CentOS 5 :: Cluster Setup - Used NFS - RSH - File Sharing - Communication
Dec 18, 2009
I put together a 3 PC cluster approx. 6 years ago with Redhat, at that time I was in Grad. School. Now I am in a small company and we are planning to go for a cluster setup. I have chosen to go with Centos5.
The last time around I used NFS, RSH etc. for file sharing, communication etc. Would it be OK for me to go with the same stuff or some new software/technology has come in.
The Centos cluster setup is for high-performance computing.
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.
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.
I am researching the CentOS Cluster Setup. Does anyone know of a guide on this or have a thread linked that I can look at? I want to build a small cluster and then be able to add to it as it grows. Mainly I want to have web hosts, data, and mail behind it. The DNS will probably be on there own.
I have tried to set up file sharing using ssh, samba with no luck. I now have it set up using NFS the only thing is it is just one way and I need it both ways. I was wondering if I installed the same packages on the other pc if I could make this work both ways.
The command I used on the first pc was: sudo apt-get install nfs-kernel-server nfs-common portmap And on the other pc the command was: sudo apt-get install nfs-common portmap Or is there a better way?
So far, I can ping a virtual ip, and manually relocate it between the nodes, but I didn't figure out, how to do this automatically. So this is my question: How can I setup the cluster, to it automatically failover the a service to another node case one node fails?
I am trying to set up a LAN with some basic file and printer sharing, as well as either a VPN or FTP server. I am setting up a server for an office with about 4 computers and one remote computer at a home office. I would like the server to back up a selected group of folders on all of the computers as well as share some printers between them all as well. If all of the other computers are windows computers will Ubuntu work for something like this? I would also like to host a website and e-mail server as well if the server is not loaded down too much. I know I can get windows server to work, but I would like to use something else if possible.
I'm going to be setting up our company with a in office server in the next few days. I wanted to use ubuntu as my servers OS but after reading some of the documentations I come to realize there is no X server in the server OS. I am OK with doing everything in terminal but would prefer to do some things in a graphic interface. Am I able to install the Xfree86 and be able to configure some stuff through that? Also the machine I am building for the server is not a true server machine just a really fast computer with lots of memory and space. The specs are a 3.1 AMD 64bit processor, 16gig ram, 2x 1TB hdd 7200rpm sata.
If the X server isn't a possibility on the server OS, I have read you can install all the server repositories on the Desktop Editions. Would that be a better option for me? Here is what I would like the server to do. I am going to be running quick books on the server with 1 workstation that is dedicated to it. We have 3 workstations and 3 users. We also would like to implement a Shared filing system and print server. Eventually when our current contract with our web host expires we would like to migrate the base website (not the ecom side) to this server.
I have a Netopia 3000 Series Internet Gateway [URL] & windows 7(laptop) & ubuntu 9.10. - My laptop connects to it wireless and my ubuntu via ethernet cable. - I am trying to setup file sharing and printing. How do I go about in making them ping each other? the networking side. I logged in the router & check and windows has ip 192.168.100 & ubuntu has 192168.1.2
**Edit: path for mount was incorrect Distro Server: CentOS 5.5
Clients: Fedora(latest) OSX(latest)
Backround I am attempting to setup a server in my house mostly(for the first time) for backups and file sharing. It is important to me that file permissions are preserved. So its my understanding that I must use idmapd in order for this to work. As of now I'm only working with the linux distros while osx will be dealt with once these two work together. portmapper is up and running, along with lockd on both machines. Firewalls are also down on both machines for now. The server side was all setup using the GUI interface with no extra options selected. Problem When attempting to "mount -t nfs4 10.0.0.2/$sharedfolder /mnt" I get an error operation not permitted with no error printing in /var/log/message. If I use "mount -t -o nolock nfs4 10.0.0.2/$sharedfolder /mnt" it mounts just fine. Ive checked both machines multiple times to make sure that lockd is up and running. In the idmapd.conf file I the domain as "localdomain" for both machines but I doubt that is right; like I stated above this is my first attempt at a server. I'm assuming the problem is a whole missing step that involves some kind of id mapping server I need to setup.
I'm going to setup a File and Printer Sharing in my little home network... 3 Computers actively connected to the Web through a single ADSL2+ Wireless Router (number of Computers will increase later) At the moment 2 of the computers are running Fedora 10 and 1 running Windows XP...
Now i want to setup the 3 machines to use 1 printer which is connected to one of the Fedora 10 machines, and i want File Sharing to be enabled so each machine can easily view each others shared files and also be able to print when ever needed (ofcourse the machine with the printer will have to be on for the printing process to happen) I've installed Samaba on each Fedora Machine, enabled sharing but i dont seem to be able to view the Windows machine or each other....
I am very new to linux and I have been given a school project that involves getting my windows pc talking to a linux single board computer that I have. It can be found here. [URL]. I have two bluetooth usb dongles, one to plug into my pc and one to plug into my linux board, I know that both work as I have tried talking to them both using my mobile/cell phone. Also when I plug the dongle into my linux board it recognizes something has been plugged in. However I am unsure where to go from here. I have tried "searching" for the device using my windows pc, but it will only find my cell phone and not my linux board. I also tried mounting it similar to how i would mount a usb drive e.g. mount dev/sda etc. How to setup the linux board for bluetooth communications?
I just installed a CentOs 5.2 Linux server and I'm trying to configure Samba. The file names of files created from the windows workstation are ok, but the file names of files created from the Linux server appear with different names than them are supposed to have. I've checked the Samba configuration file but I can't find options for fixing this trouble. Samba version 3.033375
I have a HA cluster, all nodes have same network supplied by one ISP. And if the error occur with ISP the system will fail. So I want to set up HA cluster with different network (supplied by different ISP) between nodes. How can I do this?
I am currently trying to setup a cluster using heartbeat. Unfortunatly it does not do what I want to do. I am using heartbeat 2.1.4-11 on a readhat system. I am using the the cib for configuration. What I want to do is the following: I have two Nodes. I want to run a clone resource on both nodes. It's named I want to run as a clone. This works fine.Additionally I want to have two virtual IP adresses. One should be set on Node 1 the other on Node 2. This works fine as well. I want to set dependencies between the resources. And this is where I have problems. What I want to achive: In case named is not able to run on a node, the vIP should switch to the other node (which then will have both vIPs). In case both nodes are able to run named, there should be one vIP on each node. Sounds simple, but does not work.Accourding to the heartbeat docu this an be achieved by using
I need to setup an linux cluster ..so i prefer ubuntu because of support and i personally i use ubuntu.. and can any one explain in breif ..what all the things needed to setup an ubuntu based cluster my configuration for each node will be (totally 6 nodes) core2 duo with 4 gb ram i need 4 nodes and 2 for load balancing..
well sorry I'm new in this but I just made my cluster with about 4 good machines each with 2 or more gbs of memory and dual-core processor but the question is i can install an operating system in nodes as having the frontend or not different if possible, and how i can do it because i don't now how and i don't find material and tutorials that can help me..
I have a CentOS + Samba server and Windows XP client machines. Users, passwords and permissions are entered on the server machine.users and passwords ( same as on the server ) are entered in the XP client machine.When attempting to access a public file on the server using a XP client machine and the IP address of my server, I am asked a user name and password and none of the already entered seem to work. I cannot access the server file (prompted again and again to enter user name and password). What did i miss
which file can setup up my network interfaces? i was able to setup the nameserver using /etc/resolv.conf but I cannot find anywhere to configure the ip and and gateway. I could't find /etc/network/interfaces as you do on Debian
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 :
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.
i'm a familiar with Linux environement ( fedora 10 user ) and i got a project in a training where i have to create a cluster with two nodes where i have to set up a number of VMs that will run applications such as ( Samba, Ldap, Zimbra, ...) but i don't know how to virtualize on top of a cluster ! i would like to know how that can be done, and how is it possible to let the VMs get ressources ( RAM & CPU ) from the two nodes ??
What I did not realize was, that DLM uses the external Ethernet Interface even when talking to the local machine/node. So iptables was blocking my DLM daemon. With iptables down or the TCP port for DLM opened, cman starts, mount works.What I have here is a fibrechannel SAN which will be directly attached to several servers in the near future. Thise servers should be enabled access to a single filesystem on the SAN (shared).I heard that the right filesystem choice for this kind of setup would be GFS, because it has a Distributed Lock Manager and one FS journal for each node.
But I am having trouble setting up GFS. I have managed to create a GFS on a small testvolume (local HDD so far), but am unable to mount it. It seems that GFS/DLM needs a lot of cluster services to run, which I do not all understand / know how to correctly setup. Also: Will the lock_dlm stuff need Ethernet communications to handle file locks? And if so, will it fetch the node list from /etc/cluster/cluster.conf to determine who to talk to?
I created a cluster with two nodes and a machine for managers with luci, if a machine reboot the cluster function by transferring the resource (IP address), if forced to stop the machine (pull the plug) the cluster does not work.
I have lack of understanding of CentOS in general. I have looked for a remedy on other forums and google, but haven't been able to find the answer. I have a 3 node cluster that was functioning great until I decided to go offline for awhile. My config is as follows: node 2: vh1 node 3: vh2 node 4: vh6 All nodes connect to a common shared area on an iscsi device (vguests_root)
Currently vh2 and vh6 connect great, however since putting the machines back online I can no longer connect with vh1. A dmesg command on vh1 reveals the following: GFS2: fsid=: Trying to join cluster "lock_dlm", "Cluster1:vguest_roots" GFS2: fsid=Cluster1:vguest_roots.2: Joined cluster. Now mounting FS... GFS2: fsid=Cluster1:vguest_roots.2: can't mount journal #2 GFS2: fsid=Cluster1:vguest_roots.2: there are only 2 journals (0 - 1) .....