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https://issues.apache.org/jira/browse/FLINK-5227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15715220#comment-15715220
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Fabian Hueske commented on FLINK-5227:
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We cannot shade Calcite at the moment due to issues with the Scala compiler.
See FLINK-4864 and PR [#2673|https://github.com/apache/flink/pull/2673]
> Add warning to include flink-table in job fat jars
> --------------------------------------------------
>
> Key: FLINK-5227
> URL: https://issues.apache.org/jira/browse/FLINK-5227
> Project: Flink
> Issue Type: Improvement
> Components: Documentation, Table API & SQL
> Affects Versions: 1.2.0, 1.1.3
> Reporter: Fabian Hueske
> Fix For: 1.2.0, 1.1.4
>
>
> {{flink-table}} depends on Apache Calcite which includes a JDBC Driver that
> prevents classloaders from being collected. This is a known issue with
> {{java.sqlDriverManager}} and can eventually cause OOME Permgen Taskmanager
> failures.
> The current workaround is to not include {{flink-table}} in the fat job JAR.
> Instead the {{flink-table}} jar files should be added to the {{lib}} folder
> of the TaskManagers.
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