{"action":"created","issue":{"url":"https://api.github.com/repos/apache/flink/issues/3536","repository_url":"https://api.github.com/repos/apache/flink","labels_url":"https://api.github.com/repos/apache/flink/issues/3536/labels{/name}","comments_url":"https://api.github.com/repos/apache/flink/issues/3536/comments","events_url":"https://api.github.com/repos/apache/flink/issues/3536/events","html_url":"https://github.com/apache/flink/pull/3536","id":214120739,"number":3536,"title":"[FLINK-6048] Asynchronous snapshots for heap-based OperatorStateBackend","user":{"login":"StefanRRichter","id":2128543,"avatar_url":"https://avatars1.githubusercontent.com/u/2128543?v=3","gravatar_id":"","url":"https://api.github.com/users/StefanRRichter","html_url":"https://github.com/StefanRRichter","followers_url":"https://api.github.com/users/StefanRRichter/followers","following_url":"https://api.github.com/users/StefanRRichter/following{/other_user}","gists_url":"https://api.github.com/users/StefanRRichter/gists{/gist_id}","starred_url":"https://api.github.com/users/StefanRRichter/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/StefanRRichter/subscriptions","organizations_url":"https://api.github.com/users/StefanRRichter/orgs","repos_url":"https://api.github.com/users/StefanRRichter/repos","events_url":"https://api.github.com/users/StefanRRichter/events{/privacy}","received_events_url":"https://api.github.com/users/StefanRRichter/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2017-03-14T16:01:22Z","updated_at":"2017-04-24T12:12:30Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/apache/flink/pulls/3536","html_url":"https://github.com/apache/flink/pull/3536","diff_url":"https://github.com/apache/flink/pull/3536.diff","patch_url":"https://github.com/apache/flink/pull/3536.patch"},"body":"This PR introduces asynchronous snapshots for the heap-based `DefaultOperatorStateBackend`. Compared to the asynchronous snapshots for the heap-based keyed state backend, this implementation is rather simple and eagerly generates a deep in-memory copy of the state before running the asynchronous part of the snapshot that writes to the filesystem.\r\n\r\nNote that this PR should later sit on top of PR #3483 and piggyback on the async-flag that was introduced. It also benefits from the improved ArrayListTypeSerializer.\r\n\r\nFurthermore, we could have a followup that actually parallelizes checkpointing the different async backends in `AsyncCheckpointRunnable`. Previously, this was not needed because there have only been keyed state backends o those have been the only async backends."},"comment":{"url":"https://api.github.com/repos/apache/flink/issues/comments/296642078","html_url":"https://github.com/apache/flink/pull/3536#issuecomment-296642078","issue_url":"https://api.github.com/repos/apache/flink/issues/3536","id":296642078,"user":{"login":"StefanRRichter","id":2128543,"avatar_url":"https://avatars1.githubusercontent.com/u/2128543?v=3","gravatar_id":"","url":"https://api.github.com/users/StefanRRichter","html_url":"https://github.com/StefanRRichter","followers_url":"https://api.github.com/users/StefanRRichter/followers","following_url":"https://api.github.com/users/StefanRRichter/following{/other_user}","gists_url":"https://api.github.com/users/StefanRRichter/gists{/gist_id}","starred_url":"https://api.github.com/users/StefanRRichter/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/StefanRRichter/subscriptions","organizations_url":"https://api.github.com/users/StefanRRichter/orgs","repos_url":"https://api.github.com/users/StefanRRichter/repos","events_url":"https://api.github.com/users/StefanRRichter/events{/privacy}","received_events_url":"https://api.github.com/users/StefanRRichter/received_events","type":"User","site_admin":false},"created_at":"2017-04-24T12:12:30Z","updated_at":"2017-04-24T12:12:30Z","body":"Rebased."}}
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