Optimize DLQ segment directory scans with single-pass logic.#18970

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mashhurs:dlq-file-operations-improvements

Apr 16, 2026

Commits on Apr 13, 2026

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Commits on Apr 14, 2026

When removing the segment, track DLQ currentQueueSize incrementally instead of rescanning filesystem
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Update logstash-core/src/main/java/org/logstash/common/io/DeadLetterQueueUtils.java

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