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condor_findhost(1) [debian man page]

condor_findhost(1)					      General Commands Manual						condor_findhost(1)

Name
       condor_findhost find - machine(s) in the pool that can be used with minimal impact on currently running Condor jobs and best meet any spec-
       ified constraints

Synopsis
       condor_findhost [-help] [-m] [-n num] [-c c_expr] [-r r_expr] [-p centralmanagerhostname]

Description
       condor_findhostsearches a Condor pool of machines for the best machine or machines that will have the minimum impact on running Condor jobs
       if  the machine or machines are taken out of the pool. The search may be limited to the machine or machines that match a set of constraints
       and rank expression.

       condor_findhostreturns a fully-qualified domain name for each machine. The search is limited (constrained) to a specific  set  of  machines
       using  the  -coption. The search can use the -roption for rank, the criterion used for selecting a machine or machines from the constrained
       list.

Options
       -help

	  Display usage information and exit

       -m

	  Only search for entire machines. Slots within an entire machine are not considered.

       -n num

	  Find and list up to nummachines that fulfill the specification. numis an integer greater than zero.

       -c c_expr

	  Constrain the search to only consider machines that result from the evaluation of c_expr. c_expris a ClassAd expression.

       -r r_expr

	  r_expris the rank expression evaluated to use as a basis for machine selection. r_expris a ClassAd expression.

       -p centralmanagerhostname

	  Specify the pool to be searched by giving the central manager's host name. Without this option, the current pool is searched.

General Remarks
       condor_findhostis used to locate a machine within a pool that can be taken out of the pool with the least disturbance of the pool.

       An administrator should set preemption requirements for the Condor pool. The expression

       (Interactive =?= TRUE )

       will let condor_findhostknow that it can claim a machine even if Condor would not normally preempt a job running on that machine.

Exit Status
       The exit status of condor_findhostis zero on success. If not able to identify as many machines as requested, it returns one more  than  the
       number  of  machines identified. For example, if 8 machines are requested, and condor_findhostonly locates 6, the exit status will be 7. If
       not able to locate any machines, or an error is encountered, condor_findhostwill return the value 1.

Examples
       To find and list four machines, preferring those with the highest mips (on Drystone benchmark) rating:

       condor_findhost	-n 4 -r "mips"

       To find and list 24 machines, considering only those where the  kflops attribute is not defined:

       condor_findhost	-n 24 -c "kflops=?=undefined"

Author
       Condor Team, University of Wisconsin-Madison

Copyright
       Copyright (C) 1990-2012 Condor Team, Computer Sciences Department, University of  Wisconsin-Madison,  Madison,  WI.  All  Rights  Reserved.
       Licensed under the Apache License, Version 2.0.

       See the Condor Version 7.8.2 Manualor http://www.condorproject.org/licensefor additional notices.

       condor-admin@cs.wisc.edu

								  September 2012						condor_findhost(1)

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condor_reconfig(1)					      General Commands Manual						condor_reconfig(1)

Name
       condor_reconfig Reconfigure - Condor daemons

Synopsis
       condor_reconfig [-help -version]

       condor_reconfig[-debug]	[-pool	centralmanagerhostname[:portnumber]]  [-name  hostnamehostname-addr  "<a.b.c.d:port>""<a.b.c.d:port>"-con-
       straint expression-all] [-daemon daemonname]

Description
       condor_reconfigreconfigures all of the Condor daemons in accordance with the current status  of	the  Condor  configuration  file(s).  Once
       reconfiguration	is  complete, the daemons will behave according to the policies stated in the configuration file(s). The main exception is
       with the  DAEMON_LIST variable, which will only be updated if the condor_restartcommand is used. Other  configuration  variables  that  can
       only  be  changed  if  the Condor daemons are restarted are listed in section 3.3.1on page . In general, condor_reconfigshould be used when
       making changes to the configuration files, since it is faster and more efficient than restarting the daemons.

       The command condor_reconfigwith no arguments or with the -daemon masteroption will cause the reconfiguration of the condor_masterdaemon and
       all the child processes of the condor_master.

       For  security  purposes	(authentication  and authorization), this command requires an administrator's level of access. See section 3.6.1on
       page for further explanation.

Options
       -help

	  Display usage information

       -version

	  Display version information

       -debug

	  Causes debugging information to be sent to  stderr , based on the value of the configuration variable  TOOL_DEBUG

       -pool centralmanagerhostname[:portnumber]

	  Specify a pool by giving the central manager's host name and an optional port number

       -name hostname

	  Send the command to a machine identified by hostname

       hostname

	  Send the command to a machine identified by hostname

       -addr <a.b.c.d:port>

	  Send the command to a machine's master located at "<a.b.c.d:port>"

       <a.b.c.d:port>

	  Send the command to a machine located at "<a.b.c.d:port>"

       -constraint expression

	  Apply this command only to machines matching the given ClassAd expression

       -all

	  Send the command to all machines in the pool

       -daemon daemonname

	  Send the command to the named daemon. Without this option, the command is sent to the condor_masterdaemon.

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

Examples
       To reconfigure the condor_masterand all its children on the local host:

       % condor_reconfig

       To reconfigure only the condor_startdon a named machine:

       % condor_reconfig  -name bluejay -daemon startd

       To reconfigure a machine within a pool other than the local pool, use the -pooloption. The argument is the name of the central manager  for
       the  pool.  Note  that one or more machines within the pool must be specified as the targets for the command. This command reconfigures the
       single machine named cae17within the pool of machines that has condor.cae.wisc.eduas its central manager:

       % condor_reconfig  -pool condor.cae.wisc.edu -name cae17

Author
       Condor Team, University of Wisconsin-Madison

Copyright
       Copyright (C) 1990-2012 Condor Team, Computer Sciences Department, University of  Wisconsin-Madison,  Madison,  WI.  All  Rights  Reserved.
       Licensed under the Apache License, Version 2.0.

       See the Condor Version 7.8.2 Manualor http://www.condorproject.org/licensefor additional notices. condor-admin@cs.wisc.edu

								  September 2012						condor_reconfig(1)

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