HP NonStop G-Series - Manual (Page 110)

NonStop AutoTMF Software Commands
HP NonStop AutoTMF Software User’s Guide—429952-014
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ALTER GLOBAL
The default AUTOCOMMIT value is 115 minutes, based on the default TMF
AUTOABORT time limit of 120 minutes.
The runtime monitors automatic transactions to determine those that have
been active for more than the selected time. The process must be active, either
receiving messages on $RECEIVE or performing database positioning
operations. Processes in a "wait" state are not monitored for long transactions.
If any automatic transaction has exceeded the AUTOCOMMIT time, the
NonStop AutoTMF software runtime will take the following actions:
1. force the commit of all automatic transactions,
2. issue an EMS message,
3. terminate the process with an abend.
The program will have to be restarted but no data will be lost.
To set this value for specific files, use command ADD ATMFFILESET or
ALTER ATMFFILESET and for specific programs, use command ADD
ATMFPROGRAMS or ALTER ATMFPROGRAMS .
ATMFCOMMONTX { ON | OFF }
enables or disables the generation of automatic transactions under a common
transaction whenever the transactions are needed for audited file access.
The default is ON.
If set to OFF, you must configure the access to audited files with automatic
transactions using the
ADD ATMFFILESET or ADD ATMFPROGRAMS
command.
The default is ON.
ATMFISOLATION { WEAK | NORMAL | STRONG }
level of transaction isolation for automatic transactions:
•
WEAK isolation commits outstanding transactions whenever a process
replies to a request or waits for a new request. This is the default.
•
NORMAL isolation commits outstanding transactions whenever a process
sends a request to another process.
•
STRONG isolation commits outstanding transactions whenever the
process does one of the following:
°
issues a READ or a WRITE to a device
°
issues a WRITE to a non-audited disk file
ISOLATION can also be set for selected programs using the ADD
ATMFPROGRAMS command.