fix(pageserver): report synthetic size = 1 if all tls offloaded (#11648)

## Problem

A quick workaround for https://github.com/neondatabase/neon/issues/11631

## Summary of changes

Report synthetic size == 1 if all timelines are offloaded.

Signed-off-by: Alex Chi Z <chi@neon.tech>
This commit is contained in:
Alex Chi Z.
2025-04-22 14:28:22 +00:00
committed by GitHub
parent 6173c0f44c
commit ad3519ebcb
@@ -263,7 +263,9 @@ where
while let Some((tenant_id, tenant)) = tenants.next().await {
let mut tenant_resident_size = 0;
for timeline in tenant.list_timelines() {
let timelines = tenant.list_timelines();
let timelines_len = timelines.len();
for timeline in timelines {
let timeline_id = timeline.timeline_id;
match TimelineSnapshot::collect(&timeline, ctx) {
@@ -289,6 +291,11 @@ where
tenant_resident_size += timeline.resident_physical_size();
}
if timelines_len == 0 {
// Force set it to 1 byte to avoid not being reported -- all timelines are offloaded.
tenant_resident_size = 1;
}
let snap = TenantSnapshot::collect(&tenant, tenant_resident_size);
snap.to_metrics(tenant_id, Utc::now(), cache, &mut current_metrics);
}