# Alerts does not trigger after setting some memory threshold

**URL:** <https://community.dynatrace.com/t/alerts-does-not-trigger-after-setting-some-memory-threshold/34517>\
**Category:** Alerting\
**Tags:** threshold, problems-classic\
**Created:** [March 16, 2022, 4:20am UTC](https://community.dynatrace.com/t/alerts-does-not-trigger-after-setting-some-memory-threshold/34517 "2022-03-16T04:20:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Afrezal\_Karim](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/afrezal_karim/32/6937_2.png) [@Afrezal\_Karim](https://community.dynatrace.com/u/Afrezal_Karim)\
**Post date:** [March 16, 2022, 4:20am UTC](https://community.dynatrace.com/t/alerts-does-not-trigger-after-setting-some-memory-threshold/34517/1 "2022-03-16T04:20:08Z")

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Dear Dynatrace Gurus,

Was trying to play around with the alertings but somehow i found that the memory alert is not triggering after i have setup a custom threshold as per screenshot below.

Any idea what i may have missed on the settings ?.

Thanks for helping out. I appreciate it.

 ![Afrezal_Karim_0-1647404340981.png](https://global.discourse-cdn.com/dynatrace/original/2X/0/0aa93b316fb14eed58c3489ec362579054f43929.png)

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**Author:** ![Fin\_Ubels](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/fin_ubels/32/18008_2.png) [@Fin\_Ubels](https://community.dynatrace.com/u/Fin_Ubels)\
**Post date:** [March 16, 2022, 11:42pm UTC](https://community.dynatrace.com/t/alerts-does-not-trigger-after-setting-some-memory-threshold/34517/2 "2022-03-16T23:42:02Z")

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Hey Afrezal,  
When setting custom thresholds through that method it takes into account both memory usage AND page faults so just double check you are breaching both of those thresholds at the same time. If you are confirmed to be breaching both of those thresholds and it still isn’t reporting then I’m not too sure what could cause that sorry. I haven’t been able to test it in my own environment since I don’t have any reported page faults.

A different approach which I have tested could be to set alerts for just a single metric like memory usage or page faults. You can set that up in settings. The following docs page walks through that process.

> **[Metric events](https://docs.dynatrace.com/docs/dynatrace-intelligence/anomaly-detection-classic/metric-events)**
>
> Learn about metric events in Dynatrace

Hopefully this helps!