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Konstantin Knizhnik fb1957936c Fix caclulation of LFC used_pages (#11095) 
## Problem

Async prefetch in LFC PR cause incorrect calculation of LFC
`used_pages`when page is overwritten

## Summary of changes

Decrement `used_pages` is page is overwritten.

---------

Co-authored-by: Konstantin Knizhnik <knizhnik@neon.tech>
Co-authored-by: Matthias van de Meent <matthias@neon.tech>
2025-03-10 18:28:55 +00:00
..
bitmap.h
[compute/postgres] feature: PostgreSQL 17 (#8573)
2024-09-12 23:18:41 +01:00
control_plane_connector.c
fix(adapter): password not set in role drop (#10130)
2024-12-14 17:37:13 +00:00
control_plane_connector.h
fix -Wmissing-prototypes for neon extension (#7010)
2024-03-05 10:03:44 -05:00
extension_server.c
Add neon.extension_server_{connect,request}_timeout (#10801)
2025-02-17 15:40:43 +00:00
extension_server.h
fix -Wmissing-prototypes for neon extension (#7010)
2024-03-05 10:03:44 -05:00
file_cache.c
Fix caclulation of LFC used_pages (#11095)
2025-03-10 18:28:55 +00:00
hll.c
Fix out-of-boundaries access in addSHLL function (#10840)
2025-02-17 12:54:17 +00:00
hll.h
implement rolling hyper-log-log algorithm (#8068)
2024-07-04 22:03:58 +03:00
libpagestore.c
Print state of connection buffer when no response is receioved from PS for a long time (#11145)
2025-03-09 18:36:36 +00:00
libpqwalproposer.h
Introduce NeonWALReader downloading sk -> compute WAL on demand.
2023-12-26 14:12:53 +04:00
logical_replication_monitor.c
Improve comments and log messages in the logical replication monitor (#9974)
2024-12-13 18:10:42 +00:00
logical_replication_monitor.h
Move logical replication slot monitor
2024-10-25 08:41:44 -05:00
Makefile
Create the notion of unstable extensions
2024-10-28 17:47:15 -05:00
neon_perf_counters.c
Add more timing histogram and gauge metrics to the Neon extension (#9116)
2024-10-14 20:30:21 +02:00
neon_perf_counters.h
Add more timing histogram and gauge metrics to the Neon extension (#9116)
2024-10-14 20:30:21 +02:00
neon_pgversioncompat.c
Create the notion of unstable extensions
2024-10-28 17:47:15 -05:00
neon_pgversioncompat.h
Replace BUFFERTAGS_EQUAL compatibility macro with new-style function (#9294)
2024-10-07 19:49:27 +03:00
neon_utils.c
compute <-> sk protocol v3 (#10647)
2025-02-25 11:56:05 +00:00
neon_utils.h
compute <-> sk protocol v3 (#10647)
2025-02-25 11:56:05 +00:00
neon_walreader.c
Fix direct reading from WAL buffers. (#9639)
2024-11-07 11:29:52 +00:00
neon_walreader.h
On-demand WAL download for walsender (#6872)
2024-05-06 10:54:07 -07:00
neon--1.0--1.1.sql
LFC fixes + statistics (#5727)
2023-11-23 08:59:19 +02:00
neon--1.0.sql
Yet another port of local file system cache (#2622)
2022-12-27 14:42:51 +02:00
neon--1.1--1.0.sql
Add downgrade scripts for neon extension. (#7065)
2024-03-08 20:42:35 +00:00
neon--1.1--1.2.sql
externalize statistics on LFC cache usage (#6906)
2024-02-26 16:06:00 +00:00
neon--1.2--1.1.sql
Add downgrade scripts for neon extension. (#7065)
2024-03-08 20:42:35 +00:00
neon--1.2--1.3.sql
Provide appoximation of working set using hyper-log-log algorithm in LFC (#6935)
2024-02-29 15:54:58 +02:00
neon--1.3--1.2.sql
Add downgrade scripts for neon extension. (#7065)
2024-03-08 20:42:35 +00:00
neon--1.3--1.4.sql
implement rolling hyper-log-log algorithm (#8068)
2024-07-04 22:03:58 +03:00
neon--1.4--1.3.sql
implement rolling hyper-log-log algorithm (#8068)
2024-07-04 22:03:58 +03:00
neon--1.4--1.5.sql
Add views for metrics about pageserver requests (#9008)
2024-09-23 21:28:50 +03:00
neon--1.5--1.4.sql
Add views for metrics about pageserver requests (#9008)
2024-09-23 21:28:50 +03:00
neon.c
Add configuration options to disable prevlink checks (#11138)
2025-03-10 17:02:30 +00:00
neon.control
Bump default neon extension version to 1.5 (#9188)
2024-09-30 09:20:52 +03:00
neon.h
Add configuration options to disable prevlink checks (#11138)
2025-03-10 17:02:30 +00:00
pagestore_client.h
PS/Prefetch: Use a timeout for reading data from TCP (#10834)
2025-02-27 14:00:18 +00:00
pagestore_smgr.c
Check response status in prefetch_lookup (#11080)
2025-03-05 10:03:09 +00:00
README.md
Add pgxn/neon/README.md
2023-11-23 18:53:03 +00:00
relsize_cache.c
Fix race condition in LRU list update in get_cached_relsize (#8807)
2024-08-22 23:53:37 +03:00
unstable_extensions.c
fix allow_unstable_extensions GUC - make it USERSET (#9563)
2024-10-29 14:25:23 +00:00
unstable_extensions.h
Create the notion of unstable extensions
2024-10-28 17:47:15 -05:00
walproposer_compat.c
compute <-> sk protocol v3 (#10647)
2025-02-25 11:56:05 +00:00
walproposer_pg.c
compute <-> sk protocol v3 (#10647)
2025-02-25 11:56:05 +00:00
walproposer.c
walproposer: basic infra to enable generations (#11002)
2025-03-03 13:20:20 +00:00
walproposer.h
walproposer: basic infra to enable generations (#11002)
2025-03-03 13:20:20 +00:00
walsender_hooks.c
Add configuration options to disable prevlink checks (#11138)
2025-03-10 17:02:30 +00:00
walsender_hooks.h
On-demand WAL download for walsender (#6872)
2024-05-06 10:54:07 -07:00

README.md

neon extension consists of several parts:

shared preload library neon.so

  • implements storage manager API and network communications with remote page server.

  • walproposer: implements broadcast protocol between postgres and WAL safekeepers.

  • control plane connector: Captures updates to roles/databases using ProcessUtility_hook and sends them to the control ProcessUtility_hook.

  • remote extension server: Request compute_ctl to download extension files.

  • file_cache: Local file cache is used to temporary store relations pages in local file system for better performance.

  • relsize_cache: Relation size cache for better neon performance.

SQL functions in neon--*.sql

Utility functions to expose neon specific information to user and metrics collection. This extension is created in all databases in the cluster by default.