05-21-2010
"scshutdown" will shutdown all nodes in the cluster at once. Is that what you want?
When all nodes are down you can restart them by typing "boot" at the OK prompt. After a "schutdown" there is no specific order to reboot the nodes. The first node up and running will start all resourcegroups, as long as they are allowed to run on it.
What do you mean with "3 to 1 cluster", a 3 node cluster?
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LEARN ABOUT DEBIAN
cluster::ccs
CCS(3pm) User Contributed Perl Documentation CCS(3pm)
NAME
Cluster::CCS - Perl wrapper for the Cluster Configuration Service library
SYNOPSIS
use Cluster::CCS;
my $ccs = new Cluster::CCS();
$ccs->fullxpath(1);
my $ccshandle = $ccs->connect();
if ($ccshandle < 1) {
print "Cannot comunicate with libccs
";
exit $ccshandle;
}
my $rtn;
my $err;
$err = $ccs->get($ccshandle, '/cluster/@name', $rtn);
if ($err != 0) {
print "Query is not valid
";
}
print "My Cluster name is $rtn
";
$err = $ccs->disconnect($ccshandle);
if ($err != 0) {
print "Problems disconnecting from libccs
";
}
exit $err;
DESCRIPTION
Cluster::CCS provides a perl XS wrapper for libccs.
METHODS
new
Creates a new Cluster::CCS object.
fullxpath(value)
Enable or disable full xpath queries. Set 1 to enable, 0 to disable.
This has to be set before connect() or force_connect.
In order to change this value, a disconnect operation is required.
connect(void)
Initialize the connection to libccs/libconfdb/corosync objdb.
Returns 1 on success or negative on failure.
force_connect(cluster_name, blocking)
Initialize the connection to libccs/libconfdb/corosync objdb.
If blocking is set, it will retry the operation until it succeed.
Returns 1 on success or negative on failure.
disconnect(desc)
Disconnect and free resources allocated during opertaion.
Returns 0 on success.
get(desc, query, rtn)
Perform a simple xpath query.
Returns 0 on success, negative otherwise. On success rtn will contain the
requested data.
get_list(desc, query, rtn)
Perform a simple xpath query and retain some data to iterate over a list of
results.
Returns 0 on success, negative otherwise. On success rtn will contain the
requested data.
set(desc, path, val)
This operation is not yet implemented in libccs.
lookup_nodename(desc, nodename, rtn)
Perform a nodename lookup using several methods.
Return 0 on success and rtn will contain the requested data.
EXPORTS
Nothing is exported by default.
BUGS
https://bugzilla.redhat.com/
SEE ALSO
cluster.conf(5), ccs(7), ccs_tool(8)
AUTHOR
Fabio M. Di Nitto <fdinitto@redhat.com>
perl v5.14.2 2013-01-12 CCS(3pm)