5
votes
3answers
194 views

Multiple tar processes writing to the same archive file at once

I am running many tasks on a Linux cluster. Each task creates many output files. When all tasks are finished, I run something like tar cf foo.tar output_files/to create a tar archive. This is a very ...
2
votes
0answers
22 views

Takeover delay in Heartbeat HA cluster

I have set up a heartbeat HA two node cluster. And both of server have same configuration of ha.cf #cat /etc/ha.cf logfile /var/log/ha-log autojoin none bcast eth1 warntime 20ms deadtime 40ms ...
0
votes
0answers
16 views

Is it possible to install RHEV on el6 clustered computer

Is it possible to use Linux (el6) clustered computer can be used as a hypervisor for RHEV 3.3/Ovirt 3.3? Cause, we can not combine RAM/CPU from two or more hypervisores to be considered as a one ...
1
vote
0answers
27 views

HA Cluster in Linux [closed]

My question is : Is there any other solution for High Availability Clustering in Linux like RedHat Cluster Suite, or not ? Thanks..
0
votes
0answers
87 views

What software should I use to create a HPC (High performance compute) cluster with CentOS 6.5 VMs locally?

I've read about Torque, Slurm resource managers and Maui, Open Grid scheduler, Sonf of Grid Engine but I do not know which is more appropriate to use in a local environment? I've also read that I need ...
1
vote
1answer
44 views

Will having dozens of inactive logins hurt performance

I work on a cluster shared with ~20 users, many of them operating remotely. It's quite common to open the login node, type users and see ~100 users listed, mostly the same user logged in multiple ...
1
vote
1answer
145 views

what is the difference between qsub and ./

Can anyone tell me the difference between the following ways of submitting a script: $ qsub script_name.sh and ./script_name.sh What are the differences between the above two ways of submitting ...
0
votes
0answers
45 views

check/change reserve policy on a virtual disk

I need to check if a Virtual Disk has this policy enable, if so I need to reserve_policy=no_reserve I need to create an DB2 Database Cluster I cannot find a Linux Command for that. I do know if this ...
3
votes
0answers
184 views

Corosync/Pacemaker cluster loss of synchronization

I'm facing a problem with the corosync and pacemaker cluster software. I've two virtual nodes (Scientific Linux 6.4) and corosync/pacemaker installed on them: corosync-1.4.1-17.el6.x86_64 ...
1
vote
1answer
92 views

Strategies for building distributed computing system with hybrid Mac and Linux systems

I want to build a distributed computing system to run Matlab, C and other programming languages for scientific computing. Now I've several old Mac machines with Lion Mac OS installed acted as web ...
4
votes
3answers
2k views

On Ubuntu Linux, is it normal for mandb to run continuously (apparently in the background)?

I have access to a Ubuntu Linux node at my institution. The nodes are shared among the group, but typically I am the only person who uses this particular node. I am running a calculation in parallel ...
9
votes
5answers
492 views

Directory sync with automatic peer discovery

I'm working with a cluster of Linux servers sitting behind the Amazon cloud autoscaling feature (documentation). There are files that accumulate on each server, they are cache files for the ...
7
votes
2answers
2k views

Small Distributed Computing Cluster

I'm a high school student trying to build a linux cluster for a project (I have a bunch of decent computers slated for re-image this summer, so the tech department basically says as long as I don't ...
6
votes
2answers
314 views

Straightforward Linux Clustering

We have many unused PC machines and we would like to use them to set up educational lab for high performance computing applications. Which Linux distribution is the most convenient to set up and easy ...