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https://issues.apache.org/jira/browse/FLINK-15503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17111956#comment-17111956
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Robert Metzger commented on FLINK-15503:
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Yes, I can do that.
The reason why I ran the tests w/o your fix was to make sure we can reproduce
the issue. I suspect that the docker or linux kernel setup is causing the
network instabilities with maven dependency downloads, S3 Filesystem tests, and
various other network related tests.
This is the first case where we are able to somehow manually trigger a network
instability on our CI setup.
Even if your timeout configs are resolving this particular issue, it would be
nice to understand what the underlying cause of the issue is to fix it for the
entire CI system (in particular maven, where we can afaik not control all
networking parameters ourselves)
> FileUploadHandlerTest.testMixedMultipart and FileUploadHandlerTest.
> testUploadCleanupOnUnknownAttribute failed on Azure
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-15503
> URL: https://issues.apache.org/jira/browse/FLINK-15503
> Project: Flink
> Issue Type: Bug
> Components: Runtime / REST, Tests
> Affects Versions: 1.10.0
> Reporter: Till Rohrmann
> Priority: Critical
> Labels: test-stability
> Fix For: 1.10.0
>
>
> The tests {{FileUploadHandlerTest.testMixedMultipart}} and
> {{FileUploadHandlerTest. testUploadCleanupOnUnknownAttribute}} failed on
> Azure with
> {code}
> 2020-01-07T09:32:06.9840445Z [ERROR]
> testUploadCleanupOnUnknownAttribute(org.apache.flink.runtime.rest.FileUploadHandlerTest)
> Time elapsed: 12.457 s <<< ERROR!
> 2020-01-07T09:32:06.9850865Z java.net.SocketTimeoutException: timeout
> 2020-01-07T09:32:06.9851650Z at
> org.apache.flink.runtime.rest.FileUploadHandlerTest.testUploadCleanupOnUnknownAttribute(FileUploadHandlerTest.java:234)
> 2020-01-07T09:32:06.9852910Z Caused by: java.net.SocketException: Socket
> closed
> 2020-01-07T09:32:06.9853465Z at
> org.apache.flink.runtime.rest.FileUploadHandlerTest.testUploadCleanupOnUnknownAttribute(FileUploadHandlerTest.java:234)
> 2020-01-07T09:32:06.9853855Z
> 2020-01-07T09:32:06.9854362Z [ERROR]
> testMixedMultipart(org.apache.flink.runtime.rest.FileUploadHandlerTest) Time
> elapsed: 10.091 s <<< ERROR!
> 2020-01-07T09:32:06.9855125Z java.net.SocketTimeoutException: Read timed out
> 2020-01-07T09:32:06.9855652Z at
> org.apache.flink.runtime.rest.FileUploadHandlerTest.testMixedMultipart(FileUploadHandlerTest.java:154)
> 2020-01-07T09:32:06.9856034Z
> {code}
> https://dev.azure.com/rmetzger/Flink/_build/results?buildId=4159&view=results
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