Stefan Richter created FLINK-5421: ------------------------------------- Summary: Explicit restore method in Snapshotable Key: FLINK-5421 URL: https://issues.apache.org/jira/browse/FLINK-5421 Project: Flink Issue Type: Improvement Reporter: Stefan Richter Assignee: Stefan Richter
We should introduce an explicit {{restore(...)}} method to match the {{snapshot(...)}} method in this interface. Currently, restore happens implicit in backends, i.e. when state handles are provided, backends execute restore logic in their constructors. This behaviour makes it hard for backends to participate in the task's lifecycle through {{CloseableRegistry}}, because we can only register backend objects after they have been constructed. As a result, for example, all restore operations that happen in the constructor are not responsive to cancelation. When we introduce an explicit restore, we can first create a backend object, then register it, and only then run restore. -- This message was sent by Atlassian JIRA (v6.3.4#6332)