update a machine ClassAd condor_update_machine_ad<single: condor_update_machine_ad; HTCondor commands>
condor_update_machine_ad command
condor_update_machine_ad [-help | -version ]
condor_update_machine_ad [-pool centralmanagerhostname[:portnumber]] [-name startdname] path/to/update-ad
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.
- -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
This tool is intended for the use of system administrators when dealing with offline universes.
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.
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.