Name

       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_startddaemon's machine ClassAd. The ClassAd in the
       file  given  by  path/to/update-adrepresents  the  changed  attributes.  The  changes  persists until the
       condor_startdrestarts. If no file is specified on the command line,  condor_update_machine_ad  reads  the
       update ClassAd from stdin.

       Contents  of  the  file or stdinmust contain a complete ClassAd. Each line mustbe 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_startdto regenerate values for other  ClassAd
       attributes.  An  example  of  this is setting HasVM. This will cause OfflineUniverses, VMOfflineTime, and
       VMOfflineReasonto 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 stdina 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 stdinmay be preferable in these situations, because  neither  quoting  nor
       escape characters are needed.

Exit Status

       condor_update_machine_adwill exit with a status value of 0 (zero) upon success, and it will exit with the
       value 1 (one) upon failure.

Author

       Center for High Throughput Computing, University of Wisconsin–Madison

Copyright

       Copyright  ©  1990-2016 Center for High Throughput Computing, Computer Sciences Department, University of
       Wisconsin-Madison, Madison, WI. All Rights Reserved. Licensed under the Apache License, Version 2.0.

                                                  January 2020                       condor_update_machine_ad(1)