RESTARTLOG
Purpose
The RESTARTLOG parameter specifies the restart log name for ARCMAIN.
Syntax
Usage Notes
The RESTARTLOG runtime option is available only on Windows platforms. (The restart
log name on z/OS platforms cannot be changed by RESTARTLOG.)
Use the RESTARTLOG as follows:
Teradata ARC adds the extension type RLG to the name of the file specified in RESTARTLOG.
Therefore, do not use this extension in the name of the restart log.
The restart log is created under the current directory or the working directory, if
defined, unless the full path is specified.
If RESTARTLOG is not specified, database DBCLOG is the default name of the restart
log on the IBM platform. On other platforms, yymmdd_hhmmss is date and time, and <n> is the process ID in the following example of a default restart log name: ARCLOGyymmdd_hhmmss_<n>.RLG.
Teradata ARC does not automatically remove the restart log files after the successful
completion, therefore clean the files periodically.
Delimiters depend on the name of the restart log being specified.
On non-IBM platforms, all restart log names should be unique to prevent unintentional
sharing of the restart log among multiple jobs. The restart log contains status information
about the ARC job being executed and if multiple jobs specify the same restart log
name those jobs could share usage of the same restart log if those jobs are run at
the same time. Shared usage of a restart log could lead to unpredictable results since
multiple jobs will be updating the same file at the same time. This is particularly
important for cluster jobs and multi-stream jobs but would also apply to any set of
ARC jobs that are executed at the same time.
Note: The RESTARTLOG runtime parameter only applies to Mainframe systems (z/OS). Restart
of Teradata ARC is no longer supported on network-attached systems.
Example
RESTARTLOG=RESTARTLOG
RLOG=’C:\TESTARC\JOB12345’
