Erik Soyez E.Soyez at science-computing.de
Tue Dec 2 14:27:29 GMT 2008

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Hi there,

I just noticed that the 6.2 man pages speak of "GE_" environment
variables instead of "SGE_" - which ones should I use?  Are both
names equally valid?  I'm a little bit confused, feels like I
have missed something....

Thanks, Erik Soyez.

GE_SHADOWD(8)     Grid Engine Administrative Commands    GE_SHADOWD(8)

        ge_shadowd - Grid Engine shadow master daemon


        ge_shadowd  is a "light weight" process which can be run on so-
        called shadow master hosts in a Grid Engine cluster  to  detect
        failure  of  the  current  Grid  Engine master daemon, ge_qmasâ
        ter(8), and to start-up a new  ge_qmaster(8)  on  the  host  on
        which  the  ge_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
        $GE_ROOT/$GE_CELL/common  as well as to the master daemon spool
        directory (by  default  $GE_ROOT/$GE_CELL/spool/qmaster).   The
        names  of  the  shadow master hosts need to be contained in the
        file $GE_ROOT/$xQS_NAME_Sxx_CELL/common/shadow_masters.

        ge_shadowd may only be started by root.

        GE_ROOT        Specifies the location of the Grid Engine  stanâ
                       dard configuration files.

        GE_CELL        If  set, specifies the default Grid Engine cell.
                       To address a Grid Engine  cell  ge_shadowd  uses
                       (in the order of precedence):

                              The  name  of  the  cell specified in the
                              environment variable GE_CELL,  if  it  is

                              The   name  of  the  default  cell,  i.e.

        GE_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.

                       If set, specifies the tcp port on which ge_qmasâ
                       ter(8) is expected to listen  for  communication
                       requests.   Most  installations  will use a serâ
                       vices map entry for  the  service  "sge_qmaster"
                       instead to define that port.

        GE_DELAY_TIME  This  variable  controls  the  interval in which
                       ge_shadowd pauses if a takeover bid fails.  This
                       value  is  used  only  when  there  are multiple
                       ge_shadowd instances and they are contending  to
                       be the master.  The default is 600 seconds.

                       This variable controls the interval in which the
                       ge_shadowd checks the heartbeat file (60 seconds
                       by default).

                       This  variable  controls  the  interval  when  a
                       ge_shadowd instance tries to take over when  the
                       heartbeat file has not changed.


Vorstand/Board of Management:
Dr. Bernd Finkbeiner, Dr. Florian Geyer,
Dr. Roland Niemeier, Dr. Arno Steitz, Dr. Ingrid Zech
Vorsitzender des Aufsichtsrats/
Chairman of the Supervisory Board:
Prof. Dr. Hanns Ruder
Sitz/Registered Office: Tuebingen
Registergericht/Registration Court: Stuttgart
Registernummer/Commercial Register No.: HRB 382196


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