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Posted to dev@flink.apache.org by "Truong Duc Kien (JIRA)" <ji...@apache.org> on 2018/03/15 09:47:00 UTC
[jira] [Created] (FLINK-8949) Rest API failure with long URL
Truong Duc Kien created FLINK-8949:
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Summary: Rest API failure with long URL
Key: FLINK-8949
URL: https://issues.apache.org/jira/browse/FLINK-8949
Project: Flink
Issue Type: Bug
Components: REST, Webfrontend
Affects Versions: 1.4.2
Reporter: Truong Duc Kien
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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