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Clarification on Interaction Between dt.event.timeout and Alerting Profile "Problem Send Delay" in Dynatrace

Nadeesh
Visitor

Hi,

In our Alerting Profile, the "Problem send delay in minutes" has been increased from 0 to 30 minutes. This is intended to reduce noise by delaying notifications for short-lived problems.

We also use log-based custom event extraction to monitor feed delays. In these custom events, we've configured the property dt.event.timeout to 180 minutes (3 hours) to control how long the event remains open before automatically closing if no new matching logs arrive.

 

My questions are:

With the alerting profile set to a 30-minute "Problem send delay" and dt.event.timeout configured to 180 minutes, does Dynatrace:

  • Wait the 30 minutes and then re-check if new log entries have appeared before sending the alert (i.e., only alert if there are fresh events during the delay period)?
  • Or does Dynatrace send the alert as soon as the 30-minute delay expires regardless of new entries, with the 180-minute timeout only affecting how long the problem stays open?

We have noticed some false alerts caused by old log entries (e.g., a log with a timestamp from several weeks ago triggered an incident recently). Our current matcher filters based on phrases and log source but does not filter logs based on their timestamp.

Is there a recommended way to add timestamp validation in log event extraction so that alerts only trigger on recent log entries?

1 REPLY 1

Yosi_Neuman
DynaMight Guru
DynaMight Guru

Hi @Nadeesh 

Alerting Profile time configuration related to when add the AP to the problem after problem mark as open.

Time out of event related to the marking the problem as closed after this period of time.  

Once the AP is added to the problem you can use it for problem notification.

Regarding old time stamp, wonder if your ingest mechanism configure right to use the timestamp because of the 24 hours limitation on timestamp

Yosi_Neuman_0-1749192331762.png

HTH

Yos 

 

dynatrace certificated professional - dynatrace master partner - Matrix Soft Ware Division - Israel

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