John Spray b8095f84a0 pageserver: make true GC cutoff visible in admin API, rebrand latest_gc_cutoff as applied_gc_cutoff (#10707) ...

## Problem

We expose `latest_gc_cutoff` in our API, and callers understandably were
using that to validate LSNs for branch creation. However, this is _not_
the true GC cutoff from a user's point of view: it's just the point at
which we last actually did GC. The actual cutoff used when validating
branch creations and page_service reads is the min() of latest_gc_cutoff
and the planned GC lsn in GcInfo.

Closes: https://github.com/neondatabase/neon/issues/10639

## Summary of changes

- Expose the more useful min() of GC cutoffs as `gc_cutoff_lsn` in the
API, so that the most obviously named field is really the one people
should use.
- Retain the ability to read the LSN at which GC was actually done, in
an `applied_gc_cutoff_lsn` field.
- Internally rename `latest_gc_cutoff_lsn` to `applied_gc_cutoff_lsn`
("latest" was a confusing name, as the value in GcInfo is more up to
date in terms of what a user experiences)
- Temporarily preserve the old `latest_gc_cutoff_lsn` field for compat
with control plane until we update it to use the new field.

---------

Co-authored-by: Arpad Müller <arpad-m@users.noreply.github.com>

2025-02-13 10:33:47 +00:00

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data/extension_test/5670669815

[compute/postgres] feature: PostgreSQL 17 (#8573)

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test_ancestor_branch.py

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test_attach_tenant_config.py

pageserver: add separate semaphore for L0 compaction (#10780)

2025-02-12 16:12:21 +00:00

test_auth_broker.py

[auth_broker]: regress test (#9541)

2024-10-29 11:39:09 +00:00

test_auth.py

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test_backpressure.py

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test_bad_connection.py

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test_basebackup_error.py

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test_branch_and_gc.py

pageserver: add compaction backpressure for layer flushes (#10405)

2025-01-24 09:47:28 +00:00

test_branch_behind.py

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test_branching.py

Revert "pageserver: revert flush backpressure" (#10402)" (#10533)

2025-01-28 13:33:58 +00:00

test_broken_timeline.py

pageserver: fix spurious error logs in timeline lifecycle (#9589)

2024-10-31 14:44:59 +00:00

test_build_info_metric.py

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test_change_pageserver.py

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test_clog_truncate.py

pageserver: tighten up code around SLRU dir key handling (#10082)

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test_close_fds.py

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test_combocid.py

test_runner: use LFC by default (#8613)

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test_compaction.py

tests: make Workload more determinstic (#10741)

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test_compatibility.py

pageserver: clean up DeletionQueue push_layers_sync (#10701)

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test_compute_catalog.py

compute_ctl: database_schema should keep process::Child as part of returned value (#10273)

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test_compute_locales.py

Switch compute-related locales to C.UTF-8 by default

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test_compute_metrics.py

Remove unused compute_ctl HTTP routes (#10544)

2025-01-29 19:22:01 +00:00

test_compute_migrations.py

chore(compute): Simplify new compute_ctl metrics and fix flaky test (#10560)

2025-01-29 18:09:25 +00:00

test_compute_reconfigure.py

fix(compute): Respect skip_pg_catalog_updates in reconfigure() (#10696)

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test_config.py

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test_crafted_wal_end.py

safekeeper: use protobuf for sending compressed records to pageserver (#9821)

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test_createdropdb.py

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test_createuser.py

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test_ddl_forwarding.py

fix(adapter): password not set in role drop (#10130)

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test_disk_usage_eviction.py

pageserver/storcon: add patch endpoints for tenant config metrics (#10020)

2024-12-11 19:16:33 +00:00

test_download_extensions.py

Fix logic for checking if a compute can install a remote extension (#10656)

2025-02-05 14:58:33 +00:00

test_endpoint_crash.py

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test_explain_with_lfc_stats.py

test_runner: use LFC by default (#8613)

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test_extensions.py

compute_ctl: Add endpoint that allows extensions to be installed (#9344)

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test_fsm_truncate.py

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test_fullbackup.py

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test_gc_aggressive.py

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test_gin_redo.py

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test_hot_standby.py

test_runner: improve wait_until (#9936)

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test_import_pgdata.py

pageserver: make true GC cutoff visible in admin API, rebrand latest_gc_cutoff as applied_gc_cutoff (#10707)

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test_import.py

pageserver: fix spurious error logs in timeline lifecycle (#9589)

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test_ingestion_layer_size.py

pageserver/storcon: add patch endpoints for tenant config metrics (#10020)

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test_large_schema.py

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test_layer_bloating.py

Fix logical_replication_sync test fixture (#10531)

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test_layer_eviction.py

test_runner: skip more tests using decorator instead of pytest.skip (#9704)

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test_layer_writers_fail.py

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test_layers_from_future.py

feat(pageserver): repartition on L0-L1 boundary (#10548)

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test_lfc_resize.py

tests: smaller datasets in LFC tests (#10346)

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test_lfc_working_set_approximation.py

test_runner: use LFC by default (#8613)

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test_local_file_cache.py

Compute/LFC: Apply limits consistently (#10449)

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test_logging.py

test_runner: improve wait_until (#9936)

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test_logical_replication.py

Fix logical_replication_sync test fixture (#10531)

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test_lsn_mapping.py

test_runner: improve wait_until (#9936)

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test_multixact.py

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test_nbtree_pagesplit_cycleid.py

Make sure we request pages with a known-flushed LSN. (#10413)

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test_neon_cli.py

test_runner: skip more tests using decorator instead of pytest.skip (#9704)

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test_neon_extension.py

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test_neon_local_cli.py

Implement a second HTTP server within compute_ctl (#10574)

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test_neon_superuser.py

test_runner: improve wait_until (#9936)

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test_next_xid.py

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test_normal_work.py

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test_oid_overflow.py

test_runner: use LFC by default (#8613)

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test_old_request_lsn.py

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test_ondemand_download.py

pageserver: handle shutdown cleanly in layer download API (#10598)

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test_ondemand_slru_download.py

Python 3.11 (#9515)

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test_ondemand_wal_download.py

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test_page_service_batching_regressions.py

fix(page_service pipelining): tenant cannot shut down because gate kept open while flushing responses (#10386)

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test_pageserver_api.py

test_runner: improve wait_until (#9936)

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test_pageserver_catchup.py

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test_pageserver_crash_consistency.py

pageserver/storcon: add patch endpoints for tenant config metrics (#10020)

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test_pageserver_generations.py

pageserver: clean up DeletionQueue push_layers_sync (#10701)

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test_pageserver_getpage_throttle.py

tests & benchmarks: unify the way we customize the default tenant config (#9992)

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test_pageserver_layer_rolling.py

fix(pageserver): run psql in thread to avoid blocking (#10177)

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test_pageserver_metric_collection.py

Improve typing in test_runner/fixtures/httpserver.py (#10103)

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test_pageserver_reconnect.py

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test_pageserver_restart.py

fix(neon): Add tests clarifying postgres sigabrt on pageserver unavailability (#10666)

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test_pageserver_restarts_under_workload.py

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test_pageserver_secondary.py

pageserver: write heatmap to disk after uploading it (#10650)

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test_pg_query_cancellation.py

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test_pg_regress.py

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test_pg_waldump.py

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test_physical_and_logical_replicaiton.py

Fix logical_replication_sync test fixture (#10531)

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test_physical_replication.py

Increase max connection for replica to prevent test flukyness (#10306)

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test_pitr_gc.py

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test_postgres_version.py

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test_prefetch_buffer_resize.py

test_prefetch: reduce timeout to default 5m from 10m (#10105)

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test_proxy_allowed_ips.py

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test_proxy_metric_collection.py

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test_proxy_websockets.py

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test_proxy.py

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test_read_validation.py

test_runner: use LFC by default (#8613)

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test_readonly_node.py

pageserver: make true GC cutoff visible in admin API, rebrand latest_gc_cutoff as applied_gc_cutoff (#10707)

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test_recovery.py

pageserver: add compaction backpressure for layer flushes (#10405)

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test_remote_storage.py

Revert "pageserver: revert flush backpressure" (#10402)" (#10533)

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test_replica_start.py

test_runner: improve wait_until (#9936)

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test_role_grants.py

compute_ctl: Add endpoint that allows setting role grants (#9395)

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test_s3_restore.py

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test_setup.py

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test_sharding.py

tests: make Workload more determinstic (#10741)

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test_sni_router.py

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test_storage_controller.py

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test_storage_scrubber.py

tests: make Workload more determinstic (#10741)

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test_subscriber_branching.py

Fix logical_replication_sync test fixture (#10531)

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test_subscriber_restart.py

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test_subxacts.py

safekeeper: use protobuf for sending compressed records to pageserver (#9821)

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test_tenant_conf.py

pageserver/storcon: add patch endpoints for tenant config metrics (#10020)

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test_tenant_delete.py

tests: refactor test_tenant_delete_races_timeline_creation (#10425)

2025-01-16 14:11:33 +00:00

test_tenant_detach.py

test_runner: improve wait_until (#9936)

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test_tenant_relocation.py

test_runner: improve wait_until (#9936)

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test_tenant_size.py

test_runner: improve wait_until (#9936)

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test_tenant_tasks.py

test_runner: improve wait_until (#9936)

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test_tenants_with_remote_storage.py

test_runner: improve wait_until (#9936)

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test_tenants.py

pageserver: include node id when subscribing to SK (#10432)

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test_threshold_based_eviction.py

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test_timeline_archive.py

Change timeline_offloading setting default to true (#10760)

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test_timeline_delete.py

test_runner: improve wait_until (#9936)

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test_timeline_detach_ancestor.py

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2025-01-23 16:43:04 +00:00

test_timeline_gc_blocking.py

test_runner: improve wait_until (#9936)

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test_timeline_size.py

pageserver: add compaction backpressure for layer flushes (#10405)

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test_truncate.py

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test_twophase.py

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test_unlogged.py

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test_unstable_extensions.py

Create the notion of unstable extensions

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test_vm_bits.py

pageserver: add compaction backpressure for layer flushes (#10405)

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test_vm_truncate.py

Correctly truncate VM (#9342)

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test_wal_acceptor_async.py

Implement a second HTTP server within compute_ctl (#10574)

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test_wal_acceptor.py

safekeeper: add membership configuration switch endpoint (#10241)

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test_wal_receiver.py

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test_wal_restore.py

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test_walredo_not_left_behind_on_detach.py

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