Download Condor 7.8.1

The Condor Team at the University of Wisconsin-Madison has released a new stable version of its workload management system Condor. The version number has landed at 7.8.1 and the package is under the Apache 2.0 License issued. Condor focuses on the management of compute-intensive tasks and can distribute them over several connected nodes. The user sends his task to Condor, after which it handles the process based on set policies and the availability of connected resources, and finally sends the results back to the user. Condor can, for example, control a dedicated Beowulf cluster, but also regular desktops that have nothing to do for a while. The announcement with the list of changes to this release is as follows:

Condor 7.8.1 released!

The Condor Team is pleased to announce the release of Condor 7.8.1. This release fixes several important bugs in 7.8.0 and earlier versions of Condor. See the Version History for a complete list of changes.

New Features:

• none.

Configuration Variable and ClassAd Attribute Additions and Changes:

• (Added in 7.8.0.) The new configuration variable ENABLE_DEPRECATION_WARNINGS causes condor_submit to issue warnings when a job requests features that are no longer supported. (Ticket #2968).
• (Added in 7.7.6) The new configuration variable BATCH_GAHP should be used instead of PBS_GAHP , LSF_GAHP and SGE_GAHP . These older configuration variables are still recognized, but their use is now discouraged. (Ticket #2670).
• The default value for GROUP_SORT_EXPR was changed so that the group would always negotiate last when using hierarchical group quotas. Associated with that, the default value for NEGOTIATOR_ALLOW_QUOTA_OVERSUBSCRIPTION was changed to True. These changes were made to make negotiation behave more like it did in the stable 7.4 series of Condor, before hierarchical group quotas were added. (Ticket #3040).

Bugs Fixed:

• Fixed a bug that caused events to not be written to the job event log when the log is written in XML and a job policy expression triggering the event contains any double quote marks. (Ticket #3048).
• Fixed a bug in the Condor init script that would cause the init script to hang if Condor was not running. (Ticket #2872).
• Fixed a bug that caused parallel universe jobs using Parallel Scheduling Groups (see section 3.12.9) to occasionally stay idle even when there were available machines to run them. (Ticket #3017).
• Fixed a bug that caused the condor_gridmanager to crash when attempting to submit jobs to a local PBS, LSF, or SGI cluster. (Ticket #3014).
• Fixed a bug in the handling of local universe jobs which caused the condor_schedd to log a spurious ERROR message every time a local universe job exited, and then further caused the statistics for local universe jobs to be incorrectly computed. (Ticket #3008).
• Changed the internally used condor_ckpt_probe executable to link statically, which should make the checkpoint signature more resistant to non-significant changes in the system configuration. (Ticket #2901).
• Restored Globus and VOMS support for the Mac OS X platform. (Ticket #2991).
• Fixed a bug when Condor runs under the PrivSep model, in which if a job created a hard link from one file to another, Condor was unable to transfer the files back to the submit side, and the job was put on hold. (Ticket #2987).
• When configuration variables MaxJobRetirementTime or MachineMaxVacateTime were very large, estimates of machine draining badput and completion time were sometimes nonsensical because of integer overflow. (Ticket #3001).
• Fixed a bug where per-job subdirectories and their contents in $(SPOOL) would not be removed when the associated job left the queue. (Ticket #2942).
• Fixed a bug that could cause the condor_schedd to occasionally crash due to a race condition when running local universe jobs. Associated with the bug would be the error message “No local universe jobs were expected to be running, but one just exited!” (Ticket #3009).

Know Bugs:

• none.

Additions and Changes to the Manual:

• Submit description file commands introduced in Condor version 7.7.1 have now been documented. See the condor_submit manual page at 10 for the newly added definitions of
  ec2_availability_zone
  ec2_ebs_volumes
  ec2_elastic_ip
  ec2_keypair_file
  ec2_vpc_ip
  ec2_vpc_subnet
• There is now a manual page for condor_router_rm, a script that provides additional features convenient for removing jobs managed by the Condor Job Router.
• Documentation not completed for the 7.7.6 release is now available. The use of configuration variable BATCH_GAHP, as well as the use of the new grid_resource of type batch for local submission of PBS, LSF, and SGE jobs is documented. See section 5.3.5 for details. (Ticket #2670).