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Beginner

High CPU

Hi Guys,

 

I am observing High cpu on my N7k M1 ( N7K-M132XP-12L) line card due to "aclqos" process which is consuming 78% of cpu.

 

CPU utilization for five seconds: 100%/2%; one minute: 99%; five minutes: 99%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
----- ----------- -------- ----- ------ ------ ------ --- -----------
2241 170313450 45702780 3 86.39% 81.75% 80.16% - aclqos

 

Can any one help to know what is this process indicates and how to troubleshoot the same.

9 REPLIES 9
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VIP Mentor

what is the version of nexus code running, look some bug reported  here :

 

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvg37701/?rfs=iqvred

 

here are the steps for troubleshooting high CPU

 

https://www.cisco.com/c/en/us/support/docs/interfaces-modules/nexus-7000-series-supervisor-1-module/116137-trouble-nexus7000-highcpu-00.html

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Hi Balaji ,

 

Thanks for sharing the document.

As i have already gone through this.

 

With respect to the bug the CPU utilization of line card almost 100%  ,the  cpu is taking around 1 hour recovered are matching with the scenario but the Symptom 1 is not matching  (Console get stuck after performed default interface command.).I didn't performed any default int config ,also verified "show system internal ethpm errors" , "show interface status error policy detail" but nothing able to find for interface related issue.

 

Run ver:-6.2(22).

 

Reg document i tried to dig deep the process id which was causing the issue but can see "aclqos service never crashed since the last reboot."

 

Could you please suggest here.

 

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Hello,

 

can you post the output of:

 

show processes memory | include aclqos

 

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Hi Georg,

Please find the below 

 

#show processes memory | include aclqos
2541 169373696 0 272687104 7fa3da60/7fa3c740 aclqos

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thank you for the input.

 

So after reboot, do you still see high CPU process ? how long was the device uptime before you reload or reseat the module ?

 

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Hi Balaji, 

 

The device rebooted 80 days back but still i can see high CPU in one of the M1 LC

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show you post output

 

show process cpu |  ex 0.00

show process cpu history.

 

show loggin last 50

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#sh processes cpu sor | ex 0.0

CPU utilization for five seconds: 100%/0%; one minute: 99%; five minutes: 99%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
----- ----------- -------- ----- ------ ------ ------ --- -----------
2241 170313450 45702780 3 86.39% 81.75% 80.16% - aclqos
2211 189207150 23249211 8 21.73% 3.39% 2.85% - sensor

 

# sh processes cpu his

 

111111111111111111111111111111111111111111111111111111111111111111111111
000000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000000
100 **#***********************#***********************#*********************
90 **#***********************#***********************#*********************
80 **#***********************#***********************#*********************
70 **#***********************#***********************#*********************
60 **#***********************#***********************#*********************
50 *##**********************##**********************##*********************
40 *###*********************###*********************###********************
30 *###*********#***********###***#*****************###******#********#***#
20 ########################################################################
10 ########################################################################
0....5....1....1....2....2....3....3....4....4....5....5....6....6....7.
0 5 0 5 0 5 0 5 0 5 0 5 0

CPU% per hour (last 72 hours)

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as of now, i do not see any solution, if you have a cisco contract raise a TAC case to investigate for you.

 

another option upgrade to a new code of nexus os.

 

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