General :: How To Make A Cluster Desktop
Jun 22, 2011
A Supercomputing cluster running a linux OS would have, say, 100 nodes. The hub (I think that's the term) would be running Gnome, KDE, or some other desktop gui. Any vital programs would also be running from the hub. Any other processes, however, would be delegated to a hub, much like individual cores in a multi-core tower. That way, you could be running 500+ intensive programs, relative to the nodes' power, and they would all run perfectly smoothly.
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Nov 6, 2010
I am trying to build GFS2 cluster with 2 or 3 Fedora 14 nodes, but I've encountered some problems from the start. First luci does not work at all in Fedora 14. There is no luci_admin and even if I manage to start luci service, I get a blank white screen when I try to open it from the browser. I've googled a bit and found that I'd might be able to setup GFS if I manage to build cluster.conf manually and start the cluster suite, but I cannot find documentation on how to create cluster.conf anywhere. If anyone knows how to setup GFS2 without a cluster suite or how to configure cluster.conf.
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Mar 15, 2011
I'm having a very strange problem with red hat cluster. After testing it in the lab, I tried to install a new cluster and received the following error: cman not started: Cannot start, cluster name is too long or other CCS error /usr/sbin/cman_tool: aisexec daemon didn't start I've checked the internet for that error, but nothing. I decided to to take the example from cluster.conf man, which looks like that :
[Code]...
And still I get the same error. I can find my servers both from DNS (FQDN and short name) and they also appear in /etc/hosts.
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Sep 1, 2011
I am working in a project that needs to set up an Apache Web Cluster. The cluster needs to be High-availability (HA) cluster and Load-balancing cluster. Someone mentioned the use of Red Hat Cluster Suite, but, honestly, I can't figure out how it works, I haven't been able to configure it correctly. The project currently have two nodes, but we need to support at least three nodes in the cluster.
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Sep 3, 2010
configure a separate NIC for the heartbeat. what i need to add to cluster.conf to achieve this?
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Jun 19, 2010
I installed opera10 and I can start it from a shell script from the opera folder but when i try to make a desktop shortcut it does not work. Either from xfce or by right clicking and choosing to send it to the desktop as a shortcut.
I did not install opera system wide, only under one user. Do I need to set some kind of path or link or something?
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Jan 11, 2010
How do I set the taskbar to display only the windows from the current desktop? I did it once before, but am on a new installation of my distro.
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Jun 8, 2010
I am trying to do the cluster storage with the Rock Cluster storage operating system . I have install the rock cluster on the main server . and I want to connect the client with the PXE boot . when I starting the client then it boot from the PXE boot into the mode of compute node. but it ask the where is to be stored the I have give the path..then server says that not able to find the directory path.
Steps:-
1) insert-ethers
2) client is started with the PXE boot.
3) it detects the dhcp .
4) At last it demand where is to be started by cd-rom, harddisk ,nfs etc.
then I started with the nfs and I have given the lanIp of server.and server is detecting the client but client is not finding the filesystem directory. into export partition directory but it is not taking path.
PATH:-
/export/rock/install it is not finding this path then it is not able to start the o/s from PXE boot..Is there any solution and manual of rock or anyother solution then u can reply to me...
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May 1, 2010
I want to make a live-USB containing among others both Ubuntu desktop i386 and Ubuntu desktop AMD64. How do I go about this? I tried using unetbootin, first adding i386 and then amd64, but that failed. My computer with an athlon II did manage to boot, and showed it had booted into the 64-bit version (ram shown was 3.9 GB, i386 goes to about 2.7 I think), my wife's computer with a pentium 4 did not manage to boot, got to a black screen. I think this is because casper has issues, being overwritten (I'd seen something to that effect somewhere), and thus only the latest version added being booted (in this case amd 64).
I'm under the impression that the startup disc creator included won't help, nor won't the multicd.sh script, so how do I circumvent the issues?
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Apr 21, 2010
I want to insert a CD-ROM and have it automatically be mounted to someplace like /media/cdrom and create an icon on the Gnome desktop, while logged in as a non-root user under SLED 11.
How can I accomplish this?
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Jan 27, 2010
How to make my GNOME desktop auto recognize the NTFS partition of the USB drive.
On command line I can do the following perfectly:
Code:
which results
Code:
All files permission on the drive is 777. I can read, I can write, do whatever I want.
But in GNOME Desktop environment, when the USB drive is plugged-in, the partition is auto-mounted with other options:
Code:
All files permission on the drive is now 555. I can't write to it anymore. I saw a post earlier having similar mount result, but this one is USB drive though.
So how to configure GDE mount automatically with my intended mount options?
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May 25, 2010
he clicks on everything on his GNOME desktop, and manages to delete everything, including menus, icons, etc. The people he lives with aren't skilled enough to fix it, and I live a good eight hours away. I have remote capabilities with NX, but that requires them to initiate a connection to my workstation here, which is more painful than I thought it would be. I need a way of locking down the desktop, so it's read-only, so he can't make the changes he seems to keep making. I figure I could make the .gnome directory read-only, but I don't know if that would affect the normal operation.
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Jan 26, 2010
How, using the command line can I detect my wireless card and make it work under SUSE Enterprise Desktop? The wireless card works in Win XP.
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Aug 24, 2010
I use Ubuntu 10.04. make my desktop as like as the attached desktop-look? provide me the info about which theme / icon / window border to use to make my desktop exactly as that attached look. I'll be very much delighted if I can make this desktop.
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Oct 3, 2010
I have read several articles online trying to get a grasp and understand on a simple question. What is main difference and functions of cloud server infrastructure and cluster server infrastructure
To my understanding, the the basic setup is sort of identical in a way. They both have a master server (3 GHz, 2GB RAM 50GB HDD), from there it connectes to a switch, then a number of nodes (each 2 GHZ, 4 GB RAM, 100GB HDD) connect to the switch.
The cluster combines node resources so it looks like one computer (5 nodes = 2GHZ x 5, 4GB x 5, 100GB x 5 = 10GHZ, 20GB RAM, 500GB HDD). If this is correct, this sounds good for possibly Database or File server. The resources on cluster would be constant. Example would be Database Server. While running DB server it starts to slow down because of all the data it is trying to store and retreive. If you ned more resources, just add another node.
The cloud uses only resources it needs to run (same numbers as cluster). This is good for Database or Web Server. Example: Web server is hosting 10 domains each with 20 pages. One hour it uses 3 GHZ and 8 GB RAM, next hour it is getting heavy traffic so it uses 9 GHZ, 15GB RAM.
But from what I have gathered and read, this is how I am interpreting the information and understaing it. Plain and simple.
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Jul 9, 2010
I have searched and read lots of document but i couldn't exactly I wonder does anyone made up a beowulf cluster especially on ubuntu 10.04 and how can i do?
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Sep 30, 2010
We have setup a High Available Cluster on two RHEL 5.4 machines with Redhat Cluster Suite (RHCS) having following configuration.
1. Both machines have Mysql server, Apache web server and Zabbix server.
2. Mysql database and web pages reside in SAN.
3. Active machine holds virtual IP and mounted shared disk.
4. We have also included a script in RHCS which takes care of starting Mysql, Apache and zabbix server on the machine which turns active when cluster switches over.
The above configuration holds good if Active machine goes down as a result of hardware failure or Reboot. What if, If any one service say Apache/Mysql/zabbix running on active hangs or become unresponsive.How can we handle this scenario ? Please advice.
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Aug 26, 2010
I need to build a cluster with vmware with 2 linux nodes but I'm a bit of a begginer. I have this questions:
Wich vmware to use (server, workstations)? Do I need a server OS? Wich linux OS to use? how to create the cluster? How do I test it? How do I run a program in paralel?
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Jun 13, 2010
I was following [URL] for the cluster setup. But things dint work out. One Doubt to ask "Do I need the services cman, ccsd and rgmanager one at a time on the both machine. I have been running it through script.
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Dec 2, 2010
Trying to build a RAC server. I have 5 ips that the Network Team has provided with. They are like this:
LAN IP (IP & Cable, which means physical card is present)
TSM IP (Tivoli Storage Manager-Backup) (IP & Cable)
ISO1 (Heartbeat 1) (IP & Cable)
[code]....
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Mar 10, 2010
I have two Web server (RHEL 5.3) as cluster. i want to get a certificate for website. do i need to get two certificates for a website?
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Jul 27, 2011
I tried the openssi for debian. I've tried linux from scratch but flopped trying to get mosix or kerrighed on it. Anyone got a simple way to go to get a hard drive installed single system image cluster with 32 bit machines. I'm not a new linux user but I have seemed to reach the limit of my skills. I don't like the live cds because I plan to add software later. The live cds don't fit my needs.
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Jun 2, 2011
I can create users, but not create the directory of that user... Like /home/user
When I try to start session, I cant because the directory it doesnt exist...
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May 12, 2011
I'm trying to compile cluster glue to build a cluster environment with 2 debian boxes. The problem is compiling cluster glue, I'm following this tutorial: [URL].
First " ./autogen.sh" OK
Then "./configure --localstatedir=/var --disable-fatal-warnings" OK
And then "make" I get the following error:
/usr/bin/xsltproc
--xinclude
[URL]...docbook.xsl:1: parser error : Document is empty
[URL]...docbook.xsl:1: parser error : Start tag expected, '<' not found
cannot parse [URL]
make[2]: *** [hb_report.8] Error 4
make[2]: Leaving directory `/usr/src/ha/Reusable-Cluster-Components-glue--glue-1.0.7/doc'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/src/ha/Reusable-Cluster-Components-glue--glue-1.0.7/doc'
make: *** [all-recursive] Error 1
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Jan 6, 2010
I'm building a 3-node cluster. I have created ocfs filesystems and mounted them on the first two nodes. But while mounting them on the third node , i'm getting this error for 8 of the total luns. all these 8 luns are of 1GB size.
I've unmounted these 8 luns from the other node and tried to mount in the third node ... and then it was working and again the error occurs in the second node. My observation was for some reason these particular luns are not allowing the third node.
mount.ocfs2: Invalid argument while mounting /dev/mapper/voting1 on /voting1. Check 'dmesg' for more information on this error.
dmesg output was :
I'm using RHEL 5.4
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Apr 14, 2010
I am trying to configure redhat cluster first time but no idea how to do it. I am using rhel 5.2. I have copied cluster rpms from redhat media and tried to install them but facing alot of dependencies problem. Can some one please guide how can i do redhat clustering from start. I am doing this for configuring single node clustering for zimbra suite but it is the requirement to configure redhat cluster first. One more thing i am using two virtual machines installed by using virtual box.
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Jun 21, 2011
1)If I installed the Alpha-1 11.10, is it easy to upgrade to newer versions later on until the Final Release?
2) How to make the desktop taskbar appear in ubuntu natty of Unity desktop as previous Gnome? Possible or not?
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Jan 26, 2010
I've tried many, many different ways of setting up the cluster.conf file, but every time I start the cman service I get a message telling me "corosync died: could not read cluster configuration".This means nothing to me, nor can I find logs, or anything on the net about this message. I'm ultimately just trying to run a simple GFS2 config on 2 Ubuntu 9.10 desktop nodes, but I can't even get a basic cluster config going.What am I missing? I've been at this for days.
Code:
<cluster name="example" config_version="1">
<clusternodes>
[code]...
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Nov 20, 2009
I want to configure two node cluster for qmail-toaster?? My idea is.. if one server hardware gets failed it should transfer/migrate service to other qmail-toaster server with all settings like ... domains/users/password etc etc.
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Mar 16, 2010
We were moving our cluter and during this process eth1 cable(external internet cable) was pluged-out. After pulg-in that wire again cluster is not working nicely and some process including mysql is not working.
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