10 More Discussions You Might Find Interesting
1. Red Hat
Hi All;
I try to build a Redhat Cluster (CentOS 6) on vmware. But each node sees the other down like:
# clustat
Cluster Status for mycluster @ Wed Apr 8 11:01:38 2015
Member Status: Quorate
Member Name ID Status
------ ---- ... (1 Reply)
Discussion started by: Meacham12
1 Replies
2. UNIX for Advanced & Expert Users
Is there any way to create a arbitrary node for ocfs2 on a virtual machine (others are physical servers) so it won't go panic when one of physical server goes down?
This is for load balanced application servers.
Any setting example or tips?
Thanks. (0 Replies)
Discussion started by: malayo
0 Replies
3. AIX
Hi,
A customer I'm supporting once upon a time broke their 2 cluster node database servers so they could use the 2nd standby node for something else. Now sometime later they want to bring the 2nd node back into the cluster for resilance. Problem is there are now 3 VG's that have been set-up... (1 Reply)
Discussion started by: elcounto
1 Replies
4. Red Hat
Hi all.
May I get some expert advice on troubleshooting performance issues of a 1000 nodes Apache LB cluster. Users report slow loading/response of webpages. Different websites are hosted on this cluster for different clients. But all are reporting the same issue.
Could you please let me know... (1 Reply)
Discussion started by: admin_xor
1 Replies
5. Solaris
Hi
we have 2 solaris 10 servers in veritas cluster.
also we have oracle cluster on the database end.
now we have a requirement to reboot both the servers as it has been running for more than a year.
can any one tell what is the procedure to bring down the cluster services in both the nodes... (7 Replies)
Discussion started by: newtoaixos
7 Replies
6. Solaris
I am new to setting up sun solaris 10 cluster, I have 2 sun sparc t3-1 servers (identical), going to use them as web servers (sun one java web server 7), looking for data replication and real time fail over. My question is do I need external storage to configure the cluster? or I can just use... (3 Replies)
Discussion started by: spitfire2011
3 Replies
7. Red Hat
Hi all, i have 3 nodes cluster (Centos 5 cluster suit) with out quorum disk,
node vote = 1,
the value of a quorum = 2,
when 2 nodes going offline, cluster services are destoys.
How i can save the cluster and all services(move all services to one alive node)
with out quorum disk when other... (3 Replies)
Discussion started by: Flomaster
3 Replies
8. Emergency UNIX and Linux Support
hello Gurus,
My current set up is 3 to 1 Cluster (SUN Cluster 3.2) running oracle database. Task is to reboot the servers. My query is about the procedure to do the same.
My understanding is suspend the databases to avoid switchover. Then execute the command scshutdown to down the cluster... (4 Replies)
Discussion started by: EmbedUX
4 Replies
9. UNIX for Dummies Questions & Answers
Hi ! I have a simple setup of 2 PC (with linux Red-Hat) where the first PC is the primary machine and the second the backup. I use DRBD for data replication and Red-Hat cluster suite for HA (High Availability). I have tested both.
Now I NEED a COMMON IP ADDRESS (or Master/unique IP address) for... (3 Replies)
Discussion started by: Danny Gilbert
3 Replies
10. High Performance Computing
Hi ! I have a simple setup of 2 PC (with linux Red-Hat) where the first PC is the primary machine and the second the backup. I use DRBD for data replication and Red-Hat cluster suite for HA (High Availability). I have tested both.
Now I NEED a COMMON IP ADDRESS (or Master/unique IP address) for... (0 Replies)
Discussion started by: Danny Gilbert
0 Replies
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)