)]}'
{"/COMMIT_MSG":[{"author":{"_account_id":2243,"name":"John Griffith","email":"john.griffith8@gmail.com","username":"john-griffith"},"change_message_id":"baead53a8f3fb5c94b14093024ab18d4f99c2e42","unresolved":false,"context_lines":[{"line_number":6,"context_line":""},{"line_number":7,"context_line":"Add comment to online data migration command"},{"line_number":8,"context_line":""},{"line_number":9,"context_line":"One of the requirements of the online data migration command is that"},{"line_number":10,"context_line":"they must be able to be run without any Cinder service running in order"},{"line_number":11,"context_line":"to support a normal upgrade or a Fast-Forward upgrade."},{"line_number":12,"context_line":""}],"source_content_type":"text/x-gerrit-commit-message","patch_set":1,"id":"3f79a3b5_1f5daf47","line":9,"updated":"2018-09-12 18:57:22.000000000","message":"I must admit, I\u0027m slightly confused.  The online schema migration is exactly so that schema can be upgraded while the services are online no?  Also, just FYI, one of the review criteria for the patch was in fact that it include an online schema migration.  You can see the comments from Matt here [1] on October 5 (almost a year and two releases ago).\n\n1: https://review.openstack.org/#/c/509005/","commit_id":"2cd5957c5e891f0bc5cf57253c0f5e18b330e954"},{"author":{"_account_id":9535,"name":"Gorka Eguileor","email":"geguileo@redhat.com","username":"Gorka"},"change_message_id":"cd0c08875c3a9fd490d29da2551c6ee927d7c2e9","unresolved":false,"context_lines":[{"line_number":6,"context_line":""},{"line_number":7,"context_line":"Add comment to online data migration command"},{"line_number":8,"context_line":""},{"line_number":9,"context_line":"One of the requirements of the online data migration command is that"},{"line_number":10,"context_line":"they must be able to be run without any Cinder service running in order"},{"line_number":11,"context_line":"to support a normal upgrade or a Fast-Forward upgrade."},{"line_number":12,"context_line":""}],"source_content_type":"text/x-gerrit-commit-message","patch_set":1,"id":"3f79a3b5_50ebc9a2","line":9,"in_reply_to":"3f79a3b5_1f5daf47","updated":"2018-09-17 14:25:12.000000000","message":"Matt\u0027s comment refers to splitting the migration into 2 parts: schema and data, which is part of the requirements of rolling upgrades.  This means that the migration must support running with the services running, not that it can depend on them running, as this would prevent fast forward upgrades from happening.","commit_id":"2cd5957c5e891f0bc5cf57253c0f5e18b330e954"}]}