{"action":"opened","issue":{"url":"https://api.github.com/repos/camlistore/camlistore/issues/677","labels_url":"https://api.github.com/repos/camlistore/camlistore/issues/677/labels{/name}","comments_url":"https://api.github.com/repos/camlistore/camlistore/issues/677/comments","events_url":"https://api.github.com/repos/camlistore/camlistore/issues/677/events","html_url":"https://github.com/camlistore/camlistore/issues/677","id":128347895,"number":677,"title":"union storage","user":{"login":"stephens2424","id":488895,"avatar_url":"https://avatars.githubusercontent.com/u/488895?v=3","gravatar_id":"","url":"https://api.github.com/users/stephens2424","html_url":"https://github.com/stephens2424","followers_url":"https://api.github.com/users/stephens2424/followers","following_url":"https://api.github.com/users/stephens2424/following{/other_user}","gists_url":"https://api.github.com/users/stephens2424/gists{/gist_id}","starred_url":"https://api.github.com/users/stephens2424/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/stephens2424/subscriptions","organizations_url":"https://api.github.com/users/stephens2424/orgs","repos_url":"https://api.github.com/users/stephens2424/repos","events_url":"https://api.github.com/users/stephens2424/events{/privacy}","received_events_url":"https://api.github.com/users/stephens2424/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-01-23T19:36:10Z","updated_at":"2016-01-23T19:36:10Z","closed_at":null,"body":"From `TODO`:\r\n\r\n> union storage target. sharder can be thought of a specialization of union. sharder already unions, but has a hard-coded policy of where to put new blobs. union could a library (used by sharder)  with a pluggable policy on that."}}