{"action":"closed","issue":{"url":"https://api.github.com/repos/magento/devdocs/issues/806","repository_url":"https://api.github.com/repos/magento/devdocs","labels_url":"https://api.github.com/repos/magento/devdocs/issues/806/labels{/name}","comments_url":"https://api.github.com/repos/magento/devdocs/issues/806/comments","events_url":"https://api.github.com/repos/magento/devdocs/issues/806/events","html_url":"https://github.com/magento/devdocs/issues/806","id":175482283,"number":806,"title":"Migration plan advises to use replicated database - what about incremental updates/changes?","user":{"login":"pascaladriaansen","id":4595279,"avatar_url":"https://avatars.githubusercontent.com/u/4595279?v=3","gravatar_id":"","url":"https://api.github.com/users/pascaladriaansen","html_url":"https://github.com/pascaladriaansen","followers_url":"https://api.github.com/users/pascaladriaansen/followers","following_url":"https://api.github.com/users/pascaladriaansen/following{/other_user}","gists_url":"https://api.github.com/users/pascaladriaansen/gists{/gist_id}","starred_url":"https://api.github.com/users/pascaladriaansen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pascaladriaansen/subscriptions","organizations_url":"https://api.github.com/users/pascaladriaansen/orgs","repos_url":"https://api.github.com/users/pascaladriaansen/repos","events_url":"https://api.github.com/users/pascaladriaansen/events{/privacy}","received_events_url":"https://api.github.com/users/pascaladriaansen/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":{"login":"xcomSteveJohnson","id":1268334,"avatar_url":"https://avatars.githubusercontent.com/u/1268334?v=3","gravatar_id":"","url":"https://api.github.com/users/xcomSteveJohnson","html_url":"https://github.com/xcomSteveJohnson","followers_url":"https://api.github.com/users/xcomSteveJohnson/followers","following_url":"https://api.github.com/users/xcomSteveJohnson/following{/other_user}","gists_url":"https://api.github.com/users/xcomSteveJohnson/gists{/gist_id}","starred_url":"https://api.github.com/users/xcomSteveJohnson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/xcomSteveJohnson/subscriptions","organizations_url":"https://api.github.com/users/xcomSteveJohnson/orgs","repos_url":"https://api.github.com/users/xcomSteveJohnson/repos","events_url":"https://api.github.com/users/xcomSteveJohnson/events{/privacy}","received_events_url":"https://api.github.com/users/xcomSteveJohnson/received_events","type":"User","site_admin":false},"assignees":[{"login":"xcomSteveJohnson","id":1268334,"avatar_url":"https://avatars.githubusercontent.com/u/1268334?v=3","gravatar_id":"","url":"https://api.github.com/users/xcomSteveJohnson","html_url":"https://github.com/xcomSteveJohnson","followers_url":"https://api.github.com/users/xcomSteveJohnson/followers","following_url":"https://api.github.com/users/xcomSteveJohnson/following{/other_user}","gists_url":"https://api.github.com/users/xcomSteveJohnson/gists{/gist_id}","starred_url":"https://api.github.com/users/xcomSteveJohnson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/xcomSteveJohnson/subscriptions","organizations_url":"https://api.github.com/users/xcomSteveJohnson/orgs","repos_url":"https://api.github.com/users/xcomSteveJohnson/repos","events_url":"https://api.github.com/users/xcomSteveJohnson/events{/privacy}","received_events_url":"https://api.github.com/users/xcomSteveJohnson/received_events","type":"User","site_admin":false}],"milestone":null,"comments":3,"created_at":"2016-09-07T11:48:08Z","updated_at":"2016-09-28T08:38:28Z","closed_at":"2016-09-28T08:38:28Z","body":"In [devdocs/guides/v2.0/migration/migration-plan.md](https://github.com/magento/devdocs/blob/develop/guides/v2.0/migration/migration-plan.md) the following is mentioned under Step 3:\r\n\r\n> To provide redundancy in the event of unexpected issues, we advise you to replicate your Magento 1.x database and use this Magento 1.x data for your migration\r\n\r\nSo, for a test migration run I replicated my production Magento 1.x database and entered the details of this replicated database in my config.xml. After some tweaking of some mapping files I got it to run the data migration step correctly, migrating all the data I wanted to migrate. \r\n\r\nNow, I wanted to try out the delta migration. If I understood correctly, the delta migration uses the m2_cl_* tables that are created after the data migration step. However, because the replicated database I used for the data migration is not connected to a Magento store, there are no incremental changes in orders, customers etc. \r\nI could, of course, connect to my production database for the delta step, but this database doesn't have the m2_cl_* tables, since this database has never been touched by the data-migration-tool.\r\n\r\nAm I misunderstanding the tip mentioned above? Should I run both data and delta migration using my live/production database or a replicated database? "}}
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