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https://issues.apache.org/jira/browse/FLINK-8949?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gary Yao updated FLINK-8949:
----------------------------
Release Note: (was: Watermarks for tasks with a high parallelism (>160)
can now be queried and displayed correctly in the web frontend.)
> Rest API failure with long URL
> ------------------------------
>
> Key: FLINK-8949
> URL: https://issues.apache.org/jira/browse/FLINK-8949
> Project: Flink
> Issue Type: Bug
> Components: Runtime / REST, Runtime / Web Frontend
> Affects Versions: 1.4.2, 1.5.0, 1.6.4, 1.7.2, 1.8.2
> Reporter: Truong Duc Kien
> Assignee: Maximilian Michels
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.10.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> When you have jobs with high parallelism, the URL for a REST request can get
> very long. When the URL is longer than 4096 bytes, the REST API will return
> error
> {{Failure: 404 Not Found}}
> This can easily be seen in the Web UI, when Flink queries for the watermark
> using the REST API:
> {{GET
> /jobs/:jobId/vertices/:vertexId/metrics?get=0.currentLowWatermark,1.currentLowWatermark,2.currentLo...}}
> The request will fail with more than 170 subtasks and the watermark will not
> be displayed in the Web UI.
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