Sponsored Content
Top Forums UNIX for Beginners Questions & Answers Proliferate commands across nodes? Post 303022632 by MuntyScrunt on Tuesday 4th of September 2018 03:41:42 PM
Old 09-04-2018
Proliferate commands across nodes?

Hi folks.

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 bit of a ball ache with proliferating code and commands.

Could you please suggest software that will allow me to send commands to node 1 and have that proliferated to the other 5? I have searched for this and found a few possibilities, most do a lot more than I need and the one that looks perfect (fabric) doesn't install in Raspbian, no idea why.

I'm sure I could write a bash with ssh and accomplish the basics, but I like the idea of asynchronous replies which I think is going to be a depth to far.

Any suggestions welcome, and if you have an opinion of one thing over another please let me know why.

Many thanks.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

i-nodes

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
4 Replies

2. UNIX for Dummies Questions & Answers

nodes

how do you list all the nodes in unix :confused: (3 Replies)
Discussion started by: kamisi
3 Replies

3. UNIX for Advanced & Expert Users

Managing nodes???

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
5 Replies

4. UNIX for Advanced & Expert Users

du -k shows different size in two nodes

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? Pls advise. Thank you. (15 Replies)
Discussion started by: KhawHL
15 Replies

5. AIX

i-nodes - out of disk space on /tmp

Usage: We run test build jobs that login to our AIX machines and create many small files in /tmp. After these jobs complete, they delete their temporary files that they have created. Issue: After approximately a week /tmp appears to become full. Issuing the command “df –g... (4 Replies)
Discussion started by: bblondin
4 Replies

6. Emergency UNIX and Linux Support

Rebooting 3 to 1 Cluster nodes.

hello Gurus, 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
4 Replies

7. High Performance Computing

request more nodes

I am new to cluster commands. But I have tried utilizing: -pe, but I do not know my parallel computing environment. We are running SGE, is there a simpler command to request more nodes? also: qsub -N auto -M name@email.com -m abe auto.sh does not email me at all. Help would be appreciated (0 Replies)
Discussion started by: theawknewbie
0 Replies

8. UNIX for Dummies Questions & Answers

One service, two nodes, HA

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
2 Replies

9. Shell Programming and Scripting

Remove duplicate nodes

Hi all, I have a list of node pairs separated with a comma and also, associated with their respective values. For example: b0015,b1224 1.1 b0015,b2576 1.4 b0015,b3162 2.5 b0528,b1086 1.7 b0528,b1269 5.4 b0528,b3602 2.1 b0948,b2581 3.2 b1224,b0015 1.1... (8 Replies)
Discussion started by: AshwaniSharma09
8 Replies

10. AIX

Re-cluster 2 HACMP 5.2 nodes

Hi, 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
1 Replies
PACEMAKER(8)						  System Administration Utilities					      PACEMAKER(8)

NAME
Pacemaker - Part of the Pacemaker cluster resource manager SYNOPSIS
crmadmin command [options] DESCRIPTION
crmadmin - Development tool for performing some crmd-specific commands. Likely to be replaced by crm_node in the future OPTIONS
-?, --help This text -$, --version Version information -q, --quiet Display only the essential query information -V, --verbose Increase debug output Commands: -i, --debug_inc=value Increase the crmd's debug level on the specified host -d, --debug_dec=value Decrease the crmd's debug level on the specified host -S, --status=value Display the status of the specified node. Result is the node's internal FSM state which can be useful for debugging -D, --dc_lookup Display the uname of the node co-ordinating the cluster. This is an internal detail and is rarely useful to administrators except when deciding on which node to examine the logs. -N, --nodes Display the uname of all member nodes -E, --election (Advanced) Start an election for the cluster co-ordinator -K, --kill=value (Advanced) Shut down the crmd (not the rest of the clusterstack ) on the specified node Additional Options: -t, --timeout=value Time (in milliseconds) to wait before declaring the operation failed -B, --bash-export Create Bash export entries of the form 'export uname=uuid' Notes: The -i,-d,-K and -E commands are rarely used and may be removed in future versions. AUTHOR
Written by Andrew Beekhof REPORTING BUGS
Report bugs to pacemaker@oss.clusterlabs.org Pacemaker 1.1.10-29.el7 June 2014 PACEMAKER(8)
All times are GMT -4. The time now is 02:30 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy