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https://issues.apache.org/jira/browse/FLINK-7856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16348259#comment-16348259
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ASF GitHub Bot commented on FLINK-7856:
---------------------------------------
Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/5397#discussion_r165290983
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/dispatcher/Dispatcher.java
---
@@ -358,6 +361,18 @@ public void start() throws Exception {
}
}
+ @Override
+ public CompletableFuture<Optional<OperatorBackPressureStats>>
getOperatorBackPressureStats(
--- End diff --
I think `Optional` is not serializable. We should always return
serializable objects as the result of a RPC.
> Port JobVertexBackPressureHandler to REST endpoint
> --------------------------------------------------
>
> Key: FLINK-7856
> URL: https://issues.apache.org/jira/browse/FLINK-7856
> Project: Flink
> Issue Type: Sub-task
> Components: Distributed Coordination, REST, Webfrontend
> Reporter: Fang Yong
> Assignee: Gary Yao
> Priority: Major
>
> Port JobVertexBackPressureHandler to REST endpoint
--
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