Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Echo/kill pgrep
Top Forums UNIX for Beginners Questions & Answers Echo/kill pgrep Post 303024591 by MuntyScrunt on Thursday 11th of October 2018 05:34:09 PM
Old 10-11-2018
Cluster vs Super
Hi there.

I'm currently playing around with a small cluster of mini boards running Debian. Or Raspbian to be precise. Each node is given a datafile and renders animation frames. This is as much a cluster as it c be, I'm using one as a header, I've written some scripts and code to automate certain tasks, but every node is totally isolated save it's wifi connection to the same network.

So I'm wondering what os' there are around that could use all these nodes as one. 12x4 cores could be fun to play around with, and may possibly save time as a lot of duplicated file checking would be avoided.

If I can get this working I'm prepared to sink a bit of cash into the project and add a load more nodes. So, what do you think my options would be?

Many thanks.
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

When kill doesnt work, how to kill a process ?

Hi All, I am unable to kill a process using kill command. I am using HP-UX system. I have tried with kill -9 and i have root privilages. How can i terminate this daemon ? ? ? Regards, Vijay Hegde (3 Replies)
Discussion started by: VijayHegde
3 Replies

2. Programming

kill(0,-9) don't kill the process

Hi all i have simple c program , when i wish to kill the app im using kill(0,-9) , but it seams this command don't do any thing and the program. just ignore it . what im doing wrong here ? im using HP-UX ia64 Thanks (9 Replies)
Discussion started by: umen
9 Replies

3. AIX

pgrep substitute for porting a linux script to AIX 5.x

Hi, I'm trying to get this script to work on an AIX 5.3 box, I couldn't get pgrep for AIX, I also realize that ps works differently on the IBM boxes. Could anybody just give me the specifics of a work around for my problem, I'll adjust the whole script: #!/bin/bash # applabs.com #to do: #... (3 Replies)
Discussion started by: thebytegrill
3 Replies

4. Programming

pgrep returns 256

Hi Everyone, I have a strange behaviour In my c program i use this line: int retval = system("pgrep encoder"); while i expect retval to contain 0,1,2,3 i get 256. did i do something wrong? thanks, Alex (2 Replies)
Discussion started by: alex889
2 Replies

5. UNIX for Dummies Questions & Answers

PGREP Arguments

I'm trying to figure out how to use pgrep to pull the arguments of a process. Given: root 308 1 0 00:00 ? 00:00:00 /bin/sh /some/random/path/somescript.sh -flag /another/path/blahI can get the pid (308) using this command: pgrep shHowever, what if I wanted to pull by "somescript.sh"... (4 Replies)
Discussion started by: mrwatkin
4 Replies

6. HP-UX

pgrep doesn't perform full command line pattern matching

Hi! I need to get PID of some particular process and I wonder if I can use pgrep tool for this purpose. The problem is that pgrep doesn't perform pattern matching on the whole command line, even if I use -f key. Parsing output of ps command is not quite convenient... Also deamon, which PID I need... (2 Replies)
Discussion started by: Sapfeer
2 Replies

7. Shell Programming and Scripting

Kill an specific process ID using the KILL and GREP commands

Good afternoon I need to KILL a process in a single command sentence, for example: kill -9 `ps -aef | grep 'CAL255.4ge' | grep -v grep | awk '{print $2}'` That sentence Kills the process ID corresponding to the program CAL255.4ge. However it is possible that the same program... (6 Replies)
Discussion started by: enriquegm82
6 Replies

8. Shell Programming and Scripting

Ssh and pgrep not working

I have setup SSH keys . Trying to grep to get PID of remote jvm's . this is what am doing ssh -q testuser1@myhost.com 'PID1=pgrep -fl testapp1|awk "{print $1}";PID2=pgrep -fl testapp2|awk "{print $1}" ' echo $PID1, $PID2 it throws error"sh: -fl: command not found" ---------- Post updated... (1 Reply)
Discussion started by: kondagadu
1 Replies

9. Shell Programming and Scripting

Pgrep for processes which are not associated with a terminal in Ubuntu

I would like to find all of the PIDs of processes which are not associated with a terminal and started by CRON. When I do the ps aux | less command, I see in the TTY field a lot of processes with ? character I would like to get those processes ID, is there a way to do that with pgrep? ... (1 Reply)
Discussion started by: ASF Studio
1 Replies

10. Shell Programming and Scripting

Pgrep not showing desired output

I am searching for a process that should be up and running. Im using the following command ps -ef | grep elasticsearch to get elastic+ 1673 1 0 Jan29 ? 05:08:56 /bin/java -Xms4g -Xmx4g -Djava.awt.headless=true -XX:+UseParNewGC -XX:+UseConcMarkSweepGC... (1 Reply)
Discussion started by: Junaid Subhani
1 Replies

LEARN ABOUT HPUX

cmhaltnode

cmhaltnode(1m)															    cmhaltnode(1m)

NAME

       cmhaltnode - halt a node in a high availability cluster

SYNOPSIS

       cmhaltnode [-f] [-v] [-t] [node_name...]

DESCRIPTION

       cmhaltnode causes a node to halt its cluster daemon and remove itself from the existing cluster.

       To halt cluster on the node, a user must either be superuser(UID=0), or have an access policy of FULL_ADMIN allowed in the cluster configu-
       ration file. See access policy in cmquerycl.

       When cmhaltnode is run on a node, the cluster daemon is halted and, optionally, all packages that were running on that node  are  moved	to
       other nodes if possible.

       If node_name is not specified, the cluster daemon running on the local node will be halted and removed from the existing cluster.

       If  you issue this command while a cluster is still in the process of forming, the command will fail with the message "Unable to connect to
       daemon."  If this happens, wait for the cluster to form successfully, then issue the command again.

   Options
       cmhaltnode supports the following options:

	      -f	Force the node to halt even if there are packages or group members running on it.  The group members on the node  will	be
			terminated.   The halt scripts for all packages running on the node will be run; based on priority or dependency relation-
			ships, this may affect packages on other nodes. In other words, packages on other nodes may either start or halt based	on
			this  package halting.	If the package configuration and current cluster membership permit, and if the package halt script
			succeeds, the packages will be started on other nodes.	Without this option, if packages are running on  the  given  node,
			the command will fail.	If a package fails to halt, the node halt will also fail.

	      -v	Verbose output will be displayed.

	      -t	Test  only.  Provide  an assessment of the package placement without affecting the current state of the nodes or packages.
			This option validates the node's eligibility with respect to the package dependencies as well as the external dependencies
			such as EMS resources, package subnets, and storage before predicting any package placement decisions. If there is a pack-
			age in maintenance mode running on the nodes being halted, the package will always be halted and not failover  to  another
			node; the report will not display an assessment for that package.

	      node_name...
			The name of the node(s) to halt.

RETURN VALUE

       cmhaltnode returns the following value:

	       0   Successful completion.
	       1   Command failed.

EXAMPLES

       Halt the cluster daemon on two other nodes:

	      cmhaltnode node2 node3

AUTHOR

       cmhaltnode was developed by HP.

SEE ALSO

       cmquerycl(1m), cmhaltcl(1m), cmruncl(1m), cmrunnode(1m), cmviewcl(1m), cmeval(1m).

						      Requires Optional Serviceguard Software					    cmhaltnode(1m)
All times are GMT -4. The time now is 11:16 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy