NAME

       nova-scheduler - Server for the OpenStack Compute scheduler service.

SYNOPSIS

          nova-scheduler [<options>...]

DESCRIPTION

       nova-scheduler  is  a  server  daemon  that  serves  the Nova Scheduler service, which is responsible for
       picking a compute node to run a given instance on.

OPTIONS

       General options

       --config-dir DIR
              Path to a config directory to pull *.conf files from. This file set is sorted, so as to provide  a
              predictable parse order if individual options are over-ridden. The set is parsed after the file(s)
              specified  via  previous  --config-file, arguments hence over-ridden options in the directory take
              precedence.  This option must be set from the command-line.

       --config-file PATH
              Path to a config file to use. Multiple config files can be specified, with values in  later  files
              taking precedence. Defaults to None. This option must be set from the command-line.

       --debug, -d
              Set the logging level to DEBUG instead of the default INFO level.

       --log-config-append PATH, --log-config PATH, --log_config PATH
              The  name  of  a  logging  configuration  file.  This  file  is  appended  to any existing logging
              configuration files.  For details about logging configuration files, see the Python logging module
              documentation. Note that when logging configuration files are used then all logging  configuration
              is set in the configuration file and other logging configuration options are ignored (for example,
              log-date-format).

       --log-date-format DATE_FORMAT
              Defines  the format string for %(asctime)s in log records. Default: None .  This option is ignored
              if log_config_append is set.

       --log-dir LOG_DIR, --logdir LOG_DIR
              (Optional) The base directory used  for  relative  log_file  paths.  This  option  is  ignored  if
              log_config_append is set.

       --log-file PATH, --logfile PATH
              (Optional)  Name  of log file to send logging output to.  If no default is set, logging will go to
              stderr as defined by use_stderr. This option is ignored if log_config_append is set.

       --nodebug
              The inverse of --debug.

       --nouse-journal
              The inverse of --use-journal.

       --nouse-json
              The inverse of --use-json.

       --nouse-syslog
              The inverse of --use-syslog.

       --nowatch-log-file
              The inverse of --watch-log-file.

       --syslog-log-facility SYSLOG_LOG_FACILITY
              Syslog facility to receive log lines. This option is ignored if log_config_append is set.

       --use-journal
              Enable journald for logging. If running in a systemd environment you may wish  to  enable  journal
              support.   Doing  so  will  use  the journal native protocol which includes structured metadata in
              addition to log messages.This option is ignored if log_config_append is set.

       --use-json
              Use JSON formatting for logging. This option is ignored if log_config_append is set.

       --use-syslog
              Use syslog for logging. Existing syslog format is DEPRECATED and will be changed  later  to  honor
              RFC5424.  This option is ignored if log_config_append is set.

       --version
              Show program's version number and exit

       --watch-log-file
              Uses  logging  handler  designed  to  watch  file  system.  When log file is moved or removed this
              handler will open a new log file with specified path  instantaneously.  It  makes  sense  only  if
              log_file   option   is   specified  and  Linux  platform  is  used.  This  option  is  ignored  if
              log_config_append is set.

       Debugger options

       --remote_debug-host REMOTE_DEBUG_HOST
              Debug host (IP or name) to connect to. This command line  parameter  is  used  when  you  want  to
              connect  to  a nova service via a debugger running on a different host. Note that using the remote
              debug option changes how Nova uses the eventlet library to support async IO. This could result  in
              failures that do not occur under normal operation. Use at your own risk.

       --remote_debug-port REMOTE_DEBUG_PORT
              Debug  port  to connect to. This command line parameter allows you to specify the port you want to
              use to connect to a nova service via a debugger running on different host.  Note  that  using  the
              remote  debug  option  changes  how Nova uses the eventlet library to support async IO. This could
              result in failures that do not occur under normal operation. Use at your own risk.

FILES

       • /etc/nova/nova.conf

       • /etc/nova/rootwrap.conf

       • /etc/nova/rootwrap.d/

SEE ALSO

       nova-compute(1), nova-conductor(1)

BUGS

       • Nova bugs are managed at Launchpad

AUTHOR

       openstack@lists.openstack.org

COPYRIGHT

       2010-present, OpenStack Foundation

31.0.0                                            Apr 03, 2025                                 NOVA-SCHEDULER(1)