Heikki Linnakangas 431d32756b Add a buffer cache, and use it to store materialized pages. ...

The buffer cache is shared across all tenants, allowing memory to be
dynamically allocated where it's needed the most. The cache works on 8 kB
pages, and uses the clock algorithm for replacement policy; same as the
PostgreSQL buffer cache.

One peculiarity is that the materialized page versions can be looked up
by an inexact LSN, to find the latest page version with an LSN >= the
search key.

The code is structured to support caching other kinds of pages in the same
cache in the future, but with a different mapping key.

Co-authored-by: Patrick Insinger <patrick@zenith.tech>

2021-11-12 11:02:12 -08:00

..

bin

Add a buffer cache, and use it to store materialized pages.

2021-11-12 11:02:12 -08:00

http

review cleanups

2021-10-27 13:30:34 +03:00

layered_repository

Add a buffer cache, and use it to store materialized pages.

2021-11-12 11:02:12 -08:00

remote_storage

Allow downloading remote files partially

2021-11-11 18:51:34 +02:00

basebackup.rs

Use PG timelineid 1 everywhere.

2021-11-11 13:53:39 +03:00

branches.rs

Better context when erroring

2021-11-11 19:22:05 +02:00

layered_repository.rs

Add a buffer cache, and use it to store materialized pages.

2021-11-12 11:02:12 -08:00

lib.rs

Add a buffer cache, and use it to store materialized pages.

2021-11-12 11:02:12 -08:00

page_cache.rs

Add a buffer cache, and use it to store materialized pages.

2021-11-12 11:02:12 -08:00

page_service.rs

review cleanups

2021-10-27 13:30:34 +03:00

relish.rs

fix clippy warnings

2021-09-02 18:54:44 +03:00

remote_storage.rs

Allow downloading remote files partially

2021-11-11 18:51:34 +02:00

repository.rs

Remove a couple of unused functions.

2021-11-03 19:10:23 +02:00

restore_local_repo.rs

On new repo, start writing WAL only after the initial checkpoint record.

2021-10-19 09:48:04 +03:00

tenant_mgr.rs

Reduce "relish" word usages in remote storage

2021-11-04 12:53:42 +02:00

tenant_threads.rs

WIP. Launch and shutdown tenant threads together with walreceiver.

2021-11-01 18:04:00 +03:00

virtual_file.rs

Fix locking issues in VirtualFile machinery.

2021-11-11 20:12:59 +02:00

waldecoder.rs

Optimize WAL decoding slightly.

2021-10-14 14:21:23 +03:00

walreceiver.rs

Put a global limit on memory used by in-memory layers.

2021-11-02 15:49:39 +02:00

walredo.rs

Use poll() in communication with WAL redo process.

2021-11-04 10:39:04 +02:00