Kurt Young created FLINK-4490: --------------------------------- Summary: Decouple Slot and Instance Key: FLINK-4490 URL: https://issues.apache.org/jira/browse/FLINK-4490 Project: Flink Issue Type: Sub-task Reporter: Kurt Young
Currently, {{Slot}} and {{Instance}} holds each other. For {{Instance}} holding {{Slot}}, it makes sense because it reflects how many resources it can provide and how many are using. But it's not very necessary for {{Slot}} to hold {{Instance}} which it belongs to. It only needs to hold some connection information and gateway to talk to. Another downside for {{Slot}} holding {{Instance}} is that {{Instance}} actually contains some allocate/de-allocation logicals, it will be difficult if we want to do some allocation refactor without letting {{Slot}} noticed. We should abstract the connection information of {{Instance}} to let {{Slot}} holds. (Actually we have {{InstanceConnectionInfo}} now, but lacks of instance's akka gateway, maybe we can just adding the akka gateway to the {{InstanceConnectionInfo}}) -- This message was sent by Atlassian JIRA (v6.3.4#6332)