condor_update_machine_ad (1) Linux Manual Page
condor_update_machine_ad 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.