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At-Least-Once Delivery and Acknowledgment Filebeat utilizes an at-least-once delivery model to ensure data integrity. By default, the agent waits for an acknowledgment from Elasticsearch before removing events from its internal queue. When a bulk request fails, the agent employs exponential backoff and splits the bulk to retry only the failed items. Pipeline
Failed to parse date field [@timestamp]: unable to parse date when timezone offset present but no timezone configured Goal: Determine whether Elastic Beats should automatically interpret timezone offsets embedded in log timestamps when no explicit timezone setting is provided in the input configuration. Constraints: The behavior must be consistent across Fil
Filebeat multiline processor missing size limit The goal is to prevent unbounded memory consumption when processing multiline log events that lack a matching end pattern. Currently Filebeat buffers each multiline event in memory until the end pattern is found, with no configurable maximum byte count or timeout. This leaves deployments vulnerable to out‑of‑me
beats
elasticsearch