Man page - condor_update_machine_ad(1)
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apt-get install condor
Manual
| CONDOR_UPDATE_MACHINE_AD(1) | HTCondor Manual | CONDOR_UPDATE_MACHINE_AD(1) |
NAME
condor_update_machine_ad - HTCondor Manual
update a machine ClassAd
SYNOPSIS
condor_update_machine_ad [-help | -version ]
condor_update_machine_ad [-pool centralmanagerhostname[:portnumber]] [-name startdname] path/to/update-ad
DESCRIPTION
condor_update_machine_ad modifies the specified condor_startd daemon's machine ClassAd. The ClassAd in the file given by path/to/update-ad represents the changed attributes. The changes persists until the condor_startd restarts. If no file is specified on the command line, condor_update_machine_ad reads the update ClassAd from stdin.
Contents of the file or stdin must contain a complete ClassAd. Each line must be terminated by a newline character, including the last line of the file. Lines are of the form
<attribute> = <value>
Changes to certain ClassAd attributes will cause the condor_startd to regenerate values for other ClassAd attributes. An example of this is setting HasVM. This will cause OfflineUniverses, VMOfflineTime, and VMOfflineReason to change.
OPTIONS
- -help
- Display usage information and exit
- -version
- Display the HTCondor version and exit
- -pool centralmanagerhostname[:portnumber]
- Specify a pool by giving the central manager's host name and an optional port number
- -name startdname
- Send the command to a machine identified by startdname
GENERAL REMARKS
This tool is intended for the use of system administrators when dealing with offline universes.
EXAMPLES
To re-enable matching with the VM universe jobs, place on stdin a complete ClassAd (including the ending newline character) to change the value of ClassAd attribute HasVM:
$ echo "HasVM = True " | condor_update_machine_ad
To prevent vm universe jobs from matching with the machine:
$ echo "HasVM = False " | condor_update_machine_ad
To prevent vm universe jobs from matching with the machine and specify a reason:
$ echo "HasVM = False VMOfflineReason = \"Cosmic rays.\" " | condor_update_machine_ad
Note that the quotes around the reason are required by ClassAds, and they must be escaped because of the shell. Using a file instead of stdin may be preferable in these situations, because neither quoting nor escape characters are needed.
EXIT STATUS
condor_update_machine_ad will exit with a status value of 0 (zero) upon success, and it will exit with the value 1 (one) upon failure.
AUTHOR
HTCondor Team
COPYRIGHT
1990-2024, Center for High Throughput Computing, Computer Sciences Department, University of Wisconsin-Madison, Madison, WI, US. Licensed under the Apache License, Version 2.0.
| March 8, 2026 |