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https://issues.apache.org/jira/browse/FLINK-15211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16994118#comment-16994118
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Yadong Xie commented on FLINK-15211:
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Hi [~faaronzheng]
this bug has been fixed via https://issues.apache.org/jira/browse/FLINK-8949
> Web UI request url for watermark is too long in large parallelism
> -----------------------------------------------------------------
>
> Key: FLINK-15211
> URL: https://issues.apache.org/jira/browse/FLINK-15211
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Web Frontend
> Affects Versions: 1.9.0, 1.9.1
> Reporter: fa zheng
> Priority: Major
> Fix For: 1.10.0
>
>
> In large parallelism scenario, the request url to get watermark metric seems
> to too long to get response. The request url is:
> [http://0.0.0.0:8081/jobs/:jobid/vertices/:vertexid/metrics?get=0.currentInputWatermark,......,1199.currentInputWatermark]
> The reason is :
> org.apache.flink.shaded.netty4.io.netty.handler.codec.TooLongFrameException:
> An HTTP line is larger than 4096 bytes.
>
> It needs to paginate requests and merge the results.
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