sge_shadowd

SGE_SHADOWD(8Grid Engine Enterprise Edition Administrative CommandSGE_SHADOWD(8)



NAME
       sge_shadowd - Grid Engine Enterprise Edition shadow master daemon

SYNOPSIS
       sge_shadowd

DESCRIPTION
       sge_shadowd is a "light weight" process which can be run on the so called
       shadow master hosts in a Grid Engine Enterprise Edition cluster to detect
       failure of the current Grid Engine Enterprise Edition master daemon
       sge_qmaster(8) and to start-up a new sge_qmaster(8) on the host on which
       the sge_shadowd runs. If multiple shadow daemons are active in a cluster,
       they run a protocol which ensures that only one of them will start-up a
       new master daemon.

       The  hosts suitable for being used as shadow master hosts must have
       shared root read write access to the directory <sge_root>/<cell>/common
       as well as to the master daemon spool directory (Default
       <sge_root>/<cell>/spool/qmaster).  The shadow master hosts need to be
       contained in the file <sge_root>/<cell>/common/shadow_masters.

RESTRICTIONS
       sge_shadowd may only be started from root.

ENVIRONMENT VARIABLES
       SGE_ROOT       Specifies the location of the Grid Engine Enterprise
                      Edition standard configuration files.

       SGE_CELL       If set, specifies the default Grid Engine Enterprise
                      Edition cell. To address a Grid Engine Enterprise Edition
                      cell sge_shadowd uses (in the order of precedence):

                             The name of the cell specified in the environment
                             variable SGE_CELL, if it is set.

                             The name of the default cell, i.e. default.


       SGE_DEBUG_LEVEL
                      If set, specifies that debug information should be written
                      to stderr. In addition the level of detail in which debug
                      information is generated is defined.

       COMMD_PORT     If set, specifies the tcp port on which sge_commd(8) is
                      expected to listen for communication requests.  Most
                      installations will use a services map entry instead to
                      define that port.

       COMMD_HOST     If set, specifies the host on which the particular
                      sge_commd(8) to be used for Grid Engine Enterprise Edition
                      communication of the sge_shadowd client resides.  Per
                      default the local host is used.

FILES
       <sge_root>/<cell>/common
                       Default configuration directory
       <sge_root>/<cell>/common/shadow_masters
                       Shadow master hostname file.
       <sge_root>/<cell>/spool/qmaster
                       Default master daemon spool directory

SEE ALSO
       sge_intro(1), sge_conf(5), sge_commd(8), sge_qmaster(8), Grid Engine
       Enterprise Edition Installation and Administration Guide.

COPYRIGHT
       See sge_intro(1) for a full statement of rights and permissions.



GEEE 5.3                  $Date: 2001/07/20 08:19:17 $            SGE_SHADOWD(8)