mirror of
https://github.com/xcat2/confluent.git
synced 2024-12-18 01:01:36 +00:00
38 lines
1.0 KiB
Markdown
38 lines
1.0 KiB
Markdown
nodeshell(8) -- Execute command on many nodes in a noderange through ssh
|
|
=========================================================================
|
|
|
|
## SYNOPSIS
|
|
|
|
`nodeshell <noderange> [options] <command to execute on each node>`
|
|
|
|
## DESCRIPTION
|
|
|
|
Allows execution of a command on many nodes in parallel. Like noderun(8), it
|
|
accepts and interpolates confluent attribute expressions as documented in
|
|
nodeattribexpressions(5). `nodeshell` provides stdout as stdout and stderr
|
|
as stderr, unlike psh which combines all stdout and stderr into stdout.
|
|
|
|
## OPTIONS
|
|
|
|
* `-c`:
|
|
Specify the maximum number of instances to run concurrently.
|
|
|
|
## EXAMPLES
|
|
|
|
* Running `echo hi` on for nodes:
|
|
`# nodeshell n1-n4 echo hi`
|
|
`n1: hi`
|
|
`n2: hi`
|
|
`n3: hi`
|
|
`n4: hi`
|
|
|
|
* Setting a new static ip address temporarily on secondary interface of four nodes:
|
|
`# nodeshell n1-n4 ifconfig eth1 172.30.93.{n1}`
|
|
|
|
* If wanting to use literal {} in the command, they must be escaped by doubling:
|
|
`# nodeshell n1-n4 "ps | awk '{{print $1}}'"`
|
|
|
|
## SEE ALSO
|
|
|
|
noderun(8)
|