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https://issues.apache.org/jira/browse/FLINK-2399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14713547#comment-14713547
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ASF GitHub Bot commented on FLINK-2399:
---------------------------------------
Github user sachingoel0101 commented on a diff in the pull request:
https://github.com/apache/flink/pull/945#discussion_r37989473
--- Diff:
flink-runtime/src/main/scala/org/apache/flink/runtime/taskmanager/TaskManager.scala
---
@@ -547,7 +552,7 @@ class TaskManager(
// successful registration. associate with the JobManager
// we disambiguate duplicate or erroneous messages, to simplify
debugging
- case AcknowledgeRegistration(_, leaderSessionID, jobManager, id,
blobPort) =>
+ case AcknowledgeRegistration(_, leaderSessionID, jobManager, id,
blobPort, jobManagerID) =>
--- End diff --
But the initial registration must have happened with
`AcknowledgeRegistration`, right? Correct me if I'm wrong.
> Fail when actor versions don't match
> ------------------------------------
>
> Key: FLINK-2399
> URL: https://issues.apache.org/jira/browse/FLINK-2399
> Project: Flink
> Issue Type: Improvement
> Components: JobManager, TaskManager
> Affects Versions: 0.9, master
> Reporter: Ufuk Celebi
> Assignee: Sachin Goel
> Priority: Minor
> Fix For: 0.10
>
>
> Problem: there can be subtle errors when actors from different Flink versions
> communicate with each other, for example when an old client (e.g. Flink 0.9)
> communicates with a new JobManager (e.g. Flink 0.10-SNAPSHOT).
> We can check that the versions match on first communication between the
> actors and fail if they don't match.
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