)]}'
{"id":"openstack%2Fnova~975011","triplet_id":"openstack%2Fnova~master~I582d34fff218c8db9b7592c745e10bb7d0cdbc29","project":"openstack/nova","branch":"master","attention_set":{"35111":{"account":{"_account_id":35111,"name":"Johannes Beisiegel","display_name":"jonnyb","email":"johannes.beisiegel@digits.schwarz","username":"jbe","status":"STACKIT"},"last_update":"2026-01-28 14:35:53.000000000","reason":"\u003cGERRIT_ACCOUNT_26250\u003e replied on the change","reason_account":{"_account_id":26250,"name":"Johannes Kulik","email":"johannes.kulik@sap.com","username":"jkulik"}}},"removed_from_attention_set":{},"hashtags":[],"change_id":"I582d34fff218c8db9b7592c745e10bb7d0cdbc29","subject":"Put nova-compute detach behind a different lock than attach","status":"NEW","created":"2026-01-28 14:09:25.000000000","updated":"2026-02-04 18:23:13.000000000","submit_type":"MERGE_IF_NECESSARY","mergeable":true,"submittable":false,"total_comment_count":1,"unresolved_comment_count":0,"work_in_progress":true,"has_review_started":false,"meta_rev_id":"791c06d8ba97053b88e7143a1fc5fdcc7934dca0","_number":975011,"virtual_id_number":975011,"owner":{"_account_id":35111,"name":"Johannes Beisiegel","display_name":"jonnyb","email":"johannes.beisiegel@digits.schwarz","username":"jbe","status":"STACKIT"},"actions":{},"labels":{"Verified":{"disliked":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]},"all":[{"tag":"autogenerated:zuul:check","value":-1,"date":"2026-01-28 16:12:29.000000000","permitted_voting_range":{"min":-2,"max":2},"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]}],"values":{"-2":"Fails","-1":"Doesn\u0027t seem to work"," 0":"No score","+1":"Works for me","+2":"Verified"},"description":"","value":-1,"default_value":0,"optional":true},"Code-Review":{"all":[{"value":0,"permitted_voting_range":{"min":-1,"max":1},"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]}],"values":{"-2":"Do not merge","-1":"This patch needs further work before it can be merged"," 0":"No score","+1":"Looks good to me, but someone else must approve","+2":"Looks good to me (core reviewer)"},"description":"","default_value":0,"optional":true},"Workflow":{"all":[{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]}],"values":{"-1":"Work in progress"," 0":"Ready for reviews","+1":"Approved"},"description":"","default_value":0,"optional":true},"Review-Priority":{"all":[{"value":0,"permitted_voting_range":{"min":0,"max":1},"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]}],"values":{" 0":"Default Priority","+1":"Contributor Review Promise","+2":"Core Review Promise"},"description":"","default_value":0,"optional":true}},"removable_reviewers":[],"reviewers":{"CC":[{"_account_id":14384,"name":"Quobyte CI","email":"openstack-ci-external@quobyte.com","username":"quobyteci","tags":["SERVICE_USER"]},{"_account_id":26250,"name":"Johannes Kulik","email":"johannes.kulik@sap.com","username":"jkulik"},{"_account_id":36571,"name":"vmwareapi CI run by SAP","display_name":"vmwareapi CI run by SAP","email":"openstack-ci@sap.com","username":"sap-openstack-ci","status":"CI account for integration tests of the Nova vmwareapi driver","tags":["SERVICE_USER"]}],"REVIEWER":[{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]}]},"pending_reviewers":{"CC":[{"_account_id":14384,"name":"Quobyte CI","email":"openstack-ci-external@quobyte.com","username":"quobyteci","tags":["SERVICE_USER"]},{"_account_id":26250,"name":"Johannes Kulik","email":"johannes.kulik@sap.com","username":"jkulik"},{"_account_id":36571,"name":"vmwareapi CI run by SAP","display_name":"vmwareapi CI run by SAP","email":"openstack-ci@sap.com","username":"sap-openstack-ci","status":"CI account for integration tests of the Nova vmwareapi driver","tags":["SERVICE_USER"]}],"REVIEWER":[{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]}]},"reviewer_updates":[{"updated":"2026-01-28 14:35:53.000000000","updated_by":{"_account_id":26250,"name":"Johannes Kulik","email":"johannes.kulik@sap.com","username":"jkulik"},"reviewer":{"_account_id":26250,"name":"Johannes Kulik","email":"johannes.kulik@sap.com","username":"jkulik"},"state":"CC"},{"updated":"2026-01-28 15:06:38.000000000","updated_by":{"_account_id":14384,"name":"Quobyte CI","email":"openstack-ci-external@quobyte.com","username":"quobyteci","tags":["SERVICE_USER"]},"reviewer":{"_account_id":14384,"name":"Quobyte CI","email":"openstack-ci-external@quobyte.com","username":"quobyteci","tags":["SERVICE_USER"]},"state":"CC"},{"updated":"2026-01-28 16:12:29.000000000","updated_by":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]},"reviewer":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]},"state":"REVIEWER"},{"updated":"2026-02-04 18:23:13.000000000","updated_by":{"_account_id":36571,"name":"vmwareapi CI run by SAP","display_name":"vmwareapi CI run by SAP","email":"openstack-ci@sap.com","username":"sap-openstack-ci","status":"CI account for integration tests of the Nova vmwareapi driver","tags":["SERVICE_USER"]},"reviewer":{"_account_id":36571,"name":"vmwareapi CI run by SAP","display_name":"vmwareapi CI run by SAP","email":"openstack-ci@sap.com","username":"sap-openstack-ci","status":"CI account for integration tests of the Nova vmwareapi driver","tags":["SERVICE_USER"]},"state":"CC"}],"messages":[{"id":"48e711efd009b868ded7993ff16f578a1bf629f6","tag":"autogenerated:gerrit:newWipPatchSet","author":{"_account_id":35111,"name":"Johannes Beisiegel","display_name":"jonnyb","email":"johannes.beisiegel@digits.schwarz","username":"jbe","status":"STACKIT"},"date":"2026-01-28 14:09:25.000000000","message":"Uploaded patch set 1.","accounts_in_message":[],"_revision_number":1},{"id":"5efffee1d684e607fc811da341605ea638708d5b","tag":"autogenerated:gerrit:newWipPatchSet","author":{"_account_id":35111,"name":"Johannes Beisiegel","display_name":"jonnyb","email":"johannes.beisiegel@digits.schwarz","username":"jbe","status":"STACKIT"},"date":"2026-01-28 14:15:32.000000000","message":"Uploaded patch set 2: Commit message was updated.","accounts_in_message":[],"_revision_number":2},{"id":"4e9182bc1d47cbf4712d9abe0cc0f0d10b7499ca","author":{"_account_id":26250,"name":"Johannes Kulik","email":"johannes.kulik@sap.com","username":"jkulik"},"date":"2026-01-28 14:35:53.000000000","message":"Patch Set 2:\n\n(1 comment)","accounts_in_message":[],"_revision_number":2},{"id":"401741cbcf5b4f7cdb9c5a917d30f37ba6503e0f","author":{"_account_id":14384,"name":"Quobyte CI","email":"openstack-ci-external@quobyte.com","username":"quobyteci","tags":["SERVICE_USER"]},"date":"2026-01-28 15:06:38.000000000","message":"Patch Set 1:\n\nBuild Failed \n\n* quobyteci:  nova_quobyteci : FAILURE, logs at: https://oscilogs.quobyte.com/logs/I582d34fff218c8db9b7592c745e10bb7d0cdbc29 .","accounts_in_message":[],"_revision_number":1},{"id":"43155080b1c4648ad0e40dedd702d53203ffd743","author":{"_account_id":14384,"name":"Quobyte CI","email":"openstack-ci-external@quobyte.com","username":"quobyteci","tags":["SERVICE_USER"]},"date":"2026-01-28 15:15:54.000000000","message":"Patch Set 2:\n\nBuild Failed \n\n* quobyteci:  nova_quobyteci : FAILURE, logs at: https://oscilogs.quobyte.com/logs/I582d34fff218c8db9b7592c745e10bb7d0cdbc29 .","accounts_in_message":[],"_revision_number":2},{"id":"e11016e5a3b13e4db9928f2f599891506bc88fb3","tag":"autogenerated:zuul:check","author":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]},"date":"2026-01-28 16:12:29.000000000","message":"Patch Set 2: Verified-1\n\nBuild failed (check pipeline).  For information on how to proceed, see\nhttps://docs.opendev.org/opendev/infra-manual/latest/developers.html#automated-testing\nand https://docs.openstack.org/project-team-guide/testing.html#how-to-handle-test-failures\n\nhttps://zuul.opendev.org/t/openstack/buildset/0f13e3c60d704f24bb4095fb62afc50a\n\n- grenade-skip-level-always https://zuul.opendev.org/t/openstack/build/fe202b3b0d644ba68769db62467597e3 : SUCCESS in 1h 00m 50s\n- tempest-integrated-compute https://zuul.opendev.org/t/openstack/build/fa8a287417ad427fb501be4e822c3de1 : SUCCESS in 1h 55m 53s\n- openstacksdk-functional-devstack https://zuul.opendev.org/t/openstack/build/c3fd0d9918924f9b96bbbe1d236cabb8 : SUCCESS in 1h 02m 05s\n- openstack-tox-cover https://zuul.opendev.org/t/openstack/build/1719189efd1943e48481fc3b2a1793f5 : SUCCESS in 17m 27s\n- openstack-tox-pep8 https://zuul.opendev.org/t/openstack/build/2b3c0ce68ddc4b80a87154c121558bbd : SUCCESS in 4m 09s\n- openstack-tox-py310 https://zuul.opendev.org/t/openstack/build/450b66d8cc094965998280f4dd0b1258 : SUCCESS in 15m 13s\n- openstack-tox-py313 https://zuul.opendev.org/t/openstack/build/5f6109970b7a48e79790f80f3858b8a0 : SUCCESS in 8m 24s\n- openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0d0ce8a424664a7e8b44f28abee33ae5 : SUCCESS in 13m 38s\n- ironic-tempest-bios-ipmi-direct https://zuul.opendev.org/t/openstack/build/41c305df4a0f45339d86ceafb1c90952 : SUCCESS in 1h 21m 04s (non-voting)\n- nova-ceph-multistore https://zuul.opendev.org/t/openstack/build/1847ee2e6b864d0396b20caa835d1187 : SUCCESS in 1h 37m 15s\n- nova-live-migration https://zuul.opendev.org/t/openstack/build/1b76e21822b84470aca82fb61b2e5e18 : SUCCESS in 1h 01m 03s\n- nova-live-migration-ceph https://zuul.opendev.org/t/openstack/build/b9435aaa8c5a4a16ac0a4edb6b6acb02 : SUCCESS in 27m 34s\n- nova-multi-cell https://zuul.opendev.org/t/openstack/build/319590a06aa7440e82a006ae6520a027 : SUCCESS in 1h 46m 07s\n- nova-next https://zuul.opendev.org/t/openstack/build/f24928d288a54e369ff7e920758e605b : FAILURE in 1h 22m 09s\n- nova-alt-configurations https://zuul.opendev.org/t/openstack/build/48d42e77cb7b42169516abd69b4f10d5 : SUCCESS in 49m 51s\n- nova-tox-validate-backport https://zuul.opendev.org/t/openstack/build/a7346f56ccfe419e97574303c241b740 : SUCCESS in 2m 51s (non-voting)\n- nova-tox-functional-py310 https://zuul.opendev.org/t/openstack/build/eaac76db15cd401c8624f56f82cc03b6 : SUCCESS in 26m 55s\n- nova-tox-functional-py313 https://zuul.opendev.org/t/openstack/build/9c2e81a908d641b191182fc50ecd2254 : SUCCESS in 24m 36s\n- nova-grenade-multinode https://zuul.opendev.org/t/openstack/build/563213ff43b6435080a4b35f90a99604 : SUCCESS in 59m 51s\n- tempest-ipv6-only https://zuul.opendev.org/t/openstack/build/83c4c286ef5e49bbbce2abeb465df16b : SUCCESS in 57m 53s\n- cyborg-tempest https://zuul.opendev.org/t/openstack/build/ed6faa05e7464ae48837f2781bc36bd9 : FAILURE in 21m 46s (non-voting)\n- barbican-tempest-plugin-simple-crypto https://zuul.opendev.org/t/openstack/build/d2dbec0b47c448e98ffbab9a899eca2a : SUCCESS in 33m 11s (non-voting)\n- nova-tox-py312-threading https://zuul.opendev.org/t/openstack/build/3f07407fe95645618f9da320bc140a89 : SUCCESS in 13m 32s","accounts_in_message":[],"_revision_number":2},{"id":"990cd087020096b4871d76f7bdb59115b52ea96b","tag":"autogenerated:zuul:check-arm64","author":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]},"date":"2026-01-29 00:12:54.000000000","message":"Patch Set 2:\n\nBuild succeeded (ARM64 pipeline).\nhttps://zuul.opendev.org/t/openstack/buildset/a02164753ce9451d9a8a19ce21f47e0b\n\n- openstack-tox-py310-arm64 https://zuul.opendev.org/t/openstack/build/01890012d1034ca1959e8483e33a4f3e : SUCCESS in 35m 37s (non-voting)\n- openstack-tox-py312-arm64 https://zuul.opendev.org/t/openstack/build/56cfc8768e0d4576a443137eead5c221 : SUCCESS in 33m 08s (non-voting)\n- openstack-tox-py313-arm64 https://zuul.opendev.org/t/openstack/build/5363c4ba98fe4befae899cc363859555 : RETRY_LIMIT in 6m 40s (non-voting)","accounts_in_message":[],"_revision_number":2},{"id":"791c06d8ba97053b88e7143a1fc5fdcc7934dca0","tag":"autogenerated:sap-openstack-ci~result","author":{"_account_id":36571,"name":"vmwareapi CI run by SAP","display_name":"vmwareapi CI run by SAP","email":"openstack-ci@sap.com","username":"sap-openstack-ci","status":"CI account for integration tests of the Nova vmwareapi driver","tags":["SERVICE_USER"]},"date":"2026-02-04 18:23:13.000000000","message":"Patch Set 2:\n\nIgnore for now: Test failed. Logs on \u003chttp://openstack-ci-logs.global.cloud.sap/openstack-nova-975011-r2dz5/index.html\u003e","accounts_in_message":[],"_revision_number":2}],"current_revision_number":2,"current_revision":"70c2925e81b4f7f48adbac2b569721af8e0c0a43","revisions":{"e23f0976008fe6c0c84caecb6047d70f144cccf3":{"kind":"REWORK","_number":1,"created":"2026-01-28 14:09:25.000000000","uploader":{"_account_id":35111,"name":"Johannes Beisiegel","display_name":"jonnyb","email":"johannes.beisiegel@digits.schwarz","username":"jbe","status":"STACKIT"},"ref":"refs/changes/11/975011/1","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/nova","ref":"refs/changes/11/975011/1","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/nova refs/changes/11/975011/1 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/nova refs/changes/11/975011/1 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/nova refs/changes/11/975011/1 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/nova refs/changes/11/975011/1"}}},"commit":{"parents":[{"commit":"59a7093915298973c72b6d1749a6acd27e0045a9","subject":"Merge \"Use the correct name for the ironic check job\"","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/59a7093915298973c72b6d1749a6acd27e0045a9"}]}],"author":{"name":"Johannes Beisiegel","email":"johannes.beisiegel@stackit.cloud","date":"2026-01-28 13:45:15.000000000","tz":60},"committer":{"name":"Johannes Beisiegel","email":"johannes.beisiegel@stackit.cloud","date":"2026-01-28 14:05:19.000000000","tz":60},"subject":"Put nova-compute detach behind a different lock than attach","message":"Put nova-compute detach behind a different lock than attach\n\nIn nova-compute, both detaching and attaching volumes are locked\nbehind the same synchronization primitive. A high number of\nvolume requests on a single instance can result in lock contention,\nwhich will affect the latency of the attach path. Although the attach\noperation is asynchronous from the client\u0027s perspective, it must\nacquire the lock in do_reserve_block_device (running on the hypervisor)\nbefore completing the request.\n\nWhen detaching a volume in QEMU, depending on the backend, it is\nalso likely to take a lot of time (\u003e20 seconds). This will\nultimately stall further attach requests and create a long wait\ntime for lock acquisition.\n\nTo reduce the impact, the detach operation is put behind a\ndifferent lock primitive, making attaching and detaching independent\nand much faster.\n\nChange-Id: I582d34fff218c8db9b7592c745e10bb7d0cdbc29\nSigned-off-by: Johannes Beisiegel \u003cjohannes.beisiegel@stackit.cloud\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/e23f0976008fe6c0c84caecb6047d70f144cccf3"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/e23f0976008fe6c0c84caecb6047d70f144cccf3"}]},"branch":"refs/heads/master"},"70c2925e81b4f7f48adbac2b569721af8e0c0a43":{"kind":"NO_CODE_CHANGE","_number":2,"created":"2026-01-28 14:15:32.000000000","uploader":{"_account_id":35111,"name":"Johannes Beisiegel","display_name":"jonnyb","email":"johannes.beisiegel@digits.schwarz","username":"jbe","status":"STACKIT"},"ref":"refs/changes/11/975011/2","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/nova","ref":"refs/changes/11/975011/2","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/nova refs/changes/11/975011/2 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/nova refs/changes/11/975011/2 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/nova refs/changes/11/975011/2 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/nova refs/changes/11/975011/2"}}},"commit":{"parents":[{"commit":"59a7093915298973c72b6d1749a6acd27e0045a9","subject":"Merge \"Use the correct name for the ironic check job\"","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/59a7093915298973c72b6d1749a6acd27e0045a9"}]}],"author":{"name":"Johannes Beisiegel","email":"johannes.beisiegel@stackit.cloud","date":"2026-01-28 13:45:15.000000000","tz":60},"committer":{"name":"Johannes Beisiegel","email":"johannes.beisiegel@stackit.cloud","date":"2026-01-28 14:12:19.000000000","tz":60},"subject":"Put nova-compute detach behind a different lock than attach","message":"Put nova-compute detach behind a different lock than attach\n\nIn nova-compute, both detaching and attaching volumes are locked\nbehind the same synchronization primitive. A high number of\nvolume requests on a single instance can result in lock contention,\nwhich will affect the latency of the attach path. Although the nova-api\nattach operation is asynchronous from the client\u0027s perspective, it must\nacquire the lock in do_reserve_block_device (running on the hypervisor)\nbefore accepting the request. The detach path is truly async and\nonly aquires the lock after the client request has been accepted.\n\nWhen detaching a volume in QEMU, depending on the backend, it is\nalso not unlikely to take a lot of time (\u003e20 seconds). This will\nultimately stall further attach requests and create a long wait\ntime for lock acquisition.\n\nTo reduce the impact, the detach operation is put behind a\ndifferent lock primitive, making attaching and detaching independent\nand much faster.\n\nChange-Id: I582d34fff218c8db9b7592c745e10bb7d0cdbc29\nSigned-off-by: Johannes Beisiegel \u003cjohannes.beisiegel@stackit.cloud\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/70c2925e81b4f7f48adbac2b569721af8e0c0a43"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/70c2925e81b4f7f48adbac2b569721af8e0c0a43"}]},"branch":"refs/heads/master"}},"requirements":[],"submit_records":[{"rule_name":"gerrit~DefaultSubmitRule","status":"OK","labels":[{"label":"Verified","status":"MAY","applied_by":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]}},{"label":"Code-Review","status":"MAY"},{"label":"Workflow","status":"MAY"},{"label":"Review-Priority","status":"MAY"}]}],"submit_requirements":[{"name":"Verified","description":"Verified in gate by CI","status":"UNSATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Verified\u003dMAX AND -label:Verified\u003dMIN","fulfilled":false,"status":"FAIL","passing_atoms":[],"failing_atoms":["label:Verified\u003dMAX","label:Verified\u003dMIN"],"atom_explanations":{"label:Verified\u003dMAX":"","label:Verified\u003dMIN":""}}},{"name":"Code-Review","description":"Code reviewed by core reviewer","status":"UNSATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Code-Review\u003dMAX AND -label:Code-Review\u003dMIN","fulfilled":false,"status":"FAIL","passing_atoms":[],"failing_atoms":["label:Code-Review\u003dMAX","label:Code-Review\u003dMIN"],"atom_explanations":{"label:Code-Review\u003dMAX":"","label:Code-Review\u003dMIN":""}}},{"name":"Review-Priority","description":"Review Priority","status":"NOT_APPLICABLE","is_legacy":false,"applicability_expression_result":{"fulfilled":false,"status":"FAIL"},"submittability_expression_result":{"expression":"is:true","fulfilled":true,"status":"NOT_EVALUATED","passing_atoms":[],"failing_atoms":[],"atom_explanations":{}}},{"name":"Workflow","description":"Approved for gate by core reviewer","status":"UNSATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Workflow\u003dMAX AND -label:Workflow\u003dMIN","fulfilled":false,"status":"FAIL","passing_atoms":[],"failing_atoms":["label:Workflow\u003dMAX","label:Workflow\u003dMIN"],"atom_explanations":{"label:Workflow\u003dMAX":"","label:Workflow\u003dMIN":""}}}]}