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epriestley ccff47682f Provide more useful guidance if a repository is clusterized into an existing multi-device cluster
Summary:
Fixes T12087. When transitioning into a clustered configuration for the first time, the documentation recommends using a one-device cluster as a transitional step.

However, installs may not do this for whatever reason, and we aren't as clear as we could be in warning about clusterizing directly into a multi-device cluster.

Roughly, when you do this, we end up believing that working copies exist on several different devices, but have no information about which copy or copies are up to date. //Usually// they all were already synchronized and are all up to date, but we can't make this assumption safely without risking data.

Instead, we err on the side of caution, and require a human to tell us which copy we should consider to be up-to-date, using `bin/repository thaw --promote`.

Test Plan:
```
$ ./bin/repository clusterize rLOCKS --service repos001.phacility.net
Service "repos001.phacility.net" is actively bound to more than one device
(local002.local, local001.phacility.net).

If you clusterize a repository onto this service it will be unclear which
devices have up-to-date copies of the repository. This leader/follower
ambiguity will freeze the repository. You may need to manually promote a
device to unfreeze it. See "Ambiguous Leaders" in the documentation for
discussion.

    Continue anyway? [y/N]
```

Read other changes.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12087

Differential Revision: https://secure.phabricator.com/D17169
2017-01-10 12:45:55 -08:00
bin Remove most of the legacy hunk code 2016-12-13 14:34:36 -08:00
conf Support "ssl.chain" in Aphlict configuration 2016-04-14 10:41:21 -07:00
externals Backport fix from php-mime-mail-parser to fix attachment parsing 2016-09-21 15:04:20 -07:00
resources Force 'changes' to a string in hunk migration 2017-01-10 12:28:09 -08:00
scripts Remove most of the legacy hunk code 2016-12-13 14:34:36 -08:00
src Provide more useful guidance if a repository is clusterized into an existing multi-device cluster 2017-01-10 12:45:55 -08:00
support Don't combine automatic output compression with "Content-Length" 2016-12-13 14:25:49 -08:00
webroot Make JX.Tooltip more conservative about positioning 2017-01-05 16:03:25 -08:00
.arcconfig Set "history.immutable" to "false" explicitly in .arcconfig 2016-08-03 08:12:49 -07:00
.arclint Begin adding test coverage to GitHub Events API parsers 2016-03-09 09:30:07 -08:00
.arcunit Use the configuration driven unit test engine 2015-08-11 07:57:11 +10:00
.editorconfig Fix text lint issues 2015-02-12 07:00:13 +11:00
.gitignore Make i18n string extraction faster and more flexible 2016-07-04 10:23:30 -07:00
LICENSE Fix text lint issues 2015-02-12 07:00:13 +11:00
NOTICE Update Phabricator NOTICE file to reflect modern legal circumstances 2014-06-25 13:42:13 -07:00
README.md Remove push to IRC from "readme.md" too 2015-10-24 18:39:16 -07:00

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