SERVER-126021 Fix handling of duplicate fields in flat_bson (#53258)

GitOrigin-RevId: ef888a6df901622004aeb4b7362e007b8c4299da
2026-05-06 00:22:30 -04:00 · 2026-05-06 00:22:30 -04:00 · e55c99fa49
commit e55c99fa49
parent 2884bcf912
17 changed files with 53 additions and 13340 deletions
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@ -1,11 +0,0 @@
-# All backports must be approved by the server release team
-* @10gen/server-release
-
-# Exclude some test files and READMEs from the backport approvals
-/etc/backports_required_for_multiversion_tests.yml
-/etc/*.suppressions
-/README.md
-**/README.md
-
-# Exclude all the tests under "jstests" directories from backport approvals
-**/jstests/**/*
--- a/copy.bara.sky
+++ b/copy.bara.sky
@ -1,33 +0,0 @@
-# This configuration is for migrating code from one Git repository to another using Copybara.
-# It selectively copies content, excluding specific paths and preserving authorship.
-
-# To test locally
-# sourceUrl = "/path/to/source"
-# destinationUrl = "/path/to/dest"
-
-sourceUrl = "https://github.com/10gen/mongo.git"
-destinationUrl = "https://github.com/mongodb/mongo.git"
-
-core.workflow(
-    name = "default",
-    origin = git.origin(
-        url = sourceUrl,
-        ref = "v6.0",
-    ),
-    destination = git.destination(
-        url = destinationUrl,
-        fetch = "v6.0",
-        push = "v6.0",
-    ),
-    # Change path to the folder you want to publish publicly
-    origin_files = glob(["**"], exclude = ["src/mongo/db/modules/**"]),
-    authoring = authoring.pass_thru("MongoDB <mongodb@mongodb.com>"),
-    mode = "ITERATIVE",
-    transformations = [
-        # (^.*?) - matches the first line (without the newline char)
-        # \n - matches the first newline (or nothing at all if there is no newline). If there is no match then nothing happens
-        # ((\n|.)*) - matches everything after
-        # Overall, this copies only the first line of the commit rather than the body
-        metadata.scrubber("(^.*?)\n((\n|.)*)", replacement = "$1"),
-    ],
-)
--- a/copy.bara.staging.sky
+++ b/copy.bara.staging.sky
@ -1,31 +0,0 @@
-# This configuration is for migrating code from one Git repository to another using Copybara.
-# It selectively copies content, excluding specific paths and preserving authorship.
-sourceUrl = "https://github.com/10gen/mongo.git"
-destinationUrl = "https://github.com/10gen/mongo-copybara.git"
-
-core.workflow(
-    name = "default",
-    origin = git.origin(
-        url = sourceUrl,
-        ref = "v6.0",
-    ),
-    destination = git.destination(
-        url = destinationUrl,
-        fetch = "v6.0",
-        push = "v6.0",
-    ),
-    # Change path to the folder you want to publish publicly
-    origin_files = glob(["**"], exclude=["src/mongo/db/modules/**"]),
-
-    authoring = authoring.pass_thru("MongoDB <mongodb@mongodb.com>"),
-
-    mode = "ITERATIVE",
-    # Change the path here to the folder you want to publish publicly
-    transformations = [
-        # (^.*?) - matches the first line (without the newline char)
-        # \n - matches the first newline (or nothing at all if there is no newline). If there is no match then nothing happens
-        # ((\n|.)*) - matches everything after
-        # Overall, this copies only the first line of the commit rather than the body
-        metadata.scrubber("(^.*?)\n((\n|.)*)", replacement = "$1"),
-    ],
-)
--- a/docs/evergreen-testing/task_generation.md
+++ b/docs/evergreen-testing/task_generation.md
@ -15,7 +15,7 @@ for details on how it works.

 In order to generate a task, we typically create a placeholder task. By convention the name of
 these tasks should end in "_gen". Most of the time, generated tasks should inherit the
-[gen_task_template](https://github.com/10gen/mongo/blob/31864e3866ce9cc54c08463019846ded2ad9e6e5/etc/evergreen_yml_components/definitions.yml#L99-L107)
+[gen_task_template](https://github.com/mongodb/mongo/blob/31864e3866ce9cc54c08463019846ded2ad9e6e5/etc/evergreen_yml_components/definitions.yml#L99-L107)
 which configures the required dependencies.

 The placeholder tasks needs to have the "generate resmoke tasks" function as one of its `commands`.
--- a/etc/evergreen_yml_components/definitions.yml
+++ b/etc/evergreen_yml_components/definitions.yml
--- a/etc/evergreen_yml_components/tasks/misc_tasks.yml
+++ b/etc/evergreen_yml_components/tasks/misc_tasks.yml
--- a/etc/evergreen_yml_components/variants/atlas.yml
+++ b/etc/evergreen_yml_components/variants/atlas.yml
@ -1,80 +0,0 @@
-# Build variants corresponding to Atlas's OS.
-
-buildvariants:
- name: enterprise-rhel-70-64-bit
-  display_name: "Enterprise RHEL 7.0"
-  cron: "0 4 * * *" # From the ${project_nightly_cron} parameter.
-  run_on:
-  - rhel70-small
-  expansions:
-    additional_package_targets: archive-mongocryptd archive-mongocryptd-debug archive-mh archive-mh-debug
-    push_path: linux
-    push_bucket: downloads.10gen.com
-    push_name: linux
-    push_arch: x86_64-enterprise-rhel70
-    compile_flags: --ssl MONGO_DISTMOD=rhel70 -j$(grep -c ^processor /proc/cpuinfo) --variables-files=etc/scons/mongodbtoolchain_v3_gcc.vars
-    crypt_task_compile_flags: SHLINKFLAGS_EXTRA="-Wl,-Bsymbolic -Wl,--no-gnu-unique" CCFLAGS="-fno-gnu-unique"
-    multiversion_platform: rhel70
-    multiversion_edition: enterprise
-    has_packages: true
-    packager_script: packager_enterprise.py
-    packager_arch: x86_64
-    packager_distro: rhel70
-    repo_edition: enterprise
-    scons_cache_scope: shared
-    test_flags: --excludeWithAnyTags=requires_latch_analyzer
-  tasks:
-  - name: compile_test_and_package_serial_TG
-    distros:
-    - rhel70-large
-  - name: compile_test_and_package_parallel_unittest_stream_TG
-    distros:
-    - rhel70-large
-  - name: compile_build_tools_next_TG
-    distros:
-    - rhel70-large
-  - name: .aggfuzzer
-  - name: audit
-  - name: auth_audit_gen
-  - name: auth_gen
-  - name: causally_consistent_jscore_txns_passthrough
-  - name: config_fuzzer_concurrency
-  - name: config_fuzzer_simulate_crash_concurrency_replication
-    distros:
-    - rhel70-large
-  - name: config_fuzzer_concurrency_replication
-    distros:
-    - rhel70-large
-  - name: config_fuzzer_jsCore
-  - name: config_fuzzer_replica_sets_jscore_passthrough
-    distros:
-    - rhel70-large
-  - name: .encrypt !.sharding !.replica_sets !.aggregation !.jscore
-  - name: external_auth
-  - name: external_auth_aws
-  - name: .jscore .common !.decimal !.sharding
-  - name: jsCore_txns_large_txns_format
-  - name: .jstestfuzz .common
-  - name: libunwind_tests
-  - name: .logical_session_cache .one_sec
-  - name: .ocsp
-  - name: replica_sets_auth_gen
-  - name: replica_sets_jscore_passthrough
-  - name: .replica_sets .multi_oplog
-  - name: sasl
-  - name: search
-  - name: search_auth
-  - name: search_pinned_connections_auth
-  - name: search_ssl
-  - name: sharding_auth_audit_gen
-  - name: sharding_auth_gen
-  - name: snmp
-  - name: .crypt
-  - name: .publish_crypt
-  - name: unittest_shell_hang_analyzer_gen
-  - name: vector_search
-  - name: vector_search_auth
-  - name: vector_search_ssl
-  - name: selinux_rhel7_enterprise
-  - name: .publish
-  - name: generate_buildid_to_debug_symbols_mapping
--- a/etc/evergreen_yml_components/variants/ibm.yml
+++ b/etc/evergreen_yml_components/variants/ibm.yml
@ -1,216 +0,0 @@
-# IBM build variants.
-
-buildvariants:
- name: enterprise-rhel-81-ppc64le
-  display_name: Enterprise RHEL 8.9 PPC64LE
-  run_on:
-  - rhel8-power-small
-  cron: "0 4 * * 0" # From the ${project_weekly_cron} parameter
-  stepback: false
-  expansions:
-    additional_package_targets: archive-mongocryptd archive-mongocryptd-debug
-    # We need to compensate for SMT8 setting the cpu count very high and lower the amount of parallelism down
-    compile_flags: --ssl MONGO_DISTMOD=rhel81 -j$(echo "$(grep -c processor /proc/cpuinfo)/2" | bc) --variables-files=etc/scons/mongodbtoolchain_v3_gcc.vars
-    crypt_task_compile_flags: SHLINKFLAGS_EXTRA="-Wl,-Bsymbolic -Wl,--no-gnu-unique" CCFLAGS="-fno-gnu-unique"
-    resmoke_jobs_factor: 0.25
-    has_packages: true
-    packager_script: packager_enterprise.py
-    packager_arch: ppc64le
-    packager_distro: rhel81
-    push_path: linux
-    push_bucket: downloads.10gen.com
-    push_name: linux
-    push_arch: ppc64le-enterprise-rhel81
-    repo_edition: enterprise
-    multiversion_platform: rhel81
-    multiversion_architecture: ppc64le
-    multiversion_edition: enterprise
-    test_flags: >-
-      --excludeWithAnyTags=requires_increased_memlock_limits,requires_latch_analyzer,ppc64le_incompatible
-    timeout_secs: 7200 # 2 hours idle timeout
-    exec_timeout_secs: 43200 # 12 hours exec timeout
-  tasks:
-  - name: compile_test_and_package_serial_TG
-    distros:
-    - rhel8-power-large
-  - name: compile_test_and_package_parallel_unittest_stream_TG
-    distros:
-    - rhel8-power-large
-  - name: compile_integration_and_test_no_audit_parallel_stream_TG
-    distros:
-    - rhel8-power-large
-  - name: .aggregation .common
-  - name: audit
-  - name: .auth !.multiversion !.jscore
-  - name: .misc_js
-  - name: .encrypt
-  - name: .jscore .common !.auth
-  - name: .read_write_concern
-  - name: replica_sets_gen
-  - name: .replica_sets .common
-  - name: sasl
-  - name: .sharding .jscore !.wo_snapshot !.multi_stmt
-  - name: .sharding .common !.multiversion
-  - name: snmp
-  - name: .crypt
-  - name: .publish_crypt
-  - name: .publish
-  - name: generate_buildid_to_debug_symbols_mapping
-
- name: enterprise-rhel-71-ppc64le
-  display_name: Enterprise RHEL 7.9 PPC64LE
-  run_on:
-  - rhel7-power-small
-  cron: "0 4 * * 0" # From the ${project_weekly_cron} parameter
-  stepback: false
-  expansions:
-    additional_package_targets: archive-mongocryptd archive-mongocryptd-debug
-    # We need to compensate for SMT8 setting the cpu count very high and lower the amount of parallelism down
-    compile_flags: --ssl MONGO_DISTMOD=rhel71 -j$(echo "$(grep -c processor /proc/cpuinfo)/2" | bc) --variables-files=etc/scons/mongodbtoolchain_stable_gcc.vars
-    crypt_task_compile_flags: SHLINKFLAGS_EXTRA="-Wl,-Bsymbolic -Wl,--no-gnu-unique" CCFLAGS="-fno-gnu-unique"
-    resmoke_jobs_factor: 0.25
-    has_packages: true
-    packager_script: packager_enterprise.py
-    packager_arch: ppc64le
-    packager_distro: rhel71
-    push_path: linux
-    push_bucket: downloads.10gen.com
-    push_name: linux
-    push_arch: ppc64le-enterprise-rhel71
-    repo_edition: enterprise
-    multiversion_platform: rhel71
-    multiversion_architecture: ppc64le
-    multiversion_edition: enterprise
-    test_flags: >-
-      --excludeWithAnyTags=requires_increased_memlock_limits,requires_latch_analyzer,ppc64le_incompatible
-    timeout_secs: 7200 # 2 hours idle timeout
-    exec_timeout_secs: 43200 # 12 hours exec timeout
-  tasks:
-  - name: compile_test_and_package_serial_TG
-    distros:
-    - rhel7-power-large
-  - name: compile_test_and_package_parallel_unittest_stream_TG
-    distros:
-    - rhel7-power-large
-  - name: compile_integration_and_test_no_audit_parallel_stream_TG
-    distros:
-    - rhel7-power-large
-  - name: .aggregation .common
-  - name: audit
-  - name: .auth !.multiversion !.jscore
-  - name: .misc_js
-  - name: .encrypt
-  - name: .jscore .common !.auth
-  - name: .read_write_concern
-  - name: replica_sets_gen
-  - name: .replica_sets .common
-  - name: sasl
-  - name: .sharding .jscore !.wo_snapshot !.multi_stmt
-  - name: .sharding .common !.multiversion
-  - name: snmp
-  - name: .crypt
-  - name: .publish_crypt
-  - name: .publish
-  - name: generate_buildid_to_debug_symbols_mapping
-
- name: enterprise-rhel-72-s390x
-  display_name: Enterprise RHEL 7.9 s390x
-  run_on:
-  - rhel7-zseries-small
-  cron: "0 4 * * 0"
-  stepback: false
-  expansions:
-    additional_package_targets: archive-mongocryptd archive-mongocryptd-debug
-    release_buid: true
-    compile_flags: --ssl MONGO_DISTMOD=rhel72 -j3 --variables-files=etc/scons/mongodbtoolchain_v3_gcc.vars
-    crypt_task_compile_flags: SHLINKFLAGS_EXTRA="-Wl,-Bsymbolic -Wl,--no-gnu-unique" CCFLAGS="-fno-gnu-unique"
-    resmoke_jobs_max: 2
-    has_packages: true
-    packager_script: packager_enterprise.py
-    packager_arch: s390x
-    packager_distro: rhel72
-    push_path: linux
-    push_bucket: downloads.10gen.com
-    push_name: linux
-    push_arch: s390x-enterprise-rhel72
-    repo_edition: enterprise
-    multiversion_platform: rhel72
-    multiversion_architecture: s390x
-    multiversion_edition: enterprise
-    test_flags: >-
-      --excludeWithAnyTags=incompatible_with_s390x,requires_increased_memlock_limits,requires_latch_analyzer
-  tasks:
-  - name: small_compile_test_and_package_serial_TG
-    distros:
-    - rhel7-zseries-large
-  - name: compile_test_and_package_parallel_unittest_stream_TG
-    distros:
-    - rhel7-zseries-large
-  - name: compile_integration_and_test_no_audit_parallel_stream_TG
-    distros:
-    - rhel7-zseries-large
-  - name: .aggregation .common
-  - name: audit
-  - name: .auth !.multiversion !.jscore
-  - name: .misc_js
-  - name: .encrypt
-  - name: .jscore .common !.auth
-  - name: .read_write_concern
-  - name: replica_sets_gen
-  - name: .replica_sets .common
-  - name: sasl
-  - name: .sharding .jscore !.wo_snapshot !.multi_stmt
-  - name: .sharding .common !.multiversion
-  - name: snmp
-  - name: .crypt
-  - name: .publish_crypt
-  - name: .publish
-  - name: generate_buildid_to_debug_symbols_mapping
-
- name: enterprise-rhel-83-s390x
-  display_name: Enterprise RHEL 8.3 s390x
-  run_on:
-  - rhel8-zseries-large-legacy
-  cron: "0 4 * * 0"
-  stepback: false
-  expansions:
-    additional_package_targets: archive-mongocryptd archive-mongocryptd-debug
-    release_buid: true
-    compile_flags: --ssl MONGO_DISTMOD=rhel83 -j16 --variables-files=etc/scons/mongodbtoolchain_v3_gcc.vars
-    crypt_task_compile_flags: SHLINKFLAGS_EXTRA="-Wl,-Bsymbolic -Wl,--no-gnu-unique" CCFLAGS="-fno-gnu-unique"
-    resmoke_jobs_max: 2
-    has_packages: true
-    packager_script: packager_enterprise.py
-    packager_arch: s390x
-    packager_distro: rhel83
-    push_path: linux
-    push_bucket: downloads.10gen.com
-    push_name: linux
-    push_arch: s390x-enterprise-rhel83
-    repo_edition: enterprise
-    multiversion_platform: rhel83
-    multiversion_architecture: s390x
-    multiversion_edition: enterprise
-    exec_timeout_secs: 86400 # 24 hours exec timeout
-    test_flags: >-
-      --excludeWithAnyTags=incompatible_with_s390x,requires_increased_memlock_limits,requires_latch_analyzer
-  tasks:
-  - name: compile_test_and_package_serial_TG
-  - name: compile_integration_and_test_no_audit_parallel_stream_TG
-  - name: .aggregation .common
-  - name: audit
-  - name: .auth !.multiversion !.jscore
-  - name: .misc_js
-  - name: .encrypt
-  - name: .jscore .common !.auth
-  - name: .read_write_concern
-  - name: replica_sets_gen
-  - name: .replica_sets .common
-  - name: sasl
-  - name: .sharding .jscore !.wo_snapshot !.multi_stmt
-  - name: .sharding .common !.multiversion
-  - name: snmp
-  - name: .crypt
-  - name: .publish_crypt
-  - name: .publish
-  - name: generate_buildid_to_debug_symbols_mapping
--- a/etc/evergreen_yml_components/variants/in_memory.yml
+++ b/etc/evergreen_yml_components/variants/in_memory.yml
@ -1,115 +0,0 @@
-# InMemory build variants that need to be run on LTS but not Rapid releases.
-
-buildvariants:
- name: enterprise-rhel-8-64-bit-inmem
-  display_name: Enterprise RHEL 8 (inMemory)
-  cron: "0 4 * * *" # From the ${project_nightly_cron} parameter.
-  run_on:
-  - rhel80-small
-  expansions:
-    additional_package_targets: archive-mongocryptd archive-mongocryptd-debug
-    test_flags: --storageEngine=inMemory --excludeWithAnyTags=requires_persistence,requires_journaling
-    compile_flags: --ssl MONGO_DISTMOD=rhel80 -j$(grep -c ^processor /proc/cpuinfo) --variables-files=etc/scons/mongodbtoolchain_v3_gcc.vars --use-diagnostic-latches=on
-    multiversion_platform: rhel80
-    multiversion_platform_50_or_later: rhel8
-    multiversion_edition: enterprise
-    scons_cache_scope: shared
-    large_distro_name: rhel80-large
-  tasks:
-  - name: compile_test_and_package_serial_TG
-    distros:
-    - rhel80-xlarge
-  - name: compile_test_and_package_parallel_unittest_stream_TG
-    distros:
-    - rhel80-xlarge
-  - name: compile_integration_and_test_no_audit_parallel_stream_TG
-    distros:
-    - rhel80-xlarge
-  - name: .aggfuzzer .common
-  - name: .aggregation !.unwind !.encrypt
-  - name: audit
-  - name: .auth !.multiversion
-  - name: .causally_consistent !.wo_snapshot !.durable_history
-  - name: .change_streams !.secondary_reads
-  - name: .change_stream_fuzzer
-  - name: .misc_js
-  - name: .concurrency !.ubsan !.no_txns !.debug_only !.kill_terminate
-    distros:
-    - rhel80-medium  # Some workloads require a lot of memory, use a bigger machine for this suite.
-  - name: initial_sync_fuzzer_gen
-  - name: .jscore .common !.decimal
-  - name: jsCore_txns_large_txns_format
-  - name: .jstestfuzz !.initsync
-  - name: .logical_session_cache
-  - name: .multi_shard .common
-  - name: multi_stmt_txn_jscore_passthrough_with_migration_gen
-  - name: .read_write_concern !.durable_history
-  - name: replica_sets_gen
-  - name: .replica_sets .common
-  - name: .replica_sets .multi_oplog
-  - name: replica_sets_multi_stmt_txn_jscore_passthrough
-  - name: replica_sets_multi_stmt_txn_stepdown_jscore_passthrough_gen
-    distros:
-    - rhel80-medium
-  - name: .resharding_fuzzer
-  - name: .retry
-  - name: rollback_fuzzer_gen
-  - name: sasl
-  - name: secondary_reads_passthrough_gen
-  - name: session_jscore_passthrough
-  - name: sharded_multi_stmt_txn_jscore_passthrough
-    distros:
-    - rhel80-medium
-  - name: .sharding .jscore !.wo_snapshot !.multi_stmt
-  - name: .sharding .common !.multiversion !.csrs
-  - name: snmp
-  - name: .ssl
-  - name: .updatefuzzer
-
- name: enterprise-windows-inmem
-  display_name: Enterprise Windows (inMemory)
-  cron: "0 4 * * *" # From the ${project_nightly_cron} parameter.
-  run_on:
-  - windows-vsCurrent-small
-  expansions:
-    additional_package_targets: archive-mongocryptd archive-mongocryptd-debug msi
-    exe: ".exe"
-    content_type: application/zip
-    compile_flags: --ssl MONGO_DISTMOD=windows CPPPATH="c:/sasl/include c:/snmp/include" LIBPATH="c:/sasl/lib c:/snmp/lib" -j$(bc <<< "$(grep -c '^processor' /proc/cpuinfo) / 1.5") --win-version-min=win10 --use-diagnostic-latches=on
-    num_scons_link_jobs_available: 0.25
-    python: '/cygdrive/c/python/python37/python.exe'
-    test_flags: --storageEngine=inMemory --excludeWithAnyTags=requires_persistence,requires_journaling,incompatible_with_windows_tls
-    ext: zip
-    scons_cache_scope: shared
-    multiversion_platform: windows
-    multiversion_edition: enterprise
-    large_distro_name: windows-vsCurrent-large
-  tasks:
-  - name: compile_test_and_package_serial_TG
-    distros:
-    - windows-vsCurrent-large
-  - name: compile_test_and_package_parallel_unittest_stream_TG
-    distros:
-    - windows-vsCurrent-large
-  - name: .aggfuzzer .common
-  - name: audit
-  - name: auth_audit_gen
-  - name: causally_consistent_jscore_txns_passthrough
-  - name: .concurrency .common
-    distros:
-    - windows-vsCurrent-large
-  - name: concurrency_replication_causal_consistency_gen
-  - name: initial_sync_fuzzer_gen
-  - name: .jscore .common !.decimal !.sharding
-  - name: .jstestfuzz .common !.flow_control  # Flow control jstestfuzz take longer.
-  - name: .read_write_concern .linearize !.durable_history
-  - name: replica_sets_auth_gen
-  - name: replica_sets_jscore_passthrough_gen
-  - name: replica_sets_multi_stmt_txn_jscore_passthrough
-  - name: sasl
-  - name: .sharding .txns
-  - name: sharding_auth_gen
-  - name: sharding_auth_audit_gen
-  - name: snmp
-  - name: .ssl
-  - name: .resharding_fuzzer
--- a/etc/evergreen_yml_components/variants/misc_release.yml
+++ b/etc/evergreen_yml_components/variants/misc_release.yml
--- a/etc/evergreen_yml_components/variants/ninja.yml
+++ b/etc/evergreen_yml_components/variants/ninja.yml
@ -1,85 +0,0 @@
-buildvariants:
-
- name: enterprise-windows-ninja
-  display_name: "Ninja Build: Enterprise Windows"
-  cron: "0 4 * * 0" # Run once a week to ensure no failures introduced to ninja builds
-  expansions:
-    compile_flags: --ssl MONGO_DISTMOD=windows CPPPATH="c:/sasl/include c:/snmp/include" LIBPATH="c:/sasl/lib c:/snmp/lib" -j$(bc <<< "$(grep -c '^processor' /proc/cpuinfo) / 1.5")  --win-version-min=win10
-  tasks:
-  - name: compile_ninja_next_TG
-    distros:
-    - windows-vsCurrent-large
-  - name: compile_ninja_TG
-    distros:
-    - windows-vsCurrent-large
-
- name: macos-enterprise-ninja
-  display_name: "Ninja Build: macOS Enterprise"
-  cron: "0 4 * * 0" # Run once a week to ensure no failures introduced to ninja builds
-  run_on:
-  - macos-11
-  expansions:
-    compile_env: DEVELOPER_DIR=/Applications/Xcode13.app
-    compile_flags: --ssl -j$(sysctl -n hw.logicalcpu) --libc++ --variables-files=etc/scons/xcode_macosx.vars
-  tasks:
-  - name: compile_ninja_next_TG
-  - name: compile_ninja_TG
-
- name: ubuntu1804-ninja-build-profiles
-  display_name: "Ninja Build Profiles: Ubuntu 18.04"
-  cron: "0 4 * * 0" # # Run once a week to ensure no failures introduced to build profiles
-  run_on:
-  - ubuntu1804-small
-  stepback: false
-  expansions:
-    compile_flags: --ssl --ocsp-stapling=off MONGO_DISTMOD=ubuntu1804 -j$(grep -c ^processor /proc/cpuinfo) --modules=
-    test_flags: --enableEnterpriseTests=off
-    repo_edition: enterprise
-    has_packages: false
-  tasks:
-  - name: compile_ninja_default_profile_TG
-    distros:
-    - ubuntu1804-xlarge
-  - name: compile_ninja_opt_profile_TG
-    distros:
-    - ubuntu1804-xlarge
-  - name: compile_ninja_san_profile_TG
-    distros:
-    - ubuntu1804-xlarge
-  - name: compile_ninja_fast_profile_TG
-    distros:
-    - ubuntu1804-xlarge
-
- name: enterprise-rhel-8-64-bit-dynamic-required-ninja
-  display_name: "Ninja Build: Enterprise RHEL 8"
-  cron: "0 4 * * 0" # Run once a week to ensure no failures introduced to ninja builds
-  run_on:
-  - rhel80-small
-  expansions:
-    compile_flags: --ssl MONGO_DISTMOD=rhel80 -j$(grep -c ^processor /proc/cpuinfo) --variables-files=etc/scons/mongodbtoolchain_v3_gcc.vars --link-model=dynamic
-    has_packages: false
-  tasks:
-  - name: compile_ninja_next_TG
-    distros:
-    - rhel80-xlarge
-  - name: compile_ninja_TG
-    distros:
-    - rhel80-xlarge
-
- name: enterprise-rhel8-ninja
-  display_name: "Ninja Build: RHEL 8"
-  cron: "0 4 * * 0" # Run once a week to ensure no failures introduced to ninja builds
-  run_on:
-  - rhel80-small
-  stepback: false
-  expansions:
-    compile_flags: --ssl --ocsp-stapling=off MONGO_DISTMOD=rhel80 -j$(grep -c ^processor /proc/cpuinfo) --variables-files=etc/scons/mongodbtoolchain_v3_gcc.vars --link-model=dynamic
-    repo_edition: enterprise
-    has_packages: false
-  tasks:
-  - name: compile_ninja_next_TG
-    distros:
-    - rhel80-build
-  - name: compile_ninja_TG
-    distros:
-    - rhel80-build
--- a/etc/evergreen_yml_components/variants/sanitizer.yml
+++ b/etc/evergreen_yml_components/variants/sanitizer.yml
@ -1,168 +0,0 @@
-# Build variant definitions for vanilla sanitizers that can be used across
-# release and dev environments.
-
-buildvariants:
-
- name: rhel8-asan
-  display_name: ~ ASAN RHEL 8
-  cron: "0 4 * * *" # From the ${project_nightly_cron} parameter.
-  run_on:
-    - rhel80-build
-  stepback: true
-  expansions:
-    lang_environment: LANG=C
-    san_options: LSAN_OPTIONS="suppressions=etc/lsan.suppressions:report_objects=1:external_symbolizer_path=/opt/mongodbtoolchain/v3/bin/llvm-symbolizer" ASAN_OPTIONS="detect_leaks=1:check_initialization_order=true:strict_init_order=true:abort_on_error=1:disable_coredump=0:handle_abort=1:external_symbolizer_path=/opt/mongodbtoolchain/v3/bin/llvm-symbolizer"
-    compile_flags: --variables-files=etc/scons/mongodbtoolchain_v3_clang.vars --opt=on --allocator=system --sanitize=address --ssl --ocsp-stapling=off -j$(grep -c ^processor /proc/cpuinfo) --use-diagnostic-latches=on
-    multiversion_platform: rhel80
-    multiversion_platform_50_or_later: rhel8
-    multiversion_edition: enterprise
-    resmoke_jobs_factor: 0.3  # Avoid starting too many mongod's under ASAN build.
-    hang_analyzer_dump_core: false
-    scons_cache_scope: shared
-    test_flags: --excludeWithAnyTags=requires_fast_memory,requires_ocsp_stapling
-    separate_debug: off
-  tasks:
-    - name: compile_test_and_package_serial_TG
-    - name: compile_test_and_package_parallel_unittest_stream_TG
-    - name: .aggfuzzer .common
-    - name: .jstestfuzz !.initsync
-
- name: rhel8-debug-asan
-  display_name: ~ ASAN Enterprise RHEL 8 DEBUG
-  cron: "0 4 * * *" # From the ${project_nightly_cron} parameter.
-  run_on:
-  - rhel80-build
-  stepback: false
-  expansions:
-    additional_package_targets: archive-mongocryptd archive-mongocryptd-debug
-    lang_environment: LANG=C
-    # If you add anything to san_options, make sure the appropriate changes are
-    # also made to SConstruct.
-    san_options: LSAN_OPTIONS="suppressions=etc/lsan.suppressions:report_objects=1:external_symbolizer_path=/opt/mongodbtoolchain/v3/bin/llvm-symbolizer" ASAN_OPTIONS="detect_leaks=1:check_initialization_order=true:strict_init_order=true:abort_on_error=1:disable_coredump=0:handle_abort=1:external_symbolizer_path=/opt/mongodbtoolchain/v3/bin/llvm-symbolizer"
-    compile_flags: --variables-files=etc/scons/mongodbtoolchain_v3_clang.vars --dbg=on --opt=on --allocator=system --sanitize=address --ssl --ocsp-stapling=off -j$(grep -c ^processor /proc/cpuinfo)
-    test_flags: --excludeWithAnyTags=requires_fast_memory,requires_ocsp_stapling,requires_increased_memlock_limits,requires_latch_analyzer
-    multiversion_platform: rhel80
-    multiversion_platform_50_or_later: rhel8
-    multiversion_edition: enterprise
-    resmoke_jobs_factor: 0.3  # Avoid starting too many mongod's under ASAN build.
-    hang_analyzer_dump_core: false
-    scons_cache_scope: shared
-    exec_timeout_secs: 14400 # 3 hour timeout
-    separate_debug: off
-    large_distro_name: rhel80-build
-  tasks:
-  - name: compile_test_and_package_serial_TG
-  - name: compile_test_and_package_parallel_unittest_stream_TG
-  - name: compile_benchmarks
-  - name: compile_integration_and_test_parallel_stream_TG
-  - name: .aggregation
-  - name: .auth
-  - name: audit
-  - name: .benchmarks
-  - name: .causally_consistent !.wo_snapshot
-  - name: .change_streams
-  - name: .misc_js
-  - name: .concurrency !.ubsan !.no_txns !.kill_terminate
-  - name: .encrypt
-  - name: external_auth
-  - name: external_auth_aws
-  - name: initial_sync_fuzzer_gen
-  - name: .jscore .common
-  - name: jsCore_minimum_batch_size
-  - name: jsCore_txns_large_txns_format
-  - name: json_schema
-  - name: .logical_session_cache
-  - name: .multi_shard .common
-  - name: multiversion_gen
-  - name: .multiversion_fuzzer
-  - name: .multiversion_passthrough
-  - name: .query_fuzzer
-  - name: .random_multiversion_ds
-  - name: .read_write_concern
-  - name: replica_sets_large_txns_format_gen
-  - name: replica_sets_large_txns_format_jscore_passthrough
-  - name: .replica_sets !.multi_oplog
-  - name: .resharding_fuzzer
-  - name: .retry
-  - name: .read_only
-  - name: .rollbackfuzzer
-  - name: .updatefuzzer
-  - name: sasl
-  - name: secondary_reads_passthrough_gen
-  - name: session_jscore_passthrough
-  - name: .sharding .jscore !.wo_snapshot
-  - name: .sharding .common !.csrs
-  - name: snmp
-  - name: .watchdog
-  - name: .serverless
-  - name: unittest_shell_hang_analyzer_gen
-  - name: .updatefuzzer
-  - name: server_discovery_and_monitoring_json_test_TG
-  - name: server_selection_json_test_TG
-
- name: rhel8-debug-ubsan
-  display_name: ~ UBSAN Enterprise RHEL 8 DEBUG
-  cron: "0 4 * * *" # From the ${project_nightly_cron} parameter.
-  run_on:
-  - rhel80-build
-  stepback: false
-  expansions:
-    additional_package_targets: archive-mongocryptd archive-mongocryptd-debug
-    lang_environment: LANG=C
-    # If you add anything to san_options, make sure the appropriate changes are
-    # also made to SConstruct.
-    san_options: UBSAN_OPTIONS="print_stacktrace=1:external_symbolizer_path=/opt/mongodbtoolchain/v3/bin/llvm-symbolizer"
-    compile_flags: --variables-files=etc/scons/mongodbtoolchain_v3_clang.vars --dbg=on --opt=on --sanitize=undefined --ssl --ocsp-stapling=off -j$(grep -c ^processor /proc/cpuinfo) --use-diagnostic-latches=on
-    test_flags: --excludeWithAnyTags=requires_ocsp_stapling,requires_increased_memlock_limits
-    multiversion_platform: rhel80
-    multiversion_platform_50_or_later: rhel8
-    multiversion_edition: enterprise
-    resmoke_jobs_factor: 0.3  # Avoid starting too many mongod's under UBSAN build.
-    scons_cache_scope: shared
-    separate_debug: off
-    large_distro_name: rhel80-build
-  tasks:
-  - name: compile_test_and_package_serial_TG
-  - name: compile_test_and_package_parallel_unittest_stream_TG
-  - name: compile_benchmarks
-  - name: compile_integration_and_test_parallel_stream_TG
-  - name: .aggregation
-  - name: .auth
-  - name: audit
-  - name: .benchmarks
-  - name: .causally_consistent !.wo_snapshot
-  - name: .change_streams
-  - name: .misc_js
-  - name: .concurrency !.no_txns !.kill_terminate
-  - name: disk_wiredtiger
-  - name: .encrypt
-  - name: initial_sync_fuzzer_gen
-  - name: .jscore .common
-  - name: jsCore_minimum_batch_size
-  - name: jsCore_txns_large_txns_format
-  - name: json_schema
-  - name: .logical_session_cache .one_sec
-  - name: .multi_shard .common
-  - name: multiversion_gen
-  - name: .multiversion_fuzzer
-  - name: .multiversion_passthrough
-  - name: .random_multiversion_ds
-  - name: .read_write_concern
-  - name: replica_sets_large_txns_format_gen
-  - name: replica_sets_large_txns_format_jscore_passthrough
-  - name: .replica_sets !.multi_oplog
-  - name: .resharding_fuzzer
-  - name: .retry
-  - name: .rollbackfuzzer
-  - name: .read_only
-  - name: sasl
-  - name: secondary_reads_passthrough_gen
-  - name: session_jscore_passthrough
-  - name: .sharding .jscore !.wo_snapshot
-  - name: .sharding .common !.csrs
-  - name: snmp
-  - name: .updatefuzzer
-  - name: .serverless
-  - name: watchdog_wiredtiger
-  - name: server_discovery_and_monitoring_json_test_TG
-  - name: server_selection_json_test_TG
--- a/etc/evergreen_yml_components/variants/task_generation.yml
+++ b/etc/evergreen_yml_components/variants/task_generation.yml
@ -1,21 +0,0 @@
-# Build variant to generate tasks for evergreen versions.
-#
-# Updates to this file may also need to appear in etc/system_perf_yml_components/variants/task_generation.yml,
-# which is the same but excludes resmoke task generation tasks.
-#
-
-buildvariants:
- name: generate-tasks-for-version
-  display_name: "Generate tasks for evergreen version"
-  batchtime: 0
-  activate: true
-  run_on:
-  - rhel80-medium
-  tasks:
-  - name: version_gen
-    distros:
-    - ubuntu2004-medium
-  - name: version_burn_in_gen
-    distros:
-    - ubuntu2004-medium
-  - name: version_expansions_gen
--- a/src/mongo/db/auth/README.md
+++ b/src/mongo/db/auth/README.md
@ -180,7 +180,7 @@ the storage mechanism is listed as a sub-bullet below.
    authentication. GSSAPI is the communication method used to communicate with Kerberos servers and
    with clients. When initializing this auth mechanism, the server tries to acquire its credential
    information from the KDC by calling
-    [`tryAcquireServerCredential`](https://github.com/10gen/mongo-enterprise-modules/blob/r4.4.0/src/sasl/mongo_gssapi.h#L36).
+    [`tryAcquireServerCredential`](https://github.com/mongodb/mongo-enterprise-modules/blob/r4.4.0/src/sasl/mongo_gssapi.h#L36).
    If this is not approved, the server fasserts and the mechanism is not registered. On Windows,
    SChannel provides a `GSSAPI` library for the server to use. On other platforms, the Cyrus SASL
    library is used to make calls to the KDC (Kerberos key distribution center).
@ -607,30 +607,30 @@ The user must supply roles when running the `createUser` command. Roles are stor
 LDAP authorization is an external method of getting roles. When a user authenticates using LDAP,
 there are roles stored in the User document specified by the LDAP system. The LDAP system relies on
 the
-[`AuthzManagerExternalStateLDAP`](https://github.com/10gen/mongo-enterprise-modules/blob/r4.4.0/src/ldap/authz_manager_external_state_ldap.h)
+[`AuthzManagerExternalStateLDAP`](https://github.com/mongodb/mongo-enterprise-modules/blob/r4.4.0/src/ldap/authz_manager_external_state_ldap.h)
 to make external requests to the LDAP server. The `AuthzManagerExternalStateLDAP` wraps the
 `AuthzManagerExternalStateLocal` for the current process, initially attempting to route all
 Authorization requests to LDAP and falling back on Local Authorization. LDAP queries are generated
 from
-[`UserRequest`](https://github.com/10gen/mongo-enterprise-modules/blob/r4.4.0/src/ldap/authz_manager_external_state_ldap.cpp#L75-L113)
+[`UserRequest`](https://github.com/mongodb/mongo-enterprise-modules/blob/r4.4.0/src/ldap/authz_manager_external_state_ldap.cpp#L75-L113)
 objects, passing just the username into the query. If a user has specified the `userToDNMapping`
 server parameter, the `AuthorizationManager` calls the LDAPManager to transform the usernames into
 names that the LDAP server can understand. The LDAP subsystem relies on a complicated string
 escaping sequence, which is handled by the LDAPQuery class. After LDAP has returned the `User`
 document, it resolves role names into privileges by dispatching a call to
-[`Local::getUserObject`](https://github.com/10gen/mongo-enterprise-modules/blob/r4.7.0/src/ldap/authz_manager_external_state_ldap.cpp#L110-L123)
+[`Local::getUserObject`](https://github.com/mongodb/mongo-enterprise-modules/blob/r4.7.0/src/ldap/authz_manager_external_state_ldap.cpp#L110-L123)
 with a `UserRequest` struct containing a set of roles to be resolved.

 Connections to LDAP servers are made by the `LDAPManager` through the
-[`LDAPRunner`](https://github.com/10gen/mongo-enterprise-modules/blob/r4.4.0/src/ldap/ldap_runner.h)
+[`LDAPRunner`](https://github.com/mongodb/mongo-enterprise-modules/blob/r4.4.0/src/ldap/ldap_runner.h)
 by calling `bindAsUser()`. `BindAsUser()` attempts to set up a connection to the LDAP server using
 connection parameters specified through the command line when starting the process.The
-[`LDAPConnectionFactory`](https://github.com/10gen/mongo-enterprise-modules/blob/r4.4.0/src/ldap/connections/ldap_connection_factory.h)
+[`LDAPConnectionFactory`](https://github.com/mongodb/mongo-enterprise-modules/blob/r4.4.0/src/ldap/connections/ldap_connection_factory.h)
 is the class that is actually tasked with establishing a connection and sending raw bytes over the
 wire to the LDAP server, all other classes decompose the information to send and use the factory to
 actually send the information. The `LDAPConnectionFactory` has its own thread pool and executor to
 drive throughput for authorization. LDAP has an
-[`LDAPUserCacheInvalidator`](https://github.com/10gen/mongo-enterprise-modules/blob/r4.4.0/src/ldap/ldap_user_cache_invalidator_job.h)
+[`LDAPUserCacheInvalidator`](https://github.com/mongodb/mongo-enterprise-modules/blob/r4.4.0/src/ldap/ldap_user_cache_invalidator_job.h)
 that periodically sweeps the `AuthorizationManager` and deletes user entries that have `$external` as
 their authentication database.

@ -638,7 +638,7 @@ There are a few thread safety concerns when making connections to the LDAP serve
 LibLDAP to make connections to the LDAP server. LibLDAP comes without any thread safety guarantees,
 so all the calls to libLDAP are wrapped with mutexes to ensure thread safety when connecting to LDAP
 servers on certain distros. The logic to see whether libLDAP is thread-safe lives
-[here](https://github.com/10gen/mongo-enterprise-modules/blob/r4.4.0/src/ldap/connections/openldap_connection.cpp#L348-L378).
+[here](https://github.com/mongodb/mongo-enterprise-modules/blob/r4.4.0/src/ldap/connections/openldap_connection.cpp#L348-L378).

 #### <a name="x509azn"></a>X.509 Authorization

@ -717,7 +717,7 @@ Refer to the following links for definitions of the Classes referenced in this d
 | `AuthorizationManager` | [mongo/db/auth/authorization\_manager.h](https://github.com/mongodb/mongo/blob/r4.4.0/src/mongo/db/auth/authorization_manager.h) | Interface to external state providers |
 | `AuthorizationSession` | [mongo/db/auth/authorization\_session.h](https://github.com/mongodb/mongo/blob/r4.4.0/src/mongo/db/auth/authorization_session.h) | Representation of currently authenticated and authorized users on the `Client` connection |
 | `AuthzManagerExternalStateLocal` | [.../authz\_manager\_external\_state\_local.h](https://github.com/mongodb/mongo/blob/r4.4.0/src/mongo/db/auth/authz_manager_external_state_local.h) | `Local` implementation of user/role provider |
-| `AuthzManagerExternalStateLDAP` | [.../authz\_manager\_external\_state\_ldap.h](https://github.com/10gen/mongo-enterprise-modules/blob/r4.4.0/src/ldap/authz_manager_external_state_ldap.h) | `LDAP` implementation of users/role provider |
+| `AuthzManagerExternalStateLDAP` | [.../authz\_manager\_external\_state\_ldap.h](https://github.com/mongodb/mongo-enterprise-modules/blob/r4.4.0/src/ldap/authz_manager_external_state_ldap.h) | `LDAP` implementation of users/role provider |
 | `Client` | [mongo/db/client.h](https://github.com/mongodb/mongo/blob/r4.4.0/src/mongo/db/client.h) | An active client session, typically representing a remote driver or shell |
 | `Privilege` | [mongo/db/auth/privilege.h](https://github.com/mongodb/mongo/blob/r4.4.0/src/mongo/db/auth/privilege.h) | A set of `ActionType`s permitted on a particular `resource' |
 | `ResourcePattern` | [mongo/db/auth/resource\_pattern.h](https://github.com/mongodb/mongo/blob/r4.4.0/src/mongo/db/auth/resource_pattern.h) | A reference to a namespace, db, collection, or cluster to apply a set of `ActionType` privileges to |
--- a/src/mongo/db/s/README.md
+++ b/src/mongo/db/s/README.md
@ -949,7 +949,7 @@ For retry images saved in the image collection, the source will "downconvert" op
 `needsRetryImage: true` into two oplog entries, simulating the old format. As chunk migrations use
 internal commands, [this downconverting procedure](https://github.com/mongodb/mongo/blob/0beb0cacfcaf7b24259207862e1d0d489e1c16f1/src/mongo/db/s/session_catalog_migration_source.cpp#L58-L97)
 is installed under the hood. For resharding and tenant migrations, a new aggregation stage,
-[_internalFindAndModifyImageLookup](https://github.com/10gen/mongo/blob/e27dfa10b994f6deff7c59a122b87771cdfa8aba/src/mongo/db/pipeline/document_source_find_and_modify_image_lookup.cpp#L61),
+[_internalFindAndModifyImageLookup](https://github.com/mongodb/mongo/blob/e27dfa10b994f6deff7c59a122b87771cdfa8aba/src/mongo/db/pipeline/document_source_find_and_modify_image_lookup.cpp#L61),
 was introduced to perform the identical substitution. In order for this stage to have a valid timestamp
 to assign to the forged no-op oplog entry as result of the "downconvert", we must always assign an
 extra oplog slot when writing the original retryable findAndModify oplog entry with
--- a/src/mongo/db/timeseries/flat_bson.cpp
+++ b/src/mongo/db/timeseries/flat_bson.cpp
@ -250,7 +250,11 @@ typename FlatBSONStore<Element, Value>::Iterator FlatBSONStore<Element, Value>::
    auto it = begin();
    auto itEnd = end();
    for (; it != itEnd; ++it) {
-        (*_pos->_fieldNameToIndex)[it->fieldName().toString()] = it._pos->_offsetParent;
+        uassert(
+            12602100,
+            "Duplicate field names cannot be present in the same FlatBSON object",
+            _pos->_fieldNameToIndex->try_emplace(it->fieldName().toString(), it._pos->_offsetParent)
+                .second);
    }

    // Retry the search now when the map is created.
@ -280,7 +284,12 @@ FlatBSONStore<Element, Value>::Obj::insert(FlatBSONStore<Element, Value>::Iterat

    // Also store our offset in the fast lookup map if it is available.
    if (_pos->_fieldNameToIndex) {
-        _pos->_fieldNameToIndex->emplace(inserted->_element.fieldName(), inserted->_offsetParent);
+        uassert(
+            12602101,
+            "Duplicate field names cannot be present in the same FlatBSON object",
+            _pos->_fieldNameToIndex
+                ->try_emplace(inserted->_element.fieldName().toString(), inserted->_offsetParent)
+                .second);
    }

    // We need to traverse the hiearchy up to the root and modify stored offsets to account for
--- a/src/mongo/db/timeseries/minmax_test.cpp
+++ b/src/mongo/db/timeseries/minmax_test.cpp
@ -261,6 +261,37 @@ TEST(MinMax, SearchLookupMap) {
    ASSERT_EQ(obj.search(obj.begin(), "50")->fieldName(), "50");
 }

+TEST(MinMax, DuplicateFieldNamesWithLookupMap) {
+    MinMaxStore minmax;
+    auto obj = minmax.root();
+
+    // Insert 12 (kMaxLinearSearchLength) distinct fields ("0".."11") followed by two duplicate "a"
+    // entries. This will trigger the lookup map internally in flat_bson.
+    for (int i = 0; i < 12; ++i) {
+        obj.insert(obj.end(), std::to_string(i));
+    }
+    obj.insert(obj.end(), "a");
+    obj.insert(obj.end(), "a");
+
+    // Try to search for "a", this will trigger the lookup map internally in flat_bson as we fail to
+    // find it within 'kMaxLinearSearchLength' attempts. The map cannot contain duplicates so this
+    // search is well defined and throws.
+    ASSERT_THROWS(obj.search(obj.begin(), "a"), AssertionException);
+
+    // Try to insert another duplicate which will throw earlier as the lookup map exists and needs
+    // to be maintained.
+    obj.insert(obj.begin(), "x");
+    ASSERT_THROWS(obj.insert(obj.begin(), "x"), AssertionException);
+
+    // Searching for "a" or "x" is possible as we inserted one of them into the map.
+    auto found = obj.search(obj.begin(), "a");
+    ASSERT(found != obj.end());
+    ASSERT_EQ(found->fieldName(), "a");
+
+    found = obj.search(obj.begin(), "x");
+    ASSERT(found != obj.end());
+    ASSERT_EQ(found->fieldName(), "x");
+}

 }  // namespace
 }  // namespace mongo::timeseries