SigNoz is an open-source APM. It helps developers monitor their applications & troubleshoot problems, an open-source alternative to DataDog, NewRelic, etc.

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Hey, can anyone tell what might be the reason for sudden spike in CPU utilization. there was no change in loas as such, but CPU utilisation spiked and all the events were dropped for 3 days

ah found the issue, it was related to space running out

where can we change the default TTL, if changing afterwards causes issues as of now?

You can export the instance metrics and put an alert on the disk size.

You can change that in the retention page, based on how much data you already have in the cluster resource usage will spike up to update TTL.

&gt; You can export the instance metrics and put an alert on the disk size.
you mean cloudwatch logs or using signoz only? can you share any reference doc

check this out <https://signoz.io/docs/userguide/send-metrics-cloud/>