---
title: "LSN (Log Sequence Number) — Database Glossary | Xata"
description: "A 64-bit integer identifying a specific byte position in the WAL stream. Format: 16/B374D848. Used to track replication progress, recovery targets, and ..."
source: "https://xata.io/glossary/lsn"
---

# LSN (Log Sequence Number)

WAL

A 64-bit integer identifying a specific byte position in the WAL stream. Format: 16/B374D848. Used to track replication progress, recovery targets, and WAL consumption. Monotonically increasing.

Related terms

WAL[Replication Slot](/glossary/replication-slot)

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