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pageserver: remove legacy TimelineInfo::latest_gc_cutoff field (2/2) (#11136)

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## Problem

This field was retained for backward compat only in #10707.

Once https://github.com/neondatabase/cloud/pull/25233 is released,
nothing will be reading this field.

Related: https://github.com/neondatabase/cloud/issues/24250

## Summary of changes

- Remove TimelineInfo::latest_gc_cutoff_lsn
This commit is contained in:
John Spray
2025-04-02 16:21:58 +01:00
committed by GitHub
parent 9df230c837
commit cb19e4e05d
2 changed files with 3 additions and 6 deletions
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5
libs/pageserver_api/src/models.rs
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@@ -1418,11 +1418,6 @@ pub struct TimelineInfo {
pub last_record_lsn: Lsn,
pub prev_record_lsn: Option<Lsn>,
/// Legacy field, retained for one version to enable old storage controller to
/// decode (it was a mandatory field).
#[serde(default, rename = "latest_gc_cutoff_lsn")]
pub _unused: Lsn,
/// The LSN up to which GC has advanced: older data may still exist but it is not available for clients.
/// This LSN is not suitable for deciding where to create branches etc: use [`TimelineInfo::min_readable_lsn`] instead,
/// as it is easier to reason about.