9 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
I've been a developer for far too many years, but know very little of unix. I have setup a very inexpensive cluster of 6 raspberry pi nodes so I can play around with multi node programming. This is only for fun, but I want to learn properly, else what's the point?!
Setup can be a... (4 Replies)
Discussion started by: MuntyScrunt
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
3. Shell Programming and Scripting
I have a list of node pairs separated with a comma and also, associated with their respective values. For example:
b1224,b0015 1.1... (8 Replies)
Discussion started by: AshwaniSharma09
4. UNIX for Dummies Questions & Answers
Hi all. I have two nodes taken different places. They are connected together on a network. So, i have a service, it works on one of nodes and when the node is unavailable the service should will be launched on other node.
Solution: rhel cluster, keepalive, hearbeat...may be Carp
but what if... (2 Replies)
Discussion started by: Flomaster
5. Emergency UNIX and Linux Support
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
6. UNIX for Advanced & Expert Users
After rcp -rp from remote host, using du -k to verify the file size but total file size have different size. Check on individual file, file size is correct.
How can I confirm on the file size after ftp?
Thank you. (15 Replies)
Discussion started by: KhawHL
7. UNIX for Advanced & Expert Users
Does anyone know something about this? I have no idea what it means and how to do it. but if anyone can give me and explanation and also point me to a website, i'd really appreciate it (5 Replies)
Discussion started by: TRUEST
8. UNIX for Dummies Questions & Answers
how do you list all the nodes in unix
:confused: (3 Replies)
Discussion started by: kamisi
9. UNIX for Dummies Questions & Answers
first off, i am new to unix so please bear with me. i was reading somewhere that if your i-nodes get critical that it can slow your network down. what are i-nodes and when do they become a critical number? this is what mine states:
/ (/dev/root ): 777058 blocks 569290 i-nodes... (4 Replies)
Discussion started by: djatwork
orte-clean(1) Open MPI orte-clean(1)
orte-clean - Cleans up any stale processes and files leftover from Open MPI jobs.
mpirun --pernode [--host | --hostfile file] orte-clean [--verbose]
[-v | --verbose] This argument will run the command in verbose mode and print out the universes that are getting cleaned up as well as pro-
cesses that are being killed.
orte-clean attempts to clean up any processes and files left over from Open MPI jobs that were run in the past as well as any currently
running jobs. This includes OMPI infrastructure and helper commands, any processes that were spawned as part of the job, and any temporary
files. orte-clean will only act upon processes and files that belong to the user running the orte-clean command. If run as root, it will
kill off processes belonging to any users.
When run from the command line, orte-clean will attempt to clean up the local node it is run from. When launched via mpirun, it will clean
up the nodes selected by mpirun.
Example 1: Clean up local node only.
Example 2: To clean up on a specific set of nodes specified on command line, it is recommended to use the pernode option. This will run
one orte-clean for each node.
example% mpirun --pernode --host node1,node2,node3 orte-clean
To clean up on a specific set of nodes from a file.
example% mpirun --pernode --hostfile nodes_file orte-clean
Example 3: Within a resource managed environment like N1GE, SLURM, or Torque. The following example is from N1GE.
First, we see that we have two nodes with two CPUs each.
example% qsh -pe orte 4
example% mpirun -np 4 hostname
Clean up all the nodes in the cluster.
example% mpirun --pernode orte-clean
Clean up a subset of the nodes in the cluster.
example% mpirun --pernode --host node1 orte-clean
1.4.5 Feb 10, 2012 orte-clean(1)