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<!-- Manpage converted by man2html 3.0.1 -->
NAME
sge_shadowd - Grid Engine shadow master daemon
SYNOPSIS
sge_shadowd
DESCRIPTION
<I>sge</I>_<I>shadowd</I> 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,
<B><A HREF="../htmlman8/sge_qmaster.html">sge_qmaster(8)</A></B>, and to start-up a new <B><A HREF="../htmlman8/sge_qmaster.html">sge_qmaster(8)</A></B> on the
host on which the <I>sge</I>_<I>shadowd</I> runs. If multiple shadow dae-
mons 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 (by default
<sge_root>/<cell>/spool/qmaster). The names of the shadow
master hosts need to be contained in the file
<sge_root>/<cell>/common/shadow_masters.
RESTRICTIONS
<I>sge</I>_<I>shadowd</I> may only be started by root.
ENVIRONMENT VARIABLES
SGE_ROOT Specifies the location of the Grid Engine
standard configuration files.
SGE_CELL If set, specifies the default Grid Engine
cell. To address a Grid Engine cell
<I>sge</I>_<I>shadowd</I> uses (in the order of pre-
cedence):
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.
SGE_QMASTER_PORT
If set, specifies the tcp port on which
<B><A HREF="../htmlman8/sge_qmaster.html">sge_qmaster(8)</A></B> is expected to listen for com-
munication requests. Most installations will
use a services map entry for the service
"sge_qmaster" instead to define that port.
SGE_DELAY_TIME If set, overrides the 600 seconds default
minimum delay before before a new
<B><A HREF="../htmlman8/sge_qmaster.html">sge_qmaster(8)</A></B> is started by <I>sge</I>_<I>shadowd</I> .
FILES
<<I>sge</I>_<I>root</I>>/<<I>cell</I>>/<I>common</I>
Default configuration directory
<<I>sge</I>_<I>root</I>>/<<I>cell</I>>/<I>common</I>/<I>shadow</I>_<I>masters</I>
Shadow master hostname file.
<<I>sge</I>_<I>root</I>>/<<I>cell</I>>/<I>spool</I>/<I>qmaster</I>
Default master daemon spool directory
<<I>sge</I>_<I>root</I>>/<<I>cell</I>>/<I>spool</I>/<I>qmaster</I>/<I>heartbeat</I>
The heartbeat file.
SEE ALSO
<B><A HREF="../htmlman1/sge_intro.html">sge_intro(1)</A></B>, <B><A HREF="../htmlman5/sge_conf.html">sge_conf(5)</A></B>, <B><A HREF="../htmlman8/sge_qmaster.html">sge_qmaster(8)</A></B>, <I>Grid</I> <I>Engine</I> <I>Ins-</I>
<I>tallation</I> <I>and</I> <I>Administration</I> <I>Guide</I>.
COPYRIGHT
See <B><A HREF="../htmlman1/sge_intro.html">sge_intro(1)</A></B> for a full statement of rights and permis-
sions.
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