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https://issues.apache.org/jira/browse/FLINK-21749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17300338#comment-17300338
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Chesnay Schepler commented on FLINK-21749:
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The blob server port is likely already in use by some other process on your
machine. Either shut down that process or configure the blob server to use a
different port.
https://ci.apache.org/projects/flink/flink-docs-release-1.12/deployment/config.html#blob-server-port
> unable to use scala Shell
> -------------------------
>
> Key: FLINK-21749
> URL: https://issues.apache.org/jira/browse/FLINK-21749
> Project: Flink
> Issue Type: Bug
> Components: Deployment / Kubernetes
> Affects Versions: 1.12.0
> Environment: Debian - kubernetes
> Reporter: Bhagi
> Priority: Critical
> Fix For: 1.12.0
>
> Attachments: image-2021-03-12-19-14-13-122.png
>
>
> unable to access scala shell..observing exceptions in scala shell.
> I have attached the image. please look into this ASAP.
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