John Spray 923974d4da safekeeper: don't un-evict timelines during snapshot API handler (#9428) ...

## Problem

When we use pull_timeline API on an evicted timeline, it gets downloaded
to serve the snapshot API request. That means that to evacuate all the
timelines from a node, the node needs enough disk space to download
partial segments from all timelines, which may not be physically the
case.

Closes: #8833 

## Summary of changes

- Add a "try" variant of acquiring a residence guard, that returns None
if the timeline is offloaded
- During snapshot API handler, take a different code path if the
timeline isn't resident, where we just read the checkpoint and don't try
to read any segments.

2024-10-28 08:47:12 +00:00

..

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

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test_auth.py

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test_backpressure.py

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test_basebackup_error.py

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test_branching.py

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test_broken_timeline.py

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test_build_info_metric.py

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test_change_pageserver.py

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test_clog_truncate.py

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test_close_fds.py

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test_combocid.py

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test_compaction.py

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test_compatibility.py

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test_compute_catalog.py

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test_config.py

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test_crafted_wal_end.py

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test_createdropdb.py

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test_createuser.py

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test_ddl_forwarding.py

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test_disk_usage_eviction.py

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test_download_extensions.py

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test_endpoint_crash.py

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test_explain_with_lfc_stats.py

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test_extensions.py

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test_fsm_truncate.py

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test_fullbackup.py

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test_import.py

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test_ingestion_layer_size.py

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test_installed_extensions.py

Add /installed_extensions endpoint to collect statistics about extension usage. (#8917)

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test_large_schema.py

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test_layer_bloating.py

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test_layers_from_future.py

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test_lfc_resize.py

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test_local_file_cache.py

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test_logging.py

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test_logical_replication.py

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test_lsn_mapping.py

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test_migrations.py

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test_multixact.py

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test_neon_cli.py

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test_neon_extension.py

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test_neon_local_cli.py

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test_neon_superuser.py

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test_next_xid.py

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test_normal_work.py

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test_oid_overflow.py

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test_ondemand_download.py

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test_ondemand_slru_download.py

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test_pageserver_api.py

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test_pageserver_catchup.py

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test_pageserver_crash_consistency.py

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test_pageserver_generations.py

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test_pageserver_getpage_throttle.py

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test_pageserver_layer_rolling.py

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test_pageserver_metric_collection.py

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test_pageserver_reconnect.py

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test_pageserver_restart.py

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test_pageserver_restarts_under_workload.py

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test_pageserver_secondary.py

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test_parallel_copy.py

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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_replication.py

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test_postgres_version.py

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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

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test_readonly_node.py

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test_recovery.py

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test_remote_storage.py

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test_replica_start.py

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test_role_grants.py

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test_s3_restore.py

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test_setup.py

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test_sharding.py

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test_sni_router.py

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test_storage_controller.py

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test_storage_scrubber.py

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test_subscriber_restart.py

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test_subxacts.py

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test_tenant_conf.py

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test_tenant_delete.py

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test_tenant_detach.py

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test_tenant_relocation.py

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test_tenant_size.py

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test_tenant_tasks.py

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test_tenants_with_remote_storage.py

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test_tenants.py

tests: stabilize test_timelines_parallel_endpoints (#9413)

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test_threshold_based_eviction.py

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test_timeline_archive.py

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test_timeline_delete.py

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test_timeline_detach_ancestor.py

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test_timeline_gc_blocking.py

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test_timeline_size.py

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test_truncate.py

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test_vm_bits.py

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test_wal_acceptor_async.py

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test_wal_acceptor.py

safekeeper: don't un-evict timelines during snapshot API handler (#9428)

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test_wal_receiver.py

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test_wal_restore.py

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