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4.0 Scheduler Commands > Commands > checknode

Conventions

checknode

Synopsis

checknode options nodeID
                      ALL

Overview

This command shows detailed state information and statistics for nodes that run jobs.

The following information is returned by this command:

Name Description
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
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)
ActiveTime 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)
EffNodeAccessPolicy Configured effective node access policy

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

Access

By default, this command can be run by any Moab Administrator (see ADMINCFG).

Parameters

Name Description
NODE Node name you want to check. Moab uses regular expressions to return any node that contains the provided argument. For example, if you ran checknode node1, Moab would return information about node1, node10, node100, etc. If you want to limit the results to node1 only, you would run checknode "^node1$".

Flags

Name Description
ALL Returns checknode output on all nodes in the cluster.
-h Help for this command.
-v Returns verbose output.
--xml Output in XML format. Same as mdiag -n --xml.

Example 4-4: checknode

> checknode P690-032
node P690-032
 
State:      Busy  (in current state for 11:31:10)
Configured Resources: PROCS: 1  MEM: 16G  SWAP: 2000M  DISK: 500G
Utilized   Resources: PROCS: 1
Dedicated  Resources: PROCS: 1
Opsys:      AIX       Arch:      P690
Speed:      1.00      CPULoad:   1.000
Network:    InfiniBand,Myrinet
Features:   Myrinet
Attributes: [Batch]
Classes:    [batch]
 
Total Time: 5:23:28:36  Up: 5:23:28:36 (100.00%)  Active: 5:19:44:22 (97.40%)
 
Reservations:
  Job '13678'(x1)  10:16:12:22 -> 12:16:12:22 (2:00:00:00)
  Job '13186'(x1)  -11:31:10 -> 1:12:28:50 (2:00:00:00)
Jobs:  13186

Example 4-5: checknode ALL

> checknode ALL
node ahe

State:      Idle  (in current state for 00:00:30)
Configured Resources: PROCS: 12  MEM: 8004M  SWAP: 26G  DISK: 1M
Utilized   Resources: PROCS: 1  SWAP: 4106M
Dedicated  Resources: ---
  MTBF(longterm):   INFINITY  MTBF(24h):   INFINITY
Opsys:      linux     Arch:      ---   
Speed:      1.00      CPULoad:   1.400
Flags:      rmdetected
Classes:    [batch]
RM[ahe]*:   TYPE=PBS
EffNodeAccessPolicy: SHARED

Total Time: 00:01:44  Up: 00:01:44 (100.00%)  Active: 00:00:00 (0.00%)

Reservations:  ---
node ahe-ubuntu32

State:   Running  (in current state for 00:00:05)
Configured Resources: PROCS: 12  MEM: 2013M  SWAP: 3405M  DISK: 1M
Utilized   Resources: PROCS: 6  SWAP: 55M
Dedicated  Resources: PROCS: 6
  MTBF(longterm):   INFINITY  MTBF(24h):   INFINITY
Opsys:      linux     Arch:      ---   
Speed:      1.00      CPULoad:   2.000
Flags:      rmdetected
Classes:    [batch]
RM[ahe]*:   TYPE=PBS
EffNodeAccessPolicy: SHARED

Total Time: 00:01:44  Up: 00:01:44 (100.00%)  Active: 00:00:02 (1.92%)

Reservations:
  6x2  Job:Running  -00:00:07 -> 00:01:53 (00:02:00)
  7x2  Job:Running  -00:00:06 -> 00:01:54 (00:02:00)
  8x2  Job:Running  -00:00:05 -> 00:01:55 (00:02:00)
Jobs:        6,7,8
node ahe-ubuntu64

State:      Busy  (in current state for 00:00:06)
Configured Resources: PROCS: 12  MEM: 2008M  SWAP: 3317M  DISK: 1M
Utilized   Resources: PROCS: 12  SWAP: 359M
Dedicated  Resources: PROCS: 12
  MTBF(longterm):   INFINITY  MTBF(24h):   INFINITY
Opsys:      linux     Arch:      ---   
Speed:      1.00      CPULoad:   0.000
Flags:      rmdetected
Classes:    [batch]
RM[ahe]*:   TYPE=PBS
EffNodeAccessPolicy: SHARED

Total Time: 00:01:44  Up: 00:01:44 (100.00%)  Active: 00:00:55 (52.88%)

Reservations:
  0x2  Job:Running  -00:01:10 -> 00:00:50 (00:02:00)
  1x2  Job:Running  -00:00:20 -> 00:01:40 (00:02:00)
  2x2  Job:Running  -00:00:20 -> 00:01:40 (00:02:00)
  3x2  Job:Running  -00:00:17 -> 00:01:43 (00:02:00)
  4x2  Job:Running  -00:00:13 -> 00:01:47 (00:02:00)
  5x2  Job:Running  -00:00:07 -> 00:01:53 (00:02:00)
Jobs:        0,1,2,3,4,5
ALERT:  node is in state Busy but load is low (0.000)

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