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checknode


checknode NODE [-h]

Purpose

Displays state information and statistics for the specified node.

Permissions

This command can be run by any Scheduler Administrator.

Parameters

NODE Node name you want to check.

Flags

-h Help for this command.

Description

This command shows detailed state information and statistics for nodes that run jobs (those running LoadL_startd).

NOTE
This command returns an error message if it is run against a scheduling node (one running schedd).

The following information is returned by this command:

Disk Disk space available
Memory Memory available
Swap Swap space available
State Node state
Opsys Operating system
Arch Architecture
Adapters Network adapters available
Features Features available
Classes Classes available
Frame IBM SP frame number associated with node
Node IBM SP node number associated with node
StateTime Time node has been in current state in HH:MM:SS notation
Downtime Displayed only if downtime is scheduled
Load CPU Load (Berkley one-minute load average)
TotalTime Total time node has been detected since statistics initialization expressed in HH:MM:SS notation
UpTime Total time node has been in an available (Non-Down) state since statistics initialization expressed in HH:MM:SS notation (percent of time up: UpTime/TotalTime)
BusyTime Total time node has been busy (allocated to active jobs) since statistics initialization expressed in HH:MM:SS notation (percent of time busy: BusyTime/TotalTime)

After displaying this information, some analysis is performed and any unusual conditions are reported.

Example

% checknode fr26n10

Checking Node fr26n10.usc.edu

Disk (KB):     2076  Memory (MB):      512  Swap (KB): 470772
State:         Down  Opsys:          AIX41  Arch:       R6000 
Adapters: [ethernet]
Features: [Thin][Dedicated]
Classes:  [batch][medium]
Frame:    26  Node: 10

StateTime:  Node has been in current state for  5:02:23
DownTime:  (-26844 Seconds/-7.46 Hours) Thu Sep  4 09:00:00
Load:     0.009  
TotalTime:   30:18:29  UpTime:   23:28:51 (77.47%) BusyTime:   19:21:46 (63.89%)

Related Commands

Further information about node status can be found using the showstate command.

You can determine scheduling nodes with the LoadLeveler llstatus command (nodes that have Avail in the Schedd column).

Default File Location

/u/loadl/maui/bin/checknode

Notes

None.


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