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confluent/confluent_client/doc/man/nodepower.ronn
2018-07-18 11:02:12 -04:00

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nodepower(8) -- Check or change power state of confluent nodes
=========================================================
## SYNOPSIS
`nodepower <noderange>`
`nodepower <noderange> [-p] [on|off|boot|shutdown|reset|status]`
## DESCRIPTION
**nodepower** with only a noderange will retrieve current power state of nodes
through confluent. When given an additional argument, it will request a change
to the power state of the nodes. The following arguments are recognized:
* `on`: Turn on the specified noderange. Nothing will happen to nodes of
the noderange that are already on.
* `off`: Immediately turn off the specified noderange, without waiting for OS
to shutdown. Nothing will happen to nodes of the noderange that are already on.
* `boot`: Immediately boot a system. This will power on nodes of the noderange
that are off, and reset nodes of the noderange that are on. The previous state
will be reflected in the output.
* `shutdown`: Request the OS gracefully shut down. Nothing will happen for
nodes that are off, and nodes will not shutdown if the OS fails to gracefully
respond.
* `reset`: Request immediate reset of nodes of the noderange. Nodes that are
off will not react to this request.
* `status`: Behave identically to having no argument passed at all.
## OPTIONS
* `-p`, '--showprevious':
Show previous power state for all directives that may change power state.
## EXAMPLES
* Get power state of nodes n1 through n4:
`# nodepower n1-n4`
`n1: on`
`n2: on`
`n3: on`
`n4: off`
* Forcing a reboot of nodes n1-n4:
`# nodepower n1-n4 boot`
`n3: on->reset`
`n1: on->reset`
`n2: on->reset`
`n4: off->on`