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https://issues.apache.org/jira/browse/FLINK-2399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14740695#comment-14740695
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ASF GitHub Bot commented on FLINK-2399:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/945#discussion_r39265532
--- Diff:
flink-runtime/src/test/java/org/apache/flink/runtime/jobmanager/JobSubmitTest.java
---
@@ -192,4 +193,78 @@ public void initializeOnMaster(ClassLoader loader)
throws Exception {
fail(e.getMessage());
}
}
+
+ /**
+ * Verifies failure when the client version is lower than supported.
+ */
+ @Test
--- End diff --
You can implement the test with
`@Test(expected=JobSubmissionException.class)` which checks that the correct
exception is produced.
> 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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