The following parameters can be entered using DDCARD input. The PRODUCT parameter is mandatory. All other parameters are optional.
| Parameter | Usage |
|---|---|
| CT | Command timeout limit. |
| FORCE | Overwrite ID table entry. |
| LOCAL | Define an isolated daemon. |
| LU | Length of intermediate user buffer. |
| MAXTTD | Limit number of thread timeout dumps. |
| MPMWTO | Display information messages. |
| NABS | Number of attached buffers. |
| NC | Number of command queue elements. |
| PRODUCT | Identify the services to be made available. Mandatory. |
| Parameter | Use | Mimimum | Maximum | Default |
|---|---|---|---|---|
| CT | The maximum number of seconds (more precisely, units of 1.048576 seconds) that can elapse from the time a daemon request is completed until the results are retrieved by the sender through the interregion communication. | 1 | 16,777,215 | 60 |
This parameter is used to prevent a request queue element (RQE) and attached buffer from being held indefinitely when a user with an outstanding request terminates abnormally.
Possible causes of a command timeout are
address space is swapped out or cannot be dispatched;
the task is cancelled or ABENDed;
the task has low priority in a high-activity system.
| Parameter | Use | Possible Values | Default |
|---|---|---|---|
| FORCE | Specify whether or not this daemon is to force an entry into the active node list. | YES | NO | NO |
Possible values:
FORCE=YES: Force an active entry, if one is
available.
FORCE=YES is usually not required. However, it
may be needed if the previous daemon session ended abnormally, leaving the old
entry in the active node list. Use this setting carefully.
FORCE=NO: Causes an error if the node used by
this daemon already appears in the active node list.
| Parameter | Use | Possible Values | Default |
|---|---|---|---|
| LOCAL | Specify whether or not a daemon is to be isolated from other Entire Net-Work nodes. | YES | NO | NO |
Possible values:
LOCAL=YES: Isolates this daemon from other
Entire Net-Work nodes.
LOCAL=NO: The daemon can receive calls from
other Entire Net-Work nodes.
| Parameter | Use | Mimimum | Maximum | Default |
|---|---|---|---|---|
| LU | Set the size of the intermediate user buffer area. | 4000 | 65,535 | 65,535 |
The size specified must be large enough to accommodate all control information for commands passed to the node.
An error occurs if the LU parameter specifies a
value greater than the byte count implied by the NAB
parameter. If you change either parameter value, you may have to change them
both.
| Parameter | Use | Possible Values | Default |
|---|---|---|---|
| MAXTTD | Limit the number of thread timeout dumps produced. | 0-99999 | No limit |
When the SYSCO daemon loses contact with a database it issues message
"CORD045E Thread Timeout", and produces a dump of internal control blocks for
diagnostic purposes. Since a thread timeout is often a normal response, the
dumps are usually not required, and can fill dump / listing files.
MAXTTD can be used to limit the number of thread timeout
dumps produced. If MAXTTD=0 is specified, all thread
timeout dumps will be eliminated.
| Parameter | Use | Possible Values | Default |
|---|---|---|---|
| MPMWTO | Specify whether or not to display information level (l-level) messages. | YES | NO | NO |
By default, information level (I-level) messages are suppressed.
| Parameter | Use | Mimimum | Maximum | Default |
|---|---|---|---|---|
| NABS | Specify the number of attached buffers to be used. | 0 | 500,000 | 16 |
An attached buffer is an internal buffer used for communication with the daemon.
For Adabas System Coordinator, this is an optional parameter that defines the number of attached buffers to be used for receiving requests from clients or from other daemon peers.
An attached buffer pool is allocated with a size equal to the value of
the NABS parameter multiplied by 4096 bytes.
| Parameter | Use | Mimimum | Maximum | Default |
|---|---|---|---|---|
| NC | Set the maximum number of command queue elements. | 20 | 32,767 | 100 |
The maximum number of command queue elements (CQEs) that can be processed simultaneously by this daemon.
| Parameter | Use | Possible Values | Default |
|---|---|---|---|
| PRODUCT |
Specifies which product services are to be made available by Adabas System Coordinator:
|
AFP |
none |
This parameter is used once for each service that is to be made available by the daemon.
The minimum is usually PRODUCT=CAS. Sites that
use Adabas Fastpath will also require PRODUCT=AFP. Sites
that use Adabas Vista or Adabas Transaction Manager and wish to support dynamic
transaction routing in a clustered application will require
PRODUCT=AVI and/or
PRODUCT=ATM.
