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Optimization #5123

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Bug #5124: alerts: 5.0.8/6.0.4 count noalert sigs towards built-in alert limit (5.0.x backport)

alerts: use alert queing in DetectEngineThreadCtx (5.0.x backport)

Added by Jeff Lucovsky 9 months ago. Updated 6 months ago.

Status:
Closed
Priority:
Normal
Target version:
Effort:
Difficulty:
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Description

Currently each alert is written directly to Packet::alerts during rule evaluation. Then at the end of the detection run for a packet, PacketAlertFinalize removes entries again, when applying thresholding, suppression and noalert. This leads to the issue in #4941 but is often also not very efficient esp when there are multiple rules to remove.

The idea of this ticket is to use a per DetectEngineThreadCtx specific queue of some sort to store the alert "candidates" and have PacketAlertFinalize only write the final alerts to the Packet structure.


Related issues 2 (0 open2 closed)

Related to Optimization #5178: detect/alert: improve packet alert queue handlingRejectedJuliana Fajardini ReichowActions
Copied from Optimization #4943: alerts: use alert queing in DetectEngineThreadCtxClosedJuliana Fajardini ReichowActions
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