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651
September 20th, 2022 02:00
N1500p stack firmware 6.8.0.1 high cpu due ssltHelperTask
Hi,
does anybody determine way to high cpu on N1500 stack after upgrading firmware to 6.8.0.1 due ssltHelperTask?
The stack contains 4 x 1548p units. I rolled back to 6.7.1.10 because the switch had paketloss and high leadtime regularly:
What I noticed too, after reloading the stack, the poe-module of unit 4 did not come up. After reloading unit 4, it worked again. I have no screenshot but "sh power inline" shows unknown status of all ports of unit 4.
Regards,
Thorsten
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Konsumaffe
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October 17th, 2022 06:00
Hey,
in the meantime I determined, that the high cpu occured after updating to firmware 6.7.x.x in the past. I´ve downgraded the stack to 6.6.x.x et voilá the cpu goes down to normal.
The Dell-Support accepted the downgrade as the solution and seems not to be interested to find the root cause in the newer firmwares.
Regards,
Thorsten
DELL-Chris H
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September 20th, 2022 07:00
Konsumaffe,
I have not seen anything regarding that specific update, but I can look into it for you, yet with the issue occurring only under that update it may indeed be the update itself causing. Let me see what I can find, but just know you may be better off calling in to support, as they can analyze the issue directly.
Konsumaffe
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September 21st, 2022 02:00
Hey Chris,
thanks 4 your support. I will prepare a new test-stack and try again. Then I call the support. But it takes some time.
What I noticed in the last firmwares from 6.7.1.6 too; there are other processes that cause higer cpu then before. For example:
1391 USL_Worker_Task 8.55% 8.34% 7.98%
1567 StatsAppTask 10.22% 6.98% 6.77%
However, this only happens if your stack has 3 or 4 units.
If you have any feedback, let me know.
Regards,
Thorsten
FlorianBee
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September 23rd, 2024 07:25
Hi,
Any updates on this issue ? We are upgrading our parc of n1500 series from 6.6.2.9 to 6.8.1.4 and have the issue on only one switch (stack of two).
Seems like the high usage of this process occurred on all devices after the upgrade but lasted no more than 5-10minutes, it's been more than an hour so far.
show process cpu
Memory Utilization Report
status KBytes
------ ----------
free 434144
alloc 580692
CPU Utilization:
PID Name 5 Secs 60 Secs 300 Secs
---------- ------------------- -------- -------- --------
1505 ssltHelperTask 72.20% 77.87% 77.68%
We will consider a reboot at noon and maybe a version roll back if issue persists.
I could not find anything relevant in the releases notes.
best regards
(edited)
DELL-Erman O
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September 23rd, 2024 09:10
Hi,
I couldn't see on release notes any known issues or recommendations related to SSL traffic or the ssltHelperTask process. for version 6.8.1.4 to check for Additionally, You may monitor the SSL traffic on the affected switch to understand the volume and type of SSL traffic being processed.(wireshark) If you don’t change anything after reboot for 6.8.1.4, I would consider rolling back to version 6.6.2.9.
B.R.