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ASF GitHub Bot commented on FLINK-4490: --------------------------------------- Github user tillrohrmann commented on a diff in the pull request: https://github.com/apache/flink/pull/2447#discussion_r77309411 --- Diff: flink-mesos/src/main/scala/org/apache/flink/mesos/runtime/clusterframework/MesosTaskManager.scala --- @@ -19,20 +19,19 @@ package org.apache.flink.mesos.runtime.clusterframework import org.apache.flink.runtime.clusterframework.types.ResourceID -import org.apache.flink.runtime.instance.InstanceConnectionInfo import org.apache.flink.runtime.io.disk.iomanager.IOManager import org.apache.flink.runtime.io.network.NetworkEnvironment import org.apache.flink.runtime.leaderretrieval.LeaderRetrievalService import org.apache.flink.runtime.memory.MemoryManager -import org.apache.flink.runtime.taskmanager.{TaskManager, TaskManagerConfiguration} +import org.apache.flink.runtime.taskmanager.{TaskManager, TaskManagerConfiguration, TaskManagerLocation} /** An extension of the TaskManager that listens for additional Mesos-related * messages. */ class MesosTaskManager( config: TaskManagerConfiguration, resourceID: ResourceID, - connectionInfo: InstanceConnectionInfo, + connectionInfo: TaskManagerLocation, --- End diff -- Shall we rename the variable accordingly? > Decouple Slot and Instance > -------------------------- > > Key: FLINK-4490 > URL: https://issues.apache.org/jira/browse/FLINK-4490 > Project: Flink > Issue Type: Sub-task > Components: Distributed Coordination > Reporter: Kurt Young > Fix For: 1.2.0 > > > 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)