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with the same UUID even if one is soft deleted because\nthe deleted column is not part of that unique index constraint.\n\nThis is a problem with ironic nodes where the node is 1:1 with\nthe compute node record, and when a node is undergoing maintenance\nthe driver doesn\u0027t return it from get_available_nodes() so the\nComputeManager.update_available_resource periodic task (soft)\ndeletes the compute node record, but when the node is no longer\nunder maintenance in ironic and the driver reports it, the\nResourceTracker._init_compute_node code will fail to create the\nComputeNode record again because of the duplicate uuid.\n\nThis change handles the DBDuplicateEntry error in compute_node_create\nby finding the soft-deleted compute node with the same uuid and\nsimply updating it to no longer be (soft) deleted.\n\nCloses-Bug: #1839560\n\nChange-Id: Iafba419fe86446ffe636721f523fb619f8f787b3\n(cherry picked from commit 8b007266f438ec0a5a797d05731cce6f2b155f4c)\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/aa21f87040cf688b7093ff6d96797ea5c3c6fafd"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/aa21f87040cf688b7093ff6d96797ea5c3c6fafd"}]},"branch":"refs/heads/stable/stein"},"1b021665281b74c865d3571fc90772b52d70e467":{"kind":"REWORK","_number":2,"created":"2019-08-15 16:03:55.000000000","uploader":{"_account_id":6873,"name":"Matt Riedemann","email":"mriedem.os@gmail.com","username":"mriedem"},"ref":"refs/changes/09/676509/2","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/nova","ref":"refs/changes/09/676509/2","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/nova refs/changes/09/676509/2 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/nova refs/changes/09/676509/2 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/nova refs/changes/09/676509/2 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/nova refs/changes/09/676509/2"}}},"commit":{"parents":[{"commit":"e7109d43d6d6db0f9db18976585f3334d2be72bf","subject":"Add functional regression recreate test for bug 1839560","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/e7109d43d6d6db0f9db18976585f3334d2be72bf"}]}],"author":{"name":"Matt Riedemann","email":"mriedem.os@gmail.com","date":"2019-08-12 18:39:16.000000000","tz":-240},"committer":{"name":"Matt Riedemann","email":"mriedem.os@gmail.com","date":"2019-08-15 16:03:31.000000000","tz":-240},"subject":"Restore soft-deleted compute node with same uuid","message":"Restore soft-deleted compute node with same uuid\n\nThere is a unique index on the compute_nodes.uuid column which\nmeans we can\u0027t have more than one compute_nodes record in the\nsame DB with the same UUID even if one is soft deleted because\nthe deleted column is not part of that unique index constraint.\n\nThis is a problem with ironic nodes where the node is 1:1 with\nthe compute node record, and when a node is undergoing maintenance\nthe driver doesn\u0027t return it from get_available_nodes() so the\nComputeManager.update_available_resource periodic task (soft)\ndeletes the compute node record, but when the node is no longer\nunder maintenance in ironic and the driver reports it, the\nResourceTracker._init_compute_node code will fail to create the\nComputeNode record again because of the duplicate uuid.\n\nThis change handles the DBDuplicateEntry error in compute_node_create\nby finding the soft-deleted compute node with the same uuid and\nsimply updating it to no longer be (soft) deleted.\n\nCloses-Bug: #1839560\n\nChange-Id: Iafba419fe86446ffe636721f523fb619f8f787b3\n(cherry picked from commit 8b007266f438ec0a5a797d05731cce6f2b155f4c)\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/1b021665281b74c865d3571fc90772b52d70e467"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/1b021665281b74c865d3571fc90772b52d70e467"}]},"branch":"refs/heads/stable/stein"}},"requirements":[],"submit_records":[],"submit_requirements":[]}