NAME
qstat — show
status of batch jobs
SYNOPSIS
DESCRIPTION
The status of a batch job, batch queue, or batch server is
obtained by a request to the server. The qstat
utility is a user-accessible batch client that requests the status of one or
more batch jobs, batch queues, or servers, and writes the status information
to standard output.
For each successfully processed batch
job_identifier, the qstat utility
shall display information about the corresponding batch job.
For each successfully processed destination, the
qstat utility shall display information about the
corresponding batch queue.
For each successfully processed server name, the
qstat utility shall display information about the
corresponding server.
The qstat utility shall acquire
batch job status information by sending a
Job Status Request to
a batch server. The qstat utility shall acquire
batch queue status information by sending a
Queue Status
Request to a batch server. The qstat utility
shall acquire server status information by sending a
Server Status
Request to a batch server.
OPTIONS
The qstat utility shall conform to the
Base Definitions volume of IEEE Std 1003.1-2001
(“POSIX.1”), xbd_chap12(7).
The following options shall be supported by the implementation:
-f- Specify that a full display is produced. The minimum contents of a full
display are specified in the STDOUT section.
Additional contents and format of a full display are implementation-defined.
-Q- Specify that the operand is a destination. The
qstatutility shall display information about each batch queue at each destination identified as an operand. -B- Specify that the operand is a server name. The
qstatutility shall display information about each server identified as an operand.
OPERANDS
If the -Q option is presented to the
qstat utility, the utility shall accept one or more
operands that conform to the syntax for a destination (see
xcu_chap03(1) ).
If the -B option is presented to the
qstat utility, the utility shall accept one or more
server_name operands.
If neither the -B nor the
-Q option is presented to the
qstat utility, the utility shall accept one or more
operands that conform to the syntax for a batch
job_identifier (see xcu_chap03(1)
).
STDIN
Not used.
INPUT FILES
None.
ENVIRONMENT VARIABLES
The following environment variables shall affect the execution of
qstat:
HOME- Determine the pathname of the user's home directory.
LANG- Provide a default value for the internationalization variables that are unset or null. (See the Base Definitions volume of IEEE Std 1003.1-2001 (“POSIX.1”), Section 8.2, Internationalization Variables for the precedence of internationalization variables used to determine the values of locale categories.)
LC_ALL- If set to a non-empty string value, override the values of all the other internationalization variables.
LC_COLLATE- Determine the locale for the behavior of ranges, equivalence classes, and multi-character collating elements within regular expressions.
LC_CTYPE- Determine the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to multi-byte characters in arguments).
LC_MESSAGES- Determine the locale that should be used to affect the format and contents of diagnostic messages written to standard error.
LC_NUMERIC- Determine the locale for selecting the radix character used when writing floating-point formatted output.
ASYNCHRONOUS EVENTS
Default.
STDOUT
If an operand presented to the qstat
utility is a batch job_identifier and the
-f option is not specified, the
qstat utility shall display the following items on a
single line, in the stated order, with white space between each item, for
each successfully processed operand:
- The batch job_identifier
- The batch job name
- The Job_Owner attribute
- The CPU time used by the batch job
- The batch job state
- The batch job location
If an operand presented to the qstat
utility is a batch job_identifier and the
-f option is specified, the
qstat utility shall display the following items for
each success fully processed operand:
- The batch job_identifier
- The batch job name
- The Job_Owner attribute
- The execution user ID
- The CPU time used by the batch job
- The batch job state
- The batch job location
- Additional implementation-defined information, if any, about the batch job or batch queue
If an operand presented to the qstat
utility is a destination, the -Q option is
specified, and the -f option is not specified, the
qstat utility shall display the following items on a
single line, in the stated order, with white space between each item, for
each successfully processed operand:
- The batch queue name
- The maximum number of batch jobs that shall be run in the batch queue concurrently
- The total number of batch jobs in the batch queue
- The status of the batch queue
- For each state, the number of batch jobs in that state in the batch queue and the name of the state
- The type of batch queue (execution or routing)
If the operands presented to the qstat
utility are destinations, the -Q option is
specified, and the -f option is specified, the
qstat utility shall display the following items for
each successfully processed operand:
- The batch queue name
- The maximum number of batch jobs that shall be run in the batch queue concurrently
- The total number of batch jobs in the batch queue
- The status of the batch queue
- For each state, the number of batch jobs in that state in the batch queue and the name of the state
- The type of batch queue (execution or routing)
- Additional implementation-defined information, if any, about the batch queue
If the operands presented to the qstat
utility are batch server names, the -B option is
specified, and the -f option is not specified, the
qstat utility shall display the following items on a
single line, in the stated order, with white space between each item, for
each successfully processed operand:
- The batch server name
- The maximum number of batch jobs that shall be run in the batch queue concurrently
- The total number of batch jobs managed by the batch server
- The status of the batch server
- For each state, the number of batch jobs in that state and the name of the state
If the operands presented to the qstat
utility are server names, the -B option is
specified, and the -f option is specified, the
qstat utility shall display the following items for
each successfully processed operand:
- The server name
- The maximum number of batch jobs that shall be run in the batch queue concurrently
- The total number of batch jobs managed by the server
- The status of the server
- For each state, the number of batch jobs in that state and the name of the state
- Additional implementation-defined information, if any, about the server
STDERR
The standard error shall be used only for diagnostic messages.
OUTPUT FILES
None.
EXTENDED DESCRIPTION
None.
EXIT STATUS
The following exit values shall be returned:
CONSEQUENCES OF ERRORS
In addition to the default behavior, the
qstat utility shall not be required to write a
diagnostic message to standard error when the error reply received from a
batch server indicates that the batch job_identifier does
not exist on the server. Whether or not the qstat
utility waits to output the diagnostic message while attempting to locate
the batch job on other servers is implementation-defined.
APPLICATION USAGE
None.
EXAMPLES
None.
RATIONALE
The qstat utility allows users to display
the status of jobs and list the batch jobs in queues.
The operands of the qstat utility may be
either job identifiers, queues (specified as destination identifiers), or
batch server names. The -Q and
-B options, or absence thereof, indicate the nature
of the operands.
The other options of the qstat utility
allow the user to control the amount of information displayed and the format
in which it is displayed. Should a user wish to display the status of a set
of jobs that match a selection criteria, the qselect(1)
utility may be used to acquire such a list.
The -f option allows users to request a
"full" display in an implementation-defined format.
Historically, the qstat utility has been a
part of the NQS and its derivatives, the existing practice on which it is
based.
FUTURE DIRECTIONS
None.
SEE ALSO
CHANGE HISTORY
Derived from IEEE Std 1003.2d-1994.
Issue 6
IEEE PASC Interpretation 1003.2 #191 is applied, removing the
following ENVIRONMENT VARIABLES listed as affecting
qstat:
COLUMNS
, LINES
,
LOGNAME
, TERM
, and TZ
.
The LC_TIME entry is also removed from the ENVIRONMENT VARIABLES section.
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