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coordination #96447

[epic] Failed systemd services and job age alerts

Added by cdywan 4 months ago. Updated 26 days ago.

Status:
Blocked
Priority:
Low
Assignee:
Target version:
Start date:
2021-08-04
Due date:
% Done:

67%

Estimated time:
(Total: 0.00 h)

Description

Observation

  • Alerts Disk I/O time for /dev/vdd (/results) handled in #96554
  • Alerts for Job age (scheduled)
  • Alerts for Failed systemd services
    • This is about the alert from 02.08.21 01:17 (the one from 05.08.21 07:26 was caused by a user's misconfiguration).

Suggestion

  • Bump our thresholds
  • Investigate if our average load has increased immensely e.g. new test groups being scheduled
  • Look at systemd journal while the alert is running (short of having #96551)
  • Check if we have data on reduced heat/ power in server room 2
  • Job age (scheduled) (median) is likely due to issues with the WORKER_CLASS of https://openqa.suse.de/tests/6513484

Subtasks

action #96551: Persistent records of systemd journal size:SFeedbackokurz

action #96554: Mitigate on-going disk I/O alerts size:MResolvedmkittler

action #97043: job queue hitting new record 14k jobsResolvedokurz


Related issues

Related to openQA Infrastructure - action #96710: Error `Can't call method "write" on an undefined value` shows up in worker log leading to incompletesResolved2021-08-102021-08-31

Related to openQA Project - action #96557: jobs run into MAX_SETUP_TIME, one hour between 'Downloading' and 'Download processed' and no useful output in between auto_review:"timeout: setup exceeded MAX_SETUP_TIME":retryResolved2021-08-042021-08-19

Related to openQA Infrastructure - action #96552: Persistent records of I/O usage by process size:MWorkable2021-08-04

Related to openQA Project - action #99246: Published QCOW images appear to be uncompressedResolved2021-09-242021-10-09

History

#1 Updated by cdywan 4 months ago

Disk I/O time for /dev/vde (/space-slow) with vde: read 20068.460 was alterting again for a minute

#2 Updated by cdywan 4 months ago

  • Description updated (diff)

#3 Updated by cdywan 4 months ago

Disk I/O time for /dev/vdd (/results) once more alerting with vdd: write 13648.552 for 9 minutes.

#4 Updated by okurz 4 months ago

  • Priority changed from Normal to Urgent

bumping to "urgent" to counter alarm fatigue.

#5 Updated by cdywan 4 months ago

  • Subject changed from Disk I/O and job age schedule alerts to [epic] Disk I/O and job age schedule alerts
  • Description updated (diff)

#6 Updated by cdywan 4 months ago

  • Status changed from New to Workable

#7 Updated by mkittler 4 months ago

  • Subject changed from [epic] Disk I/O and job age schedule alerts to [epic] Failed systemd services and job age alerts
  • Description updated (diff)

#8 Updated by cdywan 4 months ago

  • Related to action #96710: Error `Can't call method "write" on an undefined value` shows up in worker log leading to incompletes added

#9 Updated by cdywan 4 months ago

  • Related to action #96557: jobs run into MAX_SETUP_TIME, one hour between 'Downloading' and 'Download processed' and no useful output in between auto_review:"timeout: setup exceeded MAX_SETUP_TIME":retry added

#11 Updated by cdywan 3 months ago

  • Related to action #96552: Persistent records of I/O usage by process size:M added

#12 Updated by mkittler 3 months ago

Not sure how workable this ticket is. There's only one point left of the ones mentioned under observation and retrospectively it is hard to tell what was wrong at the time and we handled future alerts of the same kind. I get that this is an epic but the ticket title and description don't relate with the remaining sub tasks in a meaningful way.

#13 Updated by okurz about 1 month ago

  • Tracker changed from action to coordination

#14 Updated by okurz about 1 month ago

  • Related to action #99246: Published QCOW images appear to be uncompressed added

#15 Updated by okurz about 1 month ago

  • Status changed from Workable to Blocked
  • Assignee set to okurz

Looks like this could also be related to #99246 . I think see have all the mentioned ideas covered in follow up tasks or resolved already. Tracking remaining subtask

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