similar to: Fault tolerance with webservers

Dear R-help, Has anyone tried running R on a Beowulf-type cluster? I can get R to run in batch (using R CMD BATCH) on a cluster, but am wondering if it is possible to get an interactive R session on a compute node. Right now, if I run: beorun --nolocal R I just get the R start-up message and back to the shell prompt. If I try bpsh 0 R I can get R started (but the R prompt does not

Hi, I am thinking of setting up two servers in load balance mode. I would really appreciate your suggestions and hints... thnx, -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20090627/92f7f56c/attachment.html>

[Sorry for possible duplicated thread.] Hi. I''m new to Xen and I would know if it works well in a cluster environment (Beowulf, OpenMosix, CoLinux etc). I need an HPC running some virtual machines. Is this possible with Xen? Regards. -- Allysson Steve Mota Lacerda Administrador de Redes http://www.stevelacerda.net _______________________________________________ Xen-users mailing

I am trying to configure load balancing for a couple of CentOS4 servers. In order to make it work, I need to add a hidden networking device on each server with the virtual IP. I found the following instructions on linuxvirtualserver.org for doing this, but they don't work. echo 1 > /proc/sys/net/ipv4/ip_forward ifconfig dummy0 0.0.0.0 up echo 1 >

Hello, I'm beginning to give up on making Linux-HA's heartbeat work for my environment (CentOS x86_64) and am wondering what other option have I got to help me: 1. Use IPVS to maintain a cluster of virtual servers, either master/slave or load-balanced. 2. Use DRBD in master/slave fashion to keep a home-grown application highly-available. The first thing I stumbled upon is RedHat Cluster

Hi All, Give Me some good idea, about.. how to manage 3000 Samba Connection. in my network i have 6 Samba File Server.. Volumes Are common in all Samba servers (GPFS Volume + 6 GPFS Nodes) (so 6 Servers are there to share this connection. 500 X 6 ) at a time.. i am getting maximum 3000 samba connection and almost all connection is opening 150MB to 300MB file (3D Animation Files) total opened

Hello all, If I were looking for a load balancer to run on a Linux - specifically, CentOS - machine - what would you recommend? Thanks. Boris.

Hi there, We're attempting to run an LVQ analysis over a cluster of machines via R and openMosix. R spawns several child processes simply by writing commands to several files and using system() to start a slave process. The processes migrate perfectly, and often finish with no reported errors, writing their results into respective files for the parent process to piece together.

Apologies if this is the wrong place to post this question. In that event, please point me in the right direction. My question is whether or not I can use Xen with OpenMosix. The upshot of what I''m attempting to do is this: 1. Build a two to four node cluster using OpenMosix for "raw horsepower" 2. Use Xen on the OpenMosix cluster to divide the "raw horsepower" any

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Hi there, We're currently attempting to explain a slowdown of an LVQ-type parallel analysis we're working on. We are benchmarking our analysis running over openMosix against the same running via SNOW for R. Both perform similarly on small datasets, but on large datasets SNOW drastically outperforms openMosix. However, these results are achieve running SNOW on the default RedHat

Any thoughts on running Xen on OpenSSI? We have an app we''d like to cluster but is expressly and completely incompatible with the OSes that OpenSSI are supported on, but if we can run several Xen domains on a cluster we can run those OSes and, naturally, that app. Thoughts? CD _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com

Hi, Has anyone used a 2.4 series kernel on RHEL4/Centos4? There's a patch (openmosix) which I would really like to make use of [seeing as I just got 10 diskless computers...] which is not ready (yet) for the 2.6 kernel series... Can I just drop in a 2.4.26 series kernel and continue to have a working system? Or is RHEL now totally dependent on 2.6 kernel features? Cheers, MaZe.

Hi, Our environment is: 2.6.9-55.0.9.EL_lustre.1.6.3smp I am getting following errors from two OSS''s ... Nov 7 10:39:51 storage09.beowulf.cluster kernel: LustreError: 23045:0:(client.c:519:ptlrpc_import_delay_req()) @@@ IMP_INVALID req at 00000100b410be00 x4190687/t0 o101->MGS at MGC10.143.245.201@tcp_0:26 lens 232/240 ref 1 fl Rpc:/0/0 rc 0/0 Nov 7 10:39:51

HI all, i am configuring VNC server in CentOS 5.1. i have enables this two lines in /etc/sysconfig/vncserver file VNCSERVERS="2:vnc" VNCSERVERARGS[2]="-geometry 1024x768 -depth 24" here i have created a user vnc and set the password using vncpasswd cmd. then i started the vncserver # vncserver New 'localhost.localdomain:1 (gopinath)' desktop is

How to configure Diskless environment in CentOS 5.1. Please help me out Regards, Gopinath M Signal Networks Pvt. Ltd. Smile... it increases your face value! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20080410/bf9d216c/attachment-0001.html>

I want to set up a cluster that is used for web hosting (RHCS cluster). Recently, I experimented with a 2 node cluster and was able to run it successfully. However, I have started facing some issues with Apache, which I had configured as a service using the Cluster configuration tool. To do this Apache needs a floating IP address. This address is in addition to the network interface IP address.

Hi, I am a beginner to Asterisk. Can anybody clear my following doubts regarding the configuration needed? 1) What is the ideal system configuratin required?(like processer, RAM, h/d space etc) 2) How many connections it can handle at a time? 3) How many Virtual PBXs it can handle? 4) Whether Postgres or Mysql is best suited? 5) How many IVR's it can handle simultaneously? 6) How many

hi, how to write a scripts which launches 10 pings to different destinations at execution of single shell scripts please help me any ideas regards, Gopinath

hi, how to upload and download file from a ftp server using GUI. ftp client. upload and download to and from ftp server works fine when done done from command prompt but not working from GUI ftp client Ex. Gftp. is there any modifications to be done on the server, regards gopinath -------------- next part -------------- An HTML attachment was scrubbed... URL: