8.8 Stable Release Series 6.0

6.0 is the first version of Condor with ClassAds. It contains many other fundamental enhancements over version 5. It is also the first official stable release series, with a development series (6.1) simultaneously available.

8.8.1 Version 6.0.3

• Fixed a bug that was causing the hostname of the submit machine that claimed a given execute machine to be incorrectly reported by the condor_ startd at sites using NIS.

• Fixed a bug in the condor_ startd's benchmarking code that could cause a floating point exception (SIGFPE, signal 8) on very, very fast machines, such as newer Alphas.

• Fixed an obscure bug in condor_ submit that could happen when you set a requirements expression that references the ``Memory'' attribute. The bug only showed up with certain formations of the requirement expression.

8.8.2 Version 6.0.2

• Fixed a bug in the fcntl() call for Solaris 2.6 that was causing problems with file I/O inside Fortran jobs.

• Fixed a bug in the way the DEFAULT_DOMAIN_NAME parameter was handled so that this feature now works properly.

• Fixed a bug in how the SOFT_UID_DOMAIN config file parameter was used in the condor_ starter. This feature is also documented in the manual now (see section 3.3.5 on page ).

• You can now set the RunBenchmarks expression to ``False'' and the condor_ startd will never run benchmarks, not even at startup time.

• Fixed a bug in getwd() and getcwd() for sites that use the NFS automounter. his bug was only present if user programs tried to call chdir() themselves. Now, this is supported.

• Fixed a bug in the way we were computing the available virtual memory on HPUX 10.20 machines.

• Fixed a bug in condor_ q -analyze so it will correctly identify more situations where a job won't run.

• Fixed a bug in condor_ status -format so that if the requested attribute isn't available for a given machine, the format string (including spaces, tabs, newlines, etc) is still printed, just the value for the requested attribute will be an empty string.

• Fixed a bug in the condor_ schedd that was causing condor_ history to not print out the first ClassAd attribute of all jobs that have completed

• Fixed a bug in condor_ q that would cause a segmentation fault if the argument list was too long.

8.8.3 Version 6.0.1

• Fixed bugs in the getuid()), getgid(), geteuid(), and getegid() system calls.

• Multiple config files are now supported as a list specified via the LOCAL_CONFIG_FILE variable.

• ARCH and OPSYS are now automatically determined on all machines (including HPUX 10 and Solaris).

• Machines running IRIX now correctly suspend vanilla jobs.

• condor_ submit doesn't allow root to submit jobs.

• The condor_ startd now notices if you have changed COLLECTOR_HOST on reconfig.

• Physical memory is now correctly reported on Digital Unix when daemons are not running as root.

• New $(SUBSYSTEM) macro in configuration files that changes based on which daemon is reading the file (i.e. STARTD, SCHEDD, etc.) See section 3.3.1, ``Condor Subsystem Names'' on page  for a complete list of the subsystem names used in Condor.

• Port to HP-UX 10.20.

• getrusage() is now a supported system call. This system call will allow you to get resource usage about the entire history of your condor job.

• Condor is now fully supported on Solaris 2.6 machines (both Sparc and Intel).

• Condor now works on Linux machines with the GNU C library. This includes machines running Red Hat 5.x and Debian 2.0. In addition, there seems to be a bug in Red Hat that was causing the output from condor_ config_val to not appear when used in scripts (like condor_ compile). We put in explicit calls to flush the I/O buffers before condor_ config_val exits, which seems to solve the problem.

• Hooks have been added to the checkpointing library to help support the checkpointing of PVM jobs.

• Condor jobs can now send signals to themselves when running in the standard universe. You do this just as you normally would:

          kill( getpid(), signal_number )
  

  Trying to send a signal to any other process will result in kill() returning -1.

• Support for NIS has been improved on Digital Unix and IRIX.

• Fixed a bug that would cause the negotiator on IRIX machines to never match jobs with available machines.

8.8.4 Version 6.0 pl4

NOTE: Back in the bad old days, we used this evil ``patch level'' version number scheme, with versions like ``6.0pl4''. This has all gone away in the current versions of Condor.

• Fixed a bug that could cause a segmentation violation in the condor_ schedd under rare conditions when a condor_ shadow exited.

• Fixed a bug that was preventing any core files that user jobs submitted to Condor might create from being transferred back to the submit machine for inspection by the user who submitted them.

• Fixed a bug that would cause some Condor daemons to go into an infinite loop if the "ps" command output duplicate entries. This only happens on certain platforms, and even then, only under rare conditions. However, the bug has been fixed and Condor now handles this case properly.

• Fixed a bug in the condor_ shadow that would cause a segmentation violation if there was a problem writing to the user log file specified by "log = filename" in the submit file used with condor_ submit.

• Added new command line arguments for the Condor daemons to support saving the PID (process id) of the given daemon to a file, sending a signal to the PID specified in a given file, and overriding what directory is used for logging for a given daemon. These are primarily for use with the condor_ kbdd when it needs to be started by XDM for the user logged onto the console, instead of running as root. See section 3.10.4 on ``Installing the condor_ kbdd'' on page  for details.

• Added support for the CREATE_CORE_FILES config file parameter. If this setting is defined, Condor will override whatever limits you have set and in the case of a fatal error, will either create core files or not depending on the value you specify ("true" or "false").

• Most Condor tools (condor_ on, condor_ off, condor_ master_off, condor_ restart, condor_ vacate, condor_ checkpoint, condor_ reconfig, condor_ reconfig_schedd, condor_ reschedule) can now take the IP address and port you want to send the command to directly on the command line, instead of only accepting hostnames. This IP/port must be passed in a special format used in Condor (which you will see in the daemon's log files, etc). It is of the form: <ip.address:port>. For example: <123.456.789.123:4567>.

8.8.5 Version 6.0 pl3

• Fixed a bug that would cause a segmentation violation if a machine was not configured with a full hostname as either the official hostname or as any of the hostname aliases.

• If your host information does not include a fully qualified hostname anywhere, you can specify a domain in the DEFAULT_DOMAIN_NAME parameter in your global config file which will be appended to your hostname whenever Condor needs to use a fully qualified name.

• All Condor daemons and most tools now support a "-version" option that displays the version information and exits.

• The condor_ install script now prompts for a short description of your pool, which it stores in your central manager's local config file as COLLECTOR_NAME . This description is used to display the name of your pool when sending information to the Condor developers.

• When the condor_ shadow process starts up, if it is configured to use a checkpoint server and it cannot connect to the server, the shadow will check the MAX_DISCARDED_RUN_TIME parameter. If the job in question has accumulated more CPU minutes than this parameter, the condor_ shadow will keep trying to connect to the checkpoint server until it is successful. Otherwise, the condor_ shadow will just start the job over from scratch immediately.

• If Condor is configured to use a checkpoint server, it will only use the checkpoint server. Previously, if there was a problem connecting to the checkpoint server, Condor would fall back to using the submit machine to store checkpoints. However, this caused problems with local disks filling up on machines without much disk space.

• Fixed a rare race condition that could cause a segmentation violation if a Condor daemon or tool opened a socket to a daemon and then closed it right away.

• All TCP sockets in Condor now have the "keep alive" socket option enabled. This allows Condor daemons to notice if their peer goes away in a hard crash.

• Fixed a bug that could cause the condor_ schedd to kill jobs without a checkpoint during its graceful shutdown method under certain conditions.

• The condor_ schedd now supports the MAX_SHADOW_EXCEPTIONS parameter. If the condor_ shadow processes for a given match die due to a fatal error (an exception) more than this number of times, the condor_ schedd will now relinquish that match and stop trying to spawn condor_ shadow processes for it.

• The "-master" option to condor_ status now displays the Name attribute of all condor_ master daemons in your pool, as opposed to the Machine attribute. This helps for pools that have submit-only machines joining them, for example.

8.8.6 Version 6.0 pl2

• In patch level 1, code was added to more accurately find the full hostname of the local machine. Part of this code relied on the resolver, which on many platforms is a dynamic library. On Solaris, this library has needed many security patches and the installation of Solaris on our development machines produced binaries that are incompatible with sites that haven't applied all the security patches. So, the code in Condor that relies on this library was simply removed for Solaris.

• Version information is now built into Condor. You can see the CondorVersion attribute in every daemon's ClassAd. You can also run the UNIX command "ident" on any Condor binary to see the version.

• Fixed a bug in the "remote submit" mode of condor_ submit. The remote submit wasn't connecting to the specified schedd, but was instead trying to connect to the local schedd.

• Fixed a bug in the condor_ schedd that could cause it to exit with an error due to its log file being locked improperly under certain rare circumstances.

8.8.7 Version 6.0 pl1

• condor_ kbdd bug patched: On Silicon Graphics and DEC Alpha ports, if your X11 server is using Xauthority user authentication, and the condor_ kbdd was unable to read the user's .Xauthority file for some reason, the condor_ kbdd would fall into an infinite loop.

• When using a Condor Checkpoint Server, the protocol between the Checkpoint Server and the condor_ schedd has been made more robust for a faulty network connection. Specifically, this improves reliability when submitting jobs across the Internet and using a remote Checkpoint Server.

• Fixed a bug concerning MAX_JOBS_RUNNING : The parameter MAX_JOBS_RUNNING in the config file controls the maximum number of simultaneous condor_ shadow processes allowed on your submission machine. The bug was the number of shadow processes could, under certain conditions, exceed the number specified by MAX_JOBS_RUNNING .

• Added new parameter JOB_RENICE_INCREMENT that can be specified in the config file. This parameter specifies the UNIX nice level that the condor_ starter will start the user job. It works just like the renice(1) command in UNIX. Can be any integer between 1 and 19; a value of 19 is the lowest possible priority.

• Improved response time for condor_ userprio.

• Fixed a bug that caused periodic checkpoints to happen more often than specified.

• Fixed some bugs in the installation procedure for certain environments that weren't handled properly, and made the documentation for the installation procedure more clear.

• Fixed a bug on IRIX that could allow vanilla jobs to be started as root under certain conditions. This was caused by the non-standard uid that user "nobody" has on IRIX. Thanks to Chris Lindsey at NCSA for help discovering this bug.

• On machines where the /etc/hosts file is misconfigured to list just the hostname first, then the full hostname as an alias, Condor now correctly finds the full hostname anyway.

• The local config file and local root config file are now only found by the files listed in the LOCAL_CONFIG_FILE and LOCAL_ROOT_CONFIG_FILE parameters in the global config files. Previously, /etc/condor and user condor's home directory (condor) were searched as well. This could cause problems with submit-only installations of Condor at a site that already had Condor installed.

8.8.8 Version 6.0 pl0

• Initial Version 6.0 release.