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Add alerts for mean db blocked seconds #22822
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Notifying subscribers in CODENOTIFY files for diff 76c4027...319c52e.
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bobheadxi
reviewed
Jul 14, 2021
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67
| Warning: monitoring.Alert().GreaterOrEqual(10, nil).For(5 * time.Minute), | ||
| Critical: monitoring.Alert().GreaterOrEqual(20, nil).For(10 * time.Minute), |
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I think this should be 10 and 20 milliseconds respectively, so in seconds it should be 0.01 and 0.02 right?
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I think 5ms should be the warning threshold, and 10ms critical.
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Updated to be 5ms & 10ms
tsenart
approved these changes
Jul 14, 2021
daxmc99
changed the title
tsenart
reviewed
Jul 16, 2021
| Warning: monitoring.Alert().GreaterOrEqual(0.05, nil).For(5 * time.Minute), | ||
| Critical: monitoring.Alert().GreaterOrEqual(0.10, nil).For(10 * time.Minute), | ||
| Owner: monitoring.ObservableOwnerCoreApplication, | ||
| PossibleSolutions: "none", |
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Possible solution can actually be:
- Increase SRC_PGSQL_MAX_OPEN together with giving more memory to the database if needed.
- Scale up Postgres memory / cpus.
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During the incident today one key signal that would have been helpful was the mean db block time
This value surged during the incident and it would have been helpful to call this out.