Sina Madani created FLINK-9586:
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Summary: Make collection sources parallelisable
Key: FLINK-9586
URL: https://issues.apache.org/jira/browse/FLINK-9586
Project: Flink
Issue Type: Wish
Components: DataSet API
Affects Versions: 1.5.0
Reporter: Sina Madani
The note in
[https://ci.apache.org/projects/flink/flink-docs-release-1.5/dev/datastream_api.html#collection-data-sources]
states that Collecitons are mainly there for testing and do not support
parallelism. I believe this to be an unnecessary assumption - I'm sure there
are plenty of use cases that already have the data they need to distribute
ready at hand. It seems strange that a fixed collection of inputs cannot be
parallelised by Flink, which would require users to write their Collections
into a text file and re-read them just to get parallelisation.
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