pegasus-version(1) [debian man page]

PEGASUS-VERSION(1)														PEGASUS-VERSION(1)

NAME

       pegasus-version - print or match the version of the toolkit.

SYNOPSIS

       pegasus-version [-Dproperty=value] [-m [-q]] [-V] [-f] [-l]

DESCRIPTION

       This program prints the version string of the currently active Pegasus toolkit on stdout.

       pegasus-version is a simple command-line tool that reports the version number of the Pegasus distribution being used. In its most basic
       invocation, it will show the current version of the Pegasus software you have installed:

	   $ pegasus-version
	   3.1.0cvs

       If you want to know more details about the installed version, i.e. which system it was compiled for and when, use the long or full mode:

	   $ pegasus-version -f
	   3.1.0cvs-x86_64_cent_5.6-20110706191019Z

OPTIONS

       -Dproperty=value
	   The -D option allows an experienced user to override certain properties which influence the program execution, among them the default
	   location of the user's properties file and the PEGASUS_HOME location. One may set several CLI properties by giving this option multiple
	   times.

	   The -D option(s) must be the first option on the command line. CLI properties take precedence over the file-based properties of the
	   same key.

       -f, --full
	   The --full mode displays internal build metrics, like OS type and libc version, addition to the version number. It appends the build
	   time as time stamp to the version. The time stamp uses ISO 8601 format, and is a UTC stamp.

       -l, --long
	   This option is an alias for --full.

       -V, --version
	   Displays the version of the Pegasus planner you are using.

       --verbose
	   is ignored in this tool. However, to provide a uniform interface for all tools, the option is recognized and will not trigger an error.

RETURN VALUE

       The program will usually return with success (0). In match mode, if the internal version does not match the external installation, an exit
       code of 1 is returned. If run-time errors are detected, an exit code of 2 is returned, 3 for fatal errors.

ENVIRONMENT VARIABLES

       JAVA_HOME
	   should be set and point to a valid location to start the intended Java virtual machine as $JAVA_HOME/bin/java.

EXAMPLE

	   $ pegasus-version
	   3.1.0cvs

	   $ pegasus-version -f
	   3.1.0cvs-x86_64_cent_5.6-20110706191019Z

AUTHORS

       Jens-S. Vockler <voeckler at isi dot edu>

       Pegasus Team http://pegasus.isi.edu

								    05/24/2012							PEGASUS-VERSION(1)

PEGASUS-EXITCODE(1)													       PEGASUS-EXITCODE(1)

NAME

       pegasus-exitcode - Checks the stdout/stderr files of a workflow job for any indication that an error occurred in the job. This script is
       intended to be invoked automatically by DAGMan as the POST script of a job.

SYNOPSIS

       pegasus-exitcode [-h][-t n][-r rv][-n] job.out

DESCRIPTION

       pegasus-exitcode is a utility that examines the STDOUT of a job to determine if the job failed, and renames the STDOUT and STDERR files of
       a job to preserve them in case the job is retried.

       Pegasus uses pegasus-exitcode as the DAGMan postscript for all jobs submitted via Globus GRAM. This tool exists as a workaround to a known
       problem with Globus where the exitcodes of GRAM jobs are not returned. This is a problem because Pegasus uses the exitcode of a job to
       determine if the job failed or not.

       In order to get around the exitcode problem, Pegasus wraps all GRAM jobs with Kickstart, which records the exitcode of the job in an XML
       invocation record, which it writes to the job's STDOUT. The STDOUT is transferred from the execution host back to the submit host when the
       job terminates. After the job terminates, DAGMan runs the job's postscript, which Pegasus sets to be pegasus-exitcode. pegasus-exitcode
       looks at the invocation record generated by kickstart to see if the job succeeded or failed. If the invocation record indicates a failure,
       then pegasus-exitcode returns a non-zero result, which indicates to DAGMan that the job has failed. If the invocation record indicates that
       the job succeeded, then pegasus-exitcode returns 0, which tells DAGMan that the job succeeded.

       pegasus-exitcode performs several checks to determine whether a job failed or not. These checks include:

	1. Is STDOUT empty? If it is empty, then the job failed.

	2. Are there any <status> tags with a non-zero value? If there are, then the job failed. Note that, if this is a clustered job, there
	   could be multiple <status> tags, one for each task. If any of them are non-zero, then the job failed.

	3. Is there at least one <status> tag with a zero value? There must be at least one successful invocation or the job has failed.

       In addition, pegasus-exitcode allows the caller to specify the exitcode returned by Condor using the --return argument. This can be passed
       to pegasus-exitcode in a DAGMan post script by using the $RETURN variable. If this value is non-zero, then pegasus-exitcode returns a
       non-zero result before performing any other checks. For GRAM jobs, the value of $RETURN will always be 0 regardless of whether the job
       failed or not.

       Also, pegasus-exitcode allows the caller to specify the number of successful tasks it should see using the --tasks argument. If
       pegasus-exitcode does not see N successful tasks, where N is set by --tasks, then it will return a non-zero result. The default value is 1.
       This can be used to detect failures in clustered jobs where, for any number of reasons, invocation records do not get generated for all the
       tasks in the clustered job.

       In addition to checking the success/failure of a job, pegasus-exitcode also renames the STDOUT and STDERR files of the job so that if the
       job is retried, the STDOUT and STDERR of the previous run are not lost. It does this by appending a sequence number to the end of the
       files. For example, if the STDOUT file is called "job.out", then the first time the job is run pegasus-exitcode will rename the file
       "job.out.000". If the job is run again, then pegasus-exitcode sees that "job.out.000" already exists and renames the file "job.out.001". It
       will continue to rename the file by incrementing the sequence number every time the job is executed.

OPTIONS

       -h, --help
	   Prints a usage summary with all the available command-line options.

       -t n, --tasks n
	   Number of tasks expected. If less than n tasks succeeded, then pegasus-exitcode will fail with a non-zero return value. This is used in
	   cases where we may not get a Kickstart invocation record for some tasks. Normally Seqexec will detect failed Kickstart invocations and
	   fail accordingly.

       -r rv, --return rv
	   Return value reported by DAGMan. This can be specified in the DAG using the $RETURN variable. If this is non-zero, then
	   pegasus-exitcode immediately fails with a non-zero return value itself.

       -n, --no-rename
	   Don't rename job.out and job.err to .out.XXX and .err.XXX. This option is used primarily for testing.

AUTHORS

       Gideon Juve <juve@usc.edu>

       Pegasus Team http://pegasus.isi.edu

								    05/24/2012						       PEGASUS-EXITCODE(1)