{"action":"created","issue":{"url":"https://api.github.com/repos/dotnet/orleans/issues/2977","repository_url":"https://api.github.com/repos/dotnet/orleans","labels_url":"https://api.github.com/repos/dotnet/orleans/issues/2977/labels{/name}","comments_url":"https://api.github.com/repos/dotnet/orleans/issues/2977/comments","events_url":"https://api.github.com/repos/dotnet/orleans/issues/2977/events","html_url":"https://github.com/dotnet/orleans/issues/2977","id":224440157,"number":2977,"title":"Observers don't recover after host restart","user":{"login":"nidu","id":434377,"avatar_url":"https://avatars0.githubusercontent.com/u/434377?v=3","gravatar_id":"","url":"https://api.github.com/users/nidu","html_url":"https://github.com/nidu","followers_url":"https://api.github.com/users/nidu/followers","following_url":"https://api.github.com/users/nidu/following{/other_user}","gists_url":"https://api.github.com/users/nidu/gists{/gist_id}","starred_url":"https://api.github.com/users/nidu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/nidu/subscriptions","organizations_url":"https://api.github.com/users/nidu/orgs","repos_url":"https://api.github.com/users/nidu/repos","events_url":"https://api.github.com/users/nidu/events{/privacy}","received_events_url":"https://api.github.com/users/nidu/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2017-04-26T11:48:20Z","updated_at":"2017-05-01T15:10:15Z","closed_at":null,"body":"Hello.\r\n\r\nOrleans 1.3.1.\r\n\r\nI have asp net MVC web app which subscribes to Orleans grain via [observers](https://dotnet.github.io/orleans/Documentation/Getting-Started-With-Orleans/Observers.html). If i restart host - grain becomes accessible and methods can be invoked but observers are not notified anymore.\r\n\r\nShould they recover automatically or should some configuration be done or is there some easy way to track grain availability to manually refresh subscriptions?"},"comment":{"url":"https://api.github.com/repos/dotnet/orleans/issues/comments/298351002","html_url":"https://github.com/dotnet/orleans/issues/2977#issuecomment-298351002","issue_url":"https://api.github.com/repos/dotnet/orleans/issues/2977","id":298351002,"user":{"login":"sergeybykov","id":8248806,"avatar_url":"https://avatars2.githubusercontent.com/u/8248806?v=3","gravatar_id":"","url":"https://api.github.com/users/sergeybykov","html_url":"https://github.com/sergeybykov","followers_url":"https://api.github.com/users/sergeybykov/followers","following_url":"https://api.github.com/users/sergeybykov/following{/other_user}","gists_url":"https://api.github.com/users/sergeybykov/gists{/gist_id}","starred_url":"https://api.github.com/users/sergeybykov/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sergeybykov/subscriptions","organizations_url":"https://api.github.com/users/sergeybykov/orgs","repos_url":"https://api.github.com/users/sergeybykov/repos","events_url":"https://api.github.com/users/sergeybykov/events{/privacy}","received_events_url":"https://api.github.com/users/sergeybykov/received_events","type":"User","site_admin":false},"created_at":"2017-05-01T15:10:15Z","updated_at":"2017-05-01T15:10:15Z","body":">If i restart host \r\n\r\nDo you mean you restart silos?\r\n\r\nIf you restart the whole cluster, then the registration of client observers will be lost. Unlike grains, client observers aren't virtual, and cannot be automatically reactivated after a restart."}}
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