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action #96807

Web UI is slow and Apache Response Time alert got triggered

Added by cdywan 4 months ago. Updated 3 months ago.

Status:
Resolved
Priority:
High
Assignee:
Target version:
Start date:
2021-08-12
Due date:
2021-10-01
% Done:

0%

Estimated time:

Description

Observation

I was already investigating #96795 wondering if that could be causing the slowness of the web UI and then I saw this alert:

[Alerting] Apache Response Time alert
The apache response time exceeded the alert threshold. * Check the load of the web UI host * Consider restarting the openQA web UI service and/or apache Also see #73633

Although it went back to OK after 2 minutes I decided to file it in case it comes back.


Related issues

Related to openQA Infrastructure - action #96554: Mitigate on-going disk I/O alerts size:MResolved2021-08-04

Related to openQA Infrastructure - action #96795: CPU Load alert and telegraf going between 41%, 98.5% and 115% CPUResolved2021-08-122021-08-28

Related to openQA Infrastructure - action #96713: Slow grep in openqa-label-known-issues leads to high CPU usageResolved2021-09-10

History

#1 Updated by tinita 4 months ago

  • Priority changed from Normal to High
  • Target version set to Ready

#2 Updated by cdywan 4 months ago

  • Related to action #96554: Mitigate on-going disk I/O alerts size:M added

#3 Updated by cdywan 4 months ago

  • Related to action #96795: CPU Load alert and telegraf going between 41%, 98.5% and 115% CPU added

#4 Updated by cdywan 4 months ago

  • Related to action #96713: Slow grep in openqa-label-known-issues leads to high CPU usage added

#5 Updated by cdywan 4 months ago

  • Status changed from New to Feedback

The alert hasn't fired anymore so far. Putting it in Feedback as we need to confirm if it's gonna happen with the related tickets sorted.

#6 Updated by okurz 3 months ago

  • Due date set to 2021-10-01
  • Status changed from Feedback to Blocked
  • Assignee set to okurz

There should be no "Feedback" without assignee as we commonly overlook them. I can look again after the related tasks are resolved.

#7 Updated by okurz 3 months ago

  • Status changed from Blocked to Resolved

After all the related tasks are resolved I checked the webUI performance and it's okay-ish and the apache response time graphs also look ok.

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