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.
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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
cmdo - Execute process on multiple remote Serviceguard nodes.
cmdo [[-n node_name]...] [-t timeout] command
cmdo will execute a process on a multiple remote Serviceguard nodes and return any output or return value.
cmdo is limited in several ways. cmdo is best suited for situations where other remote execution facilities are not available. For a more
full featured tool for remote execution within a cluster, see cexec(1m) provided by Distributed Systems Administration Utilities.
To use this command, the local user must have the root access role on each of the involved nodes. For more information on Serviceguard
access control policies, see the manual, Managing Serviceguard.
To use the cmdo command without specifying -n options, the local node must be configured into a Serviceguard cluster. If no -n options are
specified, the command will be executed on all available nodes in the cluster.
The command will be executed in an environment which matches the local node. All environment variables defined locally will be available
on the remote node.
Output from stderr and stdout for the remote process will be combined and delivered in one transmission. This command should not be used
for interactive commands or commands which will return large quantities of output. Output from each node will be displayed sequentially as
the operation is executed on each remote node.
Input via stdin is not supported.
Killing the cmdo process does not stop any remote executions of the command. cmdo should not be used on any command which may hang without
specifying a timeout value.
Options And Arguments
Kill the executed command if it does not exit within the specified timeout (in seconds)
Serviceguard node to execute command on. If no -n options are specified, all the nodes configured in the cluster are used.
Command to execute on remote node. May be quoted.
cmdo returns the following values:
0 Successful completed on all nodes.
>0 Command failed on one or more nodes with the specified exit value.
Execute an 'ls' in a remote directory on all nodes within the cluster.
cmdo ls /tmp
Execute an 'ls' in a remote directory on two nodes not configured within a Serviceguard cluster.
cmdo -n node1 -n node2 ls /tmp
cmdo was developed by HP.
cexec(1m), cmcp(1m), cmexec(1m), cmsync(1m), cmquerycl(1m), cmviewcl(1m)
Requires Optional Serviceguard Software cmdo(1m)