Elastic Agent to Logstash to Elasticsearch: Logstash Persistent Queue (PQ) for buffering

Ingest model: Elastic Agent to Logstash persistent queue to Elasticsearch
Use when: Your data flow may encounter network issues, bursts of events, and/or downstream unavailability and you need the ability to buffer the data before ingestion.

Info on configuring Elastic Agent:

For info on Logstash plugins:

For info on using Logstash for buffering and data resiliency, check out this section in the Logstash Reference:

Info on Elasticsearch: