributed queue name, ensuring that the Rendezvous distributed queue name is unique on the network.
The name given here must follow the Rendezvous distributed queue naming conventions.
|
| RVDQ-MEM-LIMIT ={100 |
number} (Optional)
|
The
RVDQ-MEM-LIMIT parameter sets the maximum amount of memory that the ESB can use, in KB.
When the specified limit is reached, the ESB rejects incoming messages until the memory in use falls below the limit.
The valid values range from
0 to
3000. The default value is
100.
|
| RVDQ-MSG-LIMIT ={100 |
number} (Optional)
|
The
RVDQ-MSG-LIMIT parameter sets the maximum number of messages that can be in the queue.
When the specified limit is reached, the ESB rejects incoming messages until the number of messages in the queue falls below the limit.
The valid values range from
0 to
100000. The default value is
100.
|
| RVDQ-SCHEDULER ={0 |
5 |
number} (Optional)
|
The
RVDQ-SCHEDULER parameter determines whether the ESB is a worker or scheduler in the distributed queue. The valid values are:
- 0: designates the ESB as a worker. The ESB will never be the scheduler.
- 5: indicates that the ESB is always the scheduler.
- All other numbers allow the ESB to act as the scheduler if required. The higher the number, the more likely this ESB will become the scheduler.
The default value is
0.
|
| RVDQ-WORKERS ={0 |
number}
|
The
RVDQ-WORKERS parameter determines the number of worker tasks for each listener. Valid values are from
0 to
50.
0 is a special value that indicates no worker is assigned.
The default value is
0.
|
| RVDQ-YN = {N |
Yes,
No}
|
If you set the value to
Y, the Rendezvous distributed queue processing is enabled on an ESB interface. Normally, you have two or more ESB interfaces with this value set. Those interfaces are usually in their own Substation ES regions, in which messages coming into Substation ES are processed only once and are distributed among each interface that is enabled with distributed queue processing.
Note: Do not set this value to
Y if only one interface participates in a distributed queue.
Each interface must share the same set of subjects when participating in a distributed queue environment. You can define multiple Rendezvous interfaces in a single Substation ES instance, with one performing normal Rendezvous tasks and another performing distributed-queue tasks.
This parameter offers several advantages. Distributing the workload across Substation ES instances and fault tolerance are the most common uses. For details about distributed queue operations, see the Rendezvous documentation.
|
