Erik Grinaker 6c83ac3fd2 pageserver: do all L0 compaction before image compaction (#10744) ...

## Problem

Image compaction can starve out L0 compaction if a tenant has several
timelines with L0 debt.

Touches #10694.
Requires #10740.

## Summary of changes

* Add an initial L0 compaction pass, in order of L0 count.
* Add a tenant option `compaction_l0_first` to control the L0 pass
(disabled by default).
* Add `CompactFlags::OnlyL0Compaction` to run an L0-only compaction
pass.
* Clean up the compaction iteration logic.

A later PR will use separate semaphores for the L0 and image compaction
passes to avoid cross-tenant L0 starvation. That PR will also make image
compaction yield if _any_ of the tenant's timelines have pending L0
compaction to further avoid starvation.

2025-02-11 22:08:46 +00:00

..

src

pageserver: do all L0 compaction before image compaction (#10744)

2025-02-11 22:08:46 +00:00

Cargo.toml

fast imports: initial Importer and Storage changes (#9218)

2024-11-22 22:47:06 +00:00