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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/9459787426f942a3b2592768ee7df7bb\n\n- grenade-skip-level-always https://zuul.opendev.org/t/openstack/build/892aae263cc5465d826a7698526169a1 : SUCCESS in 35m 09s\n- tempest-integrated-compute https://zuul.opendev.org/t/openstack/build/012f9fe70ce84dedbe5727c1af32eac9 : SUCCESS in 51m 10s\n- openstacksdk-functional-devstack https://zuul.opendev.org/t/openstack/build/f5757baca1b74f54a00b40fdb3469a52 : SUCCESS in 39m 50s\n- openstack-tox-cover https://zuul.opendev.org/t/openstack/build/e306196acb414286936eacead1622e5e : SUCCESS in 1h 19m 05s\n- openstack-tox-pep8 https://zuul.opendev.org/t/openstack/build/bf909de2079f4dd48804432caf51f138 : SUCCESS in 4m 21s\n- openstack-tox-py311 https://zuul.opendev.org/t/openstack/build/1dd20ad667c04c2e9e3a62b3ef85ead1 : SUCCESS in 12m 10s\n- openstack-tox-py313 https://zuul.opendev.org/t/openstack/build/dce97031800f4609ac0a12b7f47d6e2a : SUCCESS in 13m 14s\n- openstack-tox-py314 https://zuul.opendev.org/t/openstack/build/143320f874c249919f1adc6972faf244 : SUCCESS in 19m 19s (non-voting)\n- openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9dc58eb7fa7b4d688fc8749a5dc3fc0f : SUCCESS in 12m 38s\n- build-openstack-releasenotes https://zuul.opendev.org/t/openstack/build/4a6472d9b4734876a0db21068e43b812 : SUCCESS in 7m 49s\n- ironic-tempest-bios-ipmi-autodetect https://zuul.opendev.org/t/openstack/build/e461f624aeab431982c7fb0e2b35e02d : SUCCESS in 52m 08s (non-voting)\n- nova-ceph-multistore https://zuul.opendev.org/t/openstack/build/d3c4210aeb9a4d06b82f9a29cb056abf : SUCCESS in 54m 00s\n- nova-live-migration https://zuul.opendev.org/t/openstack/build/b3f42171d8904ebdb0732ca3be5189c7 : POST_FAILURE in 35m 06s\n- nova-whitebox https://zuul.opendev.org/t/openstack/build/c234db925f504696aa44710218d46726 : SUCCESS in 37m 11s\n- nova-graceful-shutdown https://zuul.opendev.org/t/openstack/build/ef0b2c5c23cc4848aac85c2a3587c488 : SUCCESS in 1h 01m 26s\n- nova-live-migration-ceph https://zuul.opendev.org/t/openstack/build/0125a77184bd442a8ba72a593b6cb504 : SUCCESS in 54m 16s\n- nova-lvm https://zuul.opendev.org/t/openstack/build/8c100d209710480e9006907793ce01f4 : FAILURE in 15m 34s\n- nova-multi-cell https://zuul.opendev.org/t/openstack/build/33fd7daefa7f4c2d9fd9e7b691ae55b5 : SUCCESS in 1h 06m 57s\n- nova-next https://zuul.opendev.org/t/openstack/build/45d0fdd3bd7e495da26e80b13cfb9f70 : SUCCESS in 1h 57m 50s\n- nova-alt-configurations https://zuul.opendev.org/t/openstack/build/6398f7be92434e4f924c0f134625e26b : SUCCESS in 49m 55s\n- nova-tox-validate-backport https://zuul.opendev.org/t/openstack/build/e70eab29f90945d38aa86814bc6daf50 : SUCCESS in 3m 46s (non-voting)\n- nova-tox-functional-py311 https://zuul.opendev.org/t/openstack/build/1d03de0c605c44fea7b4b8c4dcb399c2 : SUCCESS in 32m 21s\n- nova-tox-functional-py313 https://zuul.opendev.org/t/openstack/build/ea794379d599462b95d5fa68cdb80e62 : SUCCESS in 28m 34s\n- nova-tox-functional-py313-threading https://zuul.opendev.org/t/openstack/build/b3a7afd0bb0442b8895b42bb309d948c : SUCCESS in 39m 46s (non-voting)\n- nova-grenade-multinode https://zuul.opendev.org/t/openstack/build/ca895075564b49d49fd7ab76049dc7e2 : SUCCESS in 1h 34m 57s\n- tempest-ipv6-only https://zuul.opendev.org/t/openstack/build/1871db7ef93e4dad8b21f247e90deca7 : SUCCESS in 35m 27s\n- cyborg-tempest-py3 https://zuul.opendev.org/t/openstack/build/49adbc84069e48b7a6cf9f52942c8e5b : SUCCESS in 53m 27s (non-voting)\n- barbican-tempest-plugin-simple-crypto https://zuul.opendev.org/t/openstack/build/8ae62cde788142a3a153b7a31f8e7423 : SUCCESS in 20m 08s (non-voting)\n- nova-tox-py313-threading https://zuul.opendev.org/t/openstack/build/adc03c0aadfd4b42b280a12e1a0d0204 : SUCCESS in 17m 17s","accounts_in_message":[],"_revision_number":3},{"id":"97ccbb4eff83ab822cc7d311c93b92ec0d2c7770","author":{"_account_id":34539,"name":"minwoo seo","email":"alsdn1211@naver.com","username":"minwooseo"},"date":"2026-08-07 00:38:24.000000000","message":"Patch Set 3:\n\n(1 comment)","accounts_in_message":[],"_revision_number":3},{"id":"e5c3919b5f1eba38b5fb0bd90362a053c78fec74","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":"2026-08-07 01:09:04.000000000","message":"Patch Set 3:\n\nIgnore for now: Test failed. Logs on \u003chttp://openstack-ci-logs.global.cloud.sap/openstack-nova-999841-gmb6j/index.html\u003e","accounts_in_message":[],"_revision_number":3},{"id":"23d9fb6e7f0b233978843cf9507f34ec0cd2f9d2","tag":"autogenerated:zuul:check-arm64","author":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]},"date":"2026-08-07 01:16:54.000000000","message":"Patch Set 3:\n\nBuild succeeded (ARM64 pipeline).\nhttps://zuul.opendev.org/t/openstack/buildset/d53aafc4bda74af99337b8ec41d52b9f\n\n- openstack-tox-py311-arm64 https://zuul.opendev.org/t/openstack/build/b566dedb286444168a5f3880da5b26ab : SUCCESS in 24m 04s (non-voting)\n- openstack-tox-py313-arm64 https://zuul.opendev.org/t/openstack/build/c2881cb8bd0c4ca6935eb2039e3b4714 : SUCCESS in 15m 28s (non-voting)\n- openstack-tox-py314-arm64 https://zuul.opendev.org/t/openstack/build/9394d0646aec483eb2ed9cac055720f1 : SUCCESS in 36m 20s (non-voting)","accounts_in_message":[],"_revision_number":3},{"id":"f10eb72c9ca5520705165d517d37e465acbb2071","tag":"autogenerated:zuul:check","author":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]},"date":"2026-08-07 02:45:36.000000000","message":"Patch Set 3:\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/45b139d7cbcc4b75853ef0d37a960bcd\n\n- grenade-skip-level-always https://zuul.opendev.org/t/openstack/build/d6f28888c54d488bb4f66a00d8cb4fe9 : SUCCESS in 41m 49s\n- tempest-integrated-compute https://zuul.opendev.org/t/openstack/build/4073e4791e7847aeac51f5dae386dfb2 : SUCCESS in 1h 08m 26s\n- openstacksdk-functional-devstack https://zuul.opendev.org/t/openstack/build/53c58861bd4c44028c6b77f35310051b : FAILURE in 43m 35s\n- openstack-tox-cover https://zuul.opendev.org/t/openstack/build/8800167b8ce643439cfcc569ac63950b : SUCCESS in 58m 09s\n- openstack-tox-pep8 https://zuul.opendev.org/t/openstack/build/8abc7bf8c7eb46e3b559ebaee1d72563 : SUCCESS in 5m 56s\n- openstack-tox-py311 https://zuul.opendev.org/t/openstack/build/95b2dfb7d0044f55aa5ee365aa8a7f5e : SUCCESS in 14m 08s\n- openstack-tox-py313 https://zuul.opendev.org/t/openstack/build/7fe2d43304c24d90b820e684499fab28 : SUCCESS in 7m 54s\n- openstack-tox-py314 https://zuul.opendev.org/t/openstack/build/2505b78207ca4c9ca77865319e805aab : SUCCESS in 11m 35s (non-voting)\n- openstack-tox-docs https://zuul.opendev.org/t/openstack/build/523521aea8764acc83879453b636421a : SUCCESS in 11m 58s\n- build-openstack-releasenotes https://zuul.opendev.org/t/openstack/build/2c96f528efd74aa48a3c4c86687616b2 : SUCCESS in 7m 09s\n- ironic-tempest-bios-ipmi-autodetect https://zuul.opendev.org/t/openstack/build/c205eda212a5416ebbd51e1d03b53516 : SUCCESS in 54m 09s (non-voting)\n- nova-ceph-multistore https://zuul.opendev.org/t/openstack/build/607b10fb514d4e7e9737b812857229a6 : SUCCESS in 1h 35m 22s\n- nova-live-migration https://zuul.opendev.org/t/openstack/build/7d120b70029c4e49973b33f81e95c7cf : SUCCESS in 34m 25s\n- nova-whitebox https://zuul.opendev.org/t/openstack/build/886b948cce9443c39b087ec07bb8fb5f : SUCCESS in 33m 50s\n- nova-graceful-shutdown https://zuul.opendev.org/t/openstack/build/6ef967280c6c490cb4397431eb7bb660 : SUCCESS in 57m 59s\n- nova-live-migration-ceph https://zuul.opendev.org/t/openstack/build/f4bb23c88b5b4c9db60f531cb8b07f4b : SUCCESS in 49m 08s\n- nova-lvm https://zuul.opendev.org/t/openstack/build/115565aa1b7148d1b9f6239aa871ce05 : SUCCESS in 1h 00m 09s\n- nova-multi-cell https://zuul.opendev.org/t/openstack/build/c1c34a683cb440a9a1f7f91262b805d0 : SUCCESS in 1h 56m 53s\n- nova-next https://zuul.opendev.org/t/openstack/build/fcffb8c0241043fb83fbd618935dd56e : SUCCESS in 2h 01m 23s\n- nova-alt-configurations https://zuul.opendev.org/t/openstack/build/e6d333ee8d584f39b59a9455f9c8148b : SUCCESS in 28m 23s\n- nova-tox-validate-backport https://zuul.opendev.org/t/openstack/build/e68c2507486447ab84606b150cb37890 : SUCCESS in 4m 31s (non-voting)\n- nova-tox-functional-py311 https://zuul.opendev.org/t/openstack/build/146f996b760c4d649723a53bf3242c19 : SUCCESS in 22m 14s\n- nova-tox-functional-py313 https://zuul.opendev.org/t/openstack/build/d093edfbb11f484289d22d2d947b541e : SUCCESS in 23m 04s\n- nova-tox-functional-py313-threading https://zuul.opendev.org/t/openstack/build/6fdddb390594401d8fb0e191fec5dc32 : SUCCESS in 30m 03s (non-voting)\n- nova-grenade-multinode https://zuul.opendev.org/t/openstack/build/1c4e78fadc1e4219806ede1eeaf84890 : SUCCESS in 1h 28m 52s\n- tempest-ipv6-only https://zuul.opendev.org/t/openstack/build/76f603854c6f49128e7123dd7def1aec : SUCCESS in 42m 20s\n- cyborg-tempest-py3 https://zuul.opendev.org/t/openstack/build/3ea7fe38ae31403f9d45c7c8e7cc1ce0 : SUCCESS in 56m 16s (non-voting)\n- barbican-tempest-plugin-simple-crypto https://zuul.opendev.org/t/openstack/build/e2bb903633444650b8ab00b50370cde6 : SUCCESS in 25m 14s (non-voting)\n- nova-tox-py313-threading https://zuul.opendev.org/t/openstack/build/9d9cc7022910432e98dbfcd4195e5055 : SUCCESS in 13m 56s","accounts_in_message":[],"_revision_number":3},{"id":"4519f38f19f780bb2276ffb019c2987eefd4db3a","author":{"_account_id":34539,"name":"minwoo seo","email":"alsdn1211@naver.com","username":"minwooseo"},"date":"2026-08-07 04:16:06.000000000","message":"Patch Set 3:\n\n(1 comment)","accounts_in_message":[],"_revision_number":3},{"id":"845fbcdfdeb301bdebd4e39685d7923b5ef82d29","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":"2026-08-07 04:52:05.000000000","message":"Patch Set 3:\n\nIgnore for now: Test failed. Logs on \u003chttp://openstack-ci-logs.global.cloud.sap/openstack-nova-999841-q288t/index.html\u003e","accounts_in_message":[],"_revision_number":3},{"id":"b75d43f09ad7611502811ce0bb589680206114c5","tag":"autogenerated:zuul:check-arm64","author":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]},"date":"2026-08-07 05:09:40.000000000","message":"Patch Set 3:\n\nBuild succeeded (ARM64 pipeline).\nhttps://zuul.opendev.org/t/openstack/buildset/faaae8e6e7224edfaca232c8ab6b88fc\n\n- openstack-tox-py311-arm64 https://zuul.opendev.org/t/openstack/build/e2defb98b2b540a09f9b6c5c0714b181 : SUCCESS in 22m 20s (non-voting)\n- openstack-tox-py313-arm64 https://zuul.opendev.org/t/openstack/build/1302d94f78f44d2ead8940689d03435c : SUCCESS in 15m 12s (non-voting)\n- openstack-tox-py314-arm64 https://zuul.opendev.org/t/openstack/build/d62506a276ae4fcfbc560eb7cad8c9ce : SUCCESS in 41m 44s (non-voting)","accounts_in_message":[],"_revision_number":3},{"id":"08614674a0a7699de8586118b3dd039bf1662ce3","tag":"autogenerated:zuul:check","author":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]},"date":"2026-08-07 06:18:53.000000000","message":"Patch Set 3: Verified+1\n\nBuild succeeded (check pipeline).\nhttps://zuul.opendev.org/t/openstack/buildset/6be7223605384461b74ebc95a402fbd4\n\n- grenade-skip-level-always https://zuul.opendev.org/t/openstack/build/a662503dbf2e4feebd3d23c8ee8742c5 : SUCCESS in 1h 04m 07s\n- tempest-integrated-compute https://zuul.opendev.org/t/openstack/build/6f6c69531ee0411885588a6f985dd91b : SUCCESS in 59m 52s\n- openstacksdk-functional-devstack https://zuul.opendev.org/t/openstack/build/28171ea103c34b40a1f673ce1311f775 : SUCCESS in 1h 00m 56s\n- openstack-tox-cover https://zuul.opendev.org/t/openstack/build/6ff46a076a2d4b87af545aa33c3747ce : SUCCESS in 1h 09m 15s\n- openstack-tox-pep8 https://zuul.opendev.org/t/openstack/build/c0006dbf925147c095fca36718a89fa6 : SUCCESS in 9m 38s\n- openstack-tox-py311 https://zuul.opendev.org/t/openstack/build/9876cf6aa43a47b8bb74d1dc1422a1e2 : SUCCESS in 13m 43s\n- openstack-tox-py313 https://zuul.opendev.org/t/openstack/build/c6ec1012db5d4ebfa114c45ca522642f : SUCCESS in 14m 06s\n- openstack-tox-py314 https://zuul.opendev.org/t/openstack/build/dacf90d3bfbb4618814b1c29e7601365 : SUCCESS in 18m 31s (non-voting)\n- openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b48e01b7ef82402ba2fddd36fcd76383 : SUCCESS in 12m 23s\n- build-openstack-releasenotes https://zuul.opendev.org/t/openstack/build/1df5b951f1f54eedb16b772f7b4ddf70 : SUCCESS in 10m 30s\n- ironic-tempest-bios-ipmi-autodetect https://zuul.opendev.org/t/openstack/build/5c6054775160404497046b44c42738e9 : SUCCESS in 33m 53s (non-voting)\n- nova-ceph-multistore https://zuul.opendev.org/t/openstack/build/eb4881022f2141919e6184f2487bb09e : SUCCESS in 1h 27m 54s\n- nova-live-migration https://zuul.opendev.org/t/openstack/build/d723ff58b54b49138b27ef8a8cf77beb : SUCCESS in 23m 19s\n- nova-whitebox https://zuul.opendev.org/t/openstack/build/f696d63e13d84ea9bb448124a7435a4f : SUCCESS in 35m 19s\n- nova-graceful-shutdown https://zuul.opendev.org/t/openstack/build/f1b7a23b656f41e48e608f66eb5b6307 : SUCCESS in 1h 01m 27s\n- nova-live-migration-ceph https://zuul.opendev.org/t/openstack/build/448ef9f9200442d8bb1e9ff8df5b4f10 : SUCCESS in 48m 37s\n- nova-lvm https://zuul.opendev.org/t/openstack/build/0251d970dc2e4188b92cefb1f8dbe57f : SUCCESS in 56m 18s\n- nova-multi-cell https://zuul.opendev.org/t/openstack/build/2ba8a8f936f44c4b9cbf8fb479367097 : SUCCESS in 1h 09m 04s\n- nova-next https://zuul.opendev.org/t/openstack/build/55c6bf51ac5e42f8a79896dbca7c6046 : SUCCESS in 1h 56m 16s\n- nova-alt-configurations https://zuul.opendev.org/t/openstack/build/84aaf39dbd104074a710bffba6922aea : SUCCESS in 42m 25s\n- nova-tox-validate-backport https://zuul.opendev.org/t/openstack/build/4f85f5c900954df991ab61606c55bf65 : SUCCESS in 6m 37s (non-voting)\n- nova-tox-functional-py311 https://zuul.opendev.org/t/openstack/build/7e2f5b13848f45a4a80c059527783080 : SUCCESS in 20m 58s\n- nova-tox-functional-py313 https://zuul.opendev.org/t/openstack/build/e9eff30114c044b0a1f1f9e3eb4ee73b : SUCCESS in 25m 49s\n- nova-tox-functional-py313-threading https://zuul.opendev.org/t/openstack/build/4ba1e68fd5a742d6a9066dd25cecf0d0 : SUCCESS in 34m 08s (non-voting)\n- nova-grenade-multinode https://zuul.opendev.org/t/openstack/build/ab0e27490719453a8fd8a02dc15053db : SUCCESS in 1h 31m 24s\n- tempest-ipv6-only https://zuul.opendev.org/t/openstack/build/c0f90d69165e4180973351b44291f22f : SUCCESS in 25m 53s\n- cyborg-tempest-py3 https://zuul.opendev.org/t/openstack/build/60753241e6a04367bdb9612d4f85337d : SUCCESS in 43m 25s (non-voting)\n- barbican-tempest-plugin-simple-crypto 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GitWeb","url":"https://opendev.org/openstack/nova/commit/926ac87a92af987be9bc306a919b137db2cb3b04"}]}],"author":{"name":"minwooseo","email":"alsdn1211@naver.com","date":"2026-08-05 14:23:14.000000000","tz":540},"committer":{"name":"minwooseo","email":"alsdn1211@naver.com","date":"2026-08-05 14:23:14.000000000","tz":540},"subject":"libvirt: Add volume migration bandwidth option to nova.conf","message":"libvirt: Add volume migration bandwidth option to nova.conf\n\nWhen an attached volume is retyped with migration or migrated to a\ndifferent Cinder backend, Cinder may create a destination volume and\nask Nova to replace the volume attached to the running instance.\n\nFor these Nova-assisted migrations, the libvirt driver connects the\ndestination volume, copies the guest-visible data from the source\nvolume using virDomainBlockCopy, and then pivots the instance to the\ndestination volume.\n\nNova currently starts the block copy job without specifying a bandwidth\nlimit. Libvirt therefore performs the copy with unlimited bandwidth.\nA large volume migration can consume the available storage or network\nbandwidth and affect I/O from other instances on the compute host.\n\nAdd the [libvirt] volume_migration_bandwidth option so operators can\nconfigure a default bandwidth limit for these block copy jobs. The\nvalue is specified in MiB/s and converted to bytes per second before it\nis passed to libvirt.\n\nThe configured limit is applied independently to each applicable block\ncopy job started by nova-compute. It is not an aggregate bandwidth cap\nfor all concurrent migration jobs on the compute host. A value of 0\npreserves the existing unlimited behavior.\n\nThis option applies to Nova-assisted migration of an attached volume\nduring an on-demand retype or migration to another Cinder backend. It\ndoes not apply to an in-place retype or a migration performed entirely\nby the Cinder storage backend. This change does not add a per-operation\nAPI or CLI override.\n\nDocImpact\nImplements: blueprint libvirt-volume-migration-bandwidth\n\nChange-Id: Ic8c58c25f5ff84d88338aa6f59739d9e1ff8dcc5\nSigned-off-by: minwooseo \u003calsdn1211@naver.com\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/0a6c9cb5d9cc5bce8592ffa4d98c39df6a5fbe45"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/0a6c9cb5d9cc5bce8592ffa4d98c39df6a5fbe45"}]},"branch":"refs/heads/master"},"e4752381859552235c669b8688b7bfab6e8083b3":{"kind":"REWORK","_number":2,"created":"2026-08-05 15:28:03.000000000","uploader":{"_account_id":34539,"name":"minwoo seo","email":"alsdn1211@naver.com","username":"minwooseo"},"ref":"refs/changes/41/999841/2","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/nova","ref":"refs/changes/41/999841/2","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/nova refs/changes/41/999841/2 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/nova refs/changes/41/999841/2 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/nova refs/changes/41/999841/2 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/nova refs/changes/41/999841/2"}}},"commit":{"parents":[{"commit":"926ac87a92af987be9bc306a919b137db2cb3b04","subject":"Merge \"doc: Document postcopy incompatibility with vGPU live migration\"","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/926ac87a92af987be9bc306a919b137db2cb3b04"}]}],"author":{"name":"minwooseo","email":"alsdn1211@naver.com","date":"2026-08-05 14:23:14.000000000","tz":540},"committer":{"name":"minwooseo","email":"alsdn1211@naver.com","date":"2026-08-05 15:27:14.000000000","tz":540},"subject":"libvirt: Add volume migration bandwidth option to nova.conf","message":"libvirt: Add volume migration bandwidth option to nova.conf\n\nWhen an attached volume is retyped with migration or migrated to a\ndifferent Cinder backend, Cinder may create a destination volume and\nask Nova to replace the volume attached to the running instance.\n\nFor these Nova-assisted migrations, the libvirt driver connects the\ndestination volume, copies the guest-visible data from the source\nvolume using virDomainBlockCopy, and then pivots the instance to the\ndestination volume.\n\nNova currently starts the block copy job without specifying a bandwidth\nlimit. Libvirt therefore performs the copy with unlimited bandwidth.\nA large volume migration can consume the available storage or network\nbandwidth and affect I/O from other instances on the compute host.\n\nAdd the [libvirt] volume_migration_bandwidth option so operators can\nconfigure a default bandwidth limit for these block copy jobs. The\nvalue is specified in MiB/s and converted to bytes per second before it\nis passed to libvirt.\n\nThe configured limit is applied independently to each applicable block\ncopy job started by nova-compute. It is not an aggregate bandwidth cap\nfor all concurrent migration jobs on the compute host. A value of 0\npreserves the existing unlimited behavior.\n\nThis option applies to Nova-assisted migration of an attached volume\nduring an on-demand retype or migration to another Cinder backend. It\ndoes not apply to an in-place retype or a migration performed entirely\nby the Cinder storage backend. This change does not add a per-operation\nAPI or CLI override.\n\nDocImpact\nImplements: blueprint libvirt-volume-migration-bandwidth\n\nChange-Id: Ic8c58c25f5ff84d88338aa6f59739d9e1ff8dcc5\nSigned-off-by: minwooseo \u003calsdn1211@naver.com\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/e4752381859552235c669b8688b7bfab6e8083b3"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/e4752381859552235c669b8688b7bfab6e8083b3"}]},"branch":"refs/heads/master"},"df681850d96aac71cde96d0240af8a32015f1ef9":{"kind":"REWORK","_number":3,"created":"2026-08-06 13:27:30.000000000","uploader":{"_account_id":34539,"name":"minwoo seo","email":"alsdn1211@naver.com","username":"minwooseo"},"ref":"refs/changes/41/999841/3","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/nova","ref":"refs/changes/41/999841/3","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/nova refs/changes/41/999841/3 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/nova refs/changes/41/999841/3 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/nova refs/changes/41/999841/3 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/nova refs/changes/41/999841/3"}}},"commit":{"parents":[{"commit":"926ac87a92af987be9bc306a919b137db2cb3b04","subject":"Merge \"doc: Document postcopy incompatibility with vGPU live migration\"","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/926ac87a92af987be9bc306a919b137db2cb3b04"}]}],"author":{"name":"minwooseo","email":"alsdn1211@naver.com","date":"2026-08-05 14:23:14.000000000","tz":540},"committer":{"name":"minwooseo","email":"alsdn1211@naver.com","date":"2026-08-06 13:27:20.000000000","tz":540},"subject":"libvirt: Add volume migration bandwidth option to nova.conf","message":"libvirt: Add volume migration bandwidth option to nova.conf\n\nWhen an attached volume is retyped with migration or migrated to a\ndifferent Cinder backend, Cinder may create a destination volume and\nask Nova to replace the volume attached to the running instance.\n\nFor these Nova-assisted migrations, the libvirt driver connects the\ndestination volume, copies the guest-visible data from the source\nvolume using virDomainBlockCopy, and then pivots the instance to the\ndestination volume.\n\nNova currently starts the block copy job without specifying a bandwidth\nlimit. Libvirt therefore performs the copy with unlimited bandwidth.\nA large volume migration can consume the available storage or network\nbandwidth and affect I/O from other instances on the compute host.\n\nAdd the [libvirt] volume_migration_bandwidth option so operators can\nconfigure a default bandwidth limit for these block copy jobs. The\nvalue is specified in MiB/s and converted to bytes per second before it\nis passed to libvirt.\n\nThe configured limit is applied independently to each applicable block\ncopy job started by nova-compute. It is not an aggregate bandwidth cap\nfor all concurrent migration jobs on the compute host. A value of 0\npreserves the existing unlimited behavior.\n\nThis option applies to Nova-assisted migration of an attached volume\nduring an on-demand retype or migration to another Cinder backend. It\ndoes not apply to an in-place retype or a migration performed entirely\nby the Cinder storage backend. This change does not add a per-operation\nAPI or CLI override.\n\nDocImpact\nImplements: blueprint libvirt-volume-migration-bandwidth\n\nChange-Id: Ic8c58c25f5ff84d88338aa6f59739d9e1ff8dcc5\nSigned-off-by: minwooseo \u003calsdn1211@naver.com\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/df681850d96aac71cde96d0240af8a32015f1ef9"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/df681850d96aac71cde96d0240af8a32015f1ef9"}]},"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":""}}}]}