Erik Grinaker f62047ae97 pageserver: add separate semaphore for L0 compaction (#10780) ...

## Problem

L0 compaction frequently gets starved out by other background tasks and
image/GC compaction. L0 compaction must be responsive to keep read
amplification under control.

Touches #10694.
Resolves #10689.

## Summary of changes

Use a separate semaphore for the L0-only compaction pass.

* Add a `CONCURRENT_L0_COMPACTION_TASKS` semaphore and
`BackgroundLoopKind::L0Compaction`.
* Add a setting `compaction_l0_semaphore` (default off via
`compaction_l0_first`).
* Use the L0 semaphore when doing an `OnlyL0Compaction` pass.
* Use the background semaphore when doing a regular compaction pass
(which includes an initial L0 pass).
* While waiting for the background semaphore, yield for L0 compaction if
triggered.
* Add `CompactFlags::NoYield` to disable L0 yielding, and set it for the
HTTP API route.
* Remove the old `use_compaction_semaphore` setting and
compaction-scoped semaphore.
* Remove the warning when waiting for a semaphore; it's noisy and we
have metrics.

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

..

data/extension_test/5670669815

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

2024-09-12 23:18:41 +01:00

test_ancestor_branch.py

Enable all pyupgrade checks in ruff

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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

Enable all pyupgrade checks in ruff

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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)

2024-12-16 10:06:08 +00:00

test_close_fds.py

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test_combocid.py

test_runner: use LFC by default (#8613)

2024-11-25 09:01:05 +00:00

test_compaction.py

tests: make Workload more determinstic (#10741)

2025-02-12 12:35:29 +00:00

test_compatibility.py

pageserver: clean up DeletionQueue push_layers_sync (#10701)

2025-02-07 13:03:01 +00:00

test_compute_catalog.py

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

2025-02-11 07:02:13 +00:00

test_compute_locales.py

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

2024-11-08 12:19:18 -06:00

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_config.py

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test_crafted_wal_end.py

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

2024-11-27 12:12:21 +00:00

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)

2024-12-14 17:37:13 +00:00

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)

2024-11-25 09:01:05 +00:00

test_extensions.py

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

2024-10-18 15:07:36 +03:00

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)

2024-12-02 10:26:15 +00:00

test_import_pgdata.py

tests: Speed up test_pgdata_import_smoke on Postgres v17 (#10567)

2025-01-30 22:55:17 +00:00

test_import.py

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

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

test_ingestion_layer_size.py

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

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

test_large_schema.py

Enable all pyupgrade checks in ruff

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test_layer_bloating.py

Fix logical_replication_sync test fixture (#10531)

2025-02-03 12:44:47 +00:00

test_layer_eviction.py

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

2024-11-11 18:07:01 +00:00

test_layer_writers_fail.py

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test_layers_from_future.py

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

2025-02-10 14:25:48 +00:00

test_lfc_resize.py

tests: smaller datasets in LFC tests (#10346)

2025-01-10 15:53:23 +00:00

test_lfc_working_set_approximation.py

test_runner: use LFC by default (#8613)

2024-11-25 09:01:05 +00:00

test_local_file_cache.py

Compute/LFC: Apply limits consistently (#10449)

2025-01-20 18:29:21 +00:00

test_logging.py

test_runner: improve wait_until (#9936)

2024-12-02 10:26:15 +00:00

test_logical_replication.py

Fix logical_replication_sync test fixture (#10531)

2025-02-03 12:44:47 +00:00

test_lsn_mapping.py

test_runner: improve wait_until (#9936)

2024-12-02 10:26:15 +00:00

test_multixact.py

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test_nbtree_pagesplit_cycleid.py

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

2025-01-16 08:34:11 +00:00

test_neon_cli.py

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

2024-11-11 18:07:01 +00:00

test_neon_extension.py

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test_neon_local_cli.py

Implement a second HTTP server within compute_ctl (#10574)

2025-02-11 18:02:22 +00:00

test_neon_superuser.py

test_runner: improve wait_until (#9936)

2024-12-02 10:26:15 +00:00

test_next_xid.py

Update ruff to much newer version (#9433)

2024-10-18 12:42:41 +02:00

test_normal_work.py

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test_oid_overflow.py

test_runner: use LFC by default (#8613)

2024-11-25 09:01:05 +00:00

test_old_request_lsn.py

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test_ondemand_download.py

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

2025-01-30 22:43:36 +00:00

test_ondemand_slru_download.py

Python 3.11 (#9515)

2024-11-21 16:25:31 +00:00

test_ondemand_wal_download.py

Register custom xlog reader callbacks for on-demand WAL download in StartupDecodingContext (#9007)

2024-11-19 22:29:57 +02:00

test_page_service_batching_regressions.py

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

2025-01-16 20:34:02 +00:00

test_pageserver_api.py

test_runner: improve wait_until (#9936)

2024-12-02 10:26:15 +00:00

test_pageserver_catchup.py

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test_pageserver_crash_consistency.py

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

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

test_pageserver_generations.py

pageserver: clean up DeletionQueue push_layers_sync (#10701)

2025-02-07 13:03:01 +00:00

test_pageserver_getpage_throttle.py

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

2024-12-03 22:07:03 +00:00

test_pageserver_layer_rolling.py

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

2024-12-19 09:45:06 +00:00

test_pageserver_metric_collection.py

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

2024-12-11 22:21:42 +00:00

test_pageserver_reconnect.py

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test_pageserver_restart.py

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

2025-02-12 10:52:26 +00:00

test_pageserver_restarts_under_workload.py

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test_pageserver_secondary.py

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

2025-02-04 17:52:54 +00:00

test_pg_query_cancellation.py

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test_pg_regress.py

Enable sanitizers for postgres v17 (#10401)

2025-02-06 12:53:43 +00:00

test_pg_waldump.py

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test_physical_and_logical_replicaiton.py

Fix logical_replication_sync test fixture (#10531)

2025-02-03 12:44:47 +00:00

test_physical_replication.py

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

2025-01-13 20:01:03 +00:00

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)

2024-12-13 14:52:54 +00:00

test_proxy_allowed_ips.py

switch from localtest.me to local.neon.build (#10714)

2025-02-07 12:25:16 +00:00

test_proxy_metric_collection.py

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

2024-12-11 22:21:42 +00:00

test_proxy_websockets.py

Add a websockets tunnel and a test for the proxy's websockets support. (#3823)

2025-01-13 11:35:39 +00:00

test_proxy.py

switch from localtest.me to local.neon.build (#10714)

2025-02-07 12:25:16 +00:00

test_read_validation.py

test_runner: use LFC by default (#8613)

2024-11-25 09:01:05 +00:00

test_readonly_node.py

test_runner: improve wait_until (#9936)

2024-12-02 10:26:15 +00:00

test_recovery.py

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

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

test_remote_storage.py

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

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

test_replica_start.py

test_runner: improve wait_until (#9936)

2024-12-02 10:26:15 +00:00

test_role_grants.py

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

2024-10-18 11:25:45 +01:00

test_s3_restore.py

Python 3.11 (#9515)

2024-11-21 16:25:31 +00:00

test_setup.py

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test_sharding.py

tests: make Workload more determinstic (#10741)

2025-02-12 12:35:29 +00:00

test_sni_router.py

switch from localtest.me to local.neon.build (#10714)

2025-02-07 12:25:16 +00:00

test_storage_controller.py

tests: parametrize test_graceful_cluster_restart on AZ count (#10427)

2025-02-11 20:09:41 +00:00

test_storage_scrubber.py

tests: make Workload more determinstic (#10741)

2025-02-12 12:35:29 +00:00

test_subscriber_branching.py

Fix logical_replication_sync test fixture (#10531)

2025-02-03 12:44:47 +00:00

test_subscriber_restart.py

Enable sanitizers for postgres v17 (#10401)

2025-02-06 12:53:43 +00:00

test_subxacts.py

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

2024-11-27 12:12:21 +00:00

test_tenant_conf.py

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

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

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)

2024-12-02 10:26:15 +00:00

test_tenant_relocation.py

test_runner: improve wait_until (#9936)

2024-12-02 10:26:15 +00:00

test_tenant_size.py

test_runner: improve wait_until (#9936)

2024-12-02 10:26:15 +00:00

test_tenant_tasks.py

test_runner: improve wait_until (#9936)

2024-12-02 10:26:15 +00:00

test_tenants_with_remote_storage.py

test_runner: improve wait_until (#9936)

2024-12-02 10:26:15 +00:00

test_tenants.py

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

2025-01-16 18:51:56 +00:00

test_threshold_based_eviction.py

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

2024-12-11 22:21:42 +00:00

test_timeline_archive.py

Change timeline_offloading setting default to true (#10760)

2025-02-11 16:36:54 +00:00

test_timeline_delete.py

test_runner: improve wait_until (#9936)

2024-12-02 10:26:15 +00:00

test_timeline_detach_ancestor.py

Increase reconciler timeout after shard split (#10490)

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

test_timeline_gc_blocking.py

test_runner: improve wait_until (#9936)

2024-12-02 10:26:15 +00:00

test_timeline_size.py

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

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

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

2024-10-28 17:47:15 -05:00

test_vm_bits.py

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

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

test_vm_truncate.py

Correctly truncate VM (#9342)

2024-11-14 17:19:13 +02:00

test_wal_acceptor_async.py

Implement a second HTTP server within compute_ctl (#10574)

2025-02-11 18:02:22 +00:00

test_wal_acceptor.py

safekeeper: add membership configuration switch endpoint (#10241)

2025-01-15 14:16:04 +00:00

test_wal_receiver.py

test_runner: improve wait_until (#9936)

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test_wal_restore.py

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test_walredo_not_left_behind_on_detach.py

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