condor_fetchlog

Retrieve a daemon’s log file that is located on another computer

Synopsis

condor_fetchlog [-help | -version]

condor_fetchlog [-pool  centralmanagerhostname[:portnumber]] [-master | -startd | -schedd | -collector | -negotiator | -kbdd] machine-name subsystem[.extension]

Description

condor_fetchlog contacts HTCondor running on the machine specified by machine-name, and asks it to return a log file from that machine. Which log file is determined from the subsystem[.extension] argument. The log file is printed to standard output. This command eliminates the need to remotely log in to a machine in order to retrieve a daemon’s log file.

For security purposes of authentication and authorization, this command requires ADMINISTRATOR level of access.

The subsystem[.extension] argument is utilized to construct the log file’s name. Without an optional .extension, the value of the configuration variable named subsystem_LOG defines the log file’s name. When specified, the .extension is appended to this value.

The subsystem argument is any value $(SUBSYSTEM) that has a defined configuration variable of $(SUBSYSTEM)_LOG, or any of

• NEGOTIATOR_MATCH
• HISTORY
• STARTD_HISTORY

A value for the optional .extension to the subsystem argument is typically one of the three strings:

1. .old
2. .slot<X>
3. .slot<X>.old

Within these strings, <X> is substituted with the slot number.

A subsystem argument of STARTD_HISTORY fetches all condor_startd history by concatenating all instances of log files resulting from rotation.

Options

-help

Display usage information

-version

Display version information

-pool centralmanagerhostname[:portnumber]

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

-master

Send the command to the condor_master daemon (default)

-startd

Send the command to the condor_startd daemon

-schedd

Send the command to the condor_schedd daemon

-collector

Send the command to the condor_collector daemon

-kbdd

Send the command to the condor_kbdd daemon

Examples

To get the condor_negotiator daemon’s log from a host named head.example.com from within the current pool:

To get the condor_startd daemon’s log from a host named execute.example.com from within the current pool:

This command requested the condor_startd daemon’s log from the condor_master. If the condor_master has crashed or is unresponsive, ask another daemon running on that computer to return the log. For example, ask the condor_startd daemon to return the condor_master’s log:

Exit Status

condor_fetchlog will 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 © 1990-2018 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.

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