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https://issues.apache.org/jira/browse/FLINK-4098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15344559#comment-15344559
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Geoffrey Mon commented on FLINK-4098:
-------------------------------------
See
https://github.com/GEOFBOT/flink/commit/2af2a0febb7b53dcf8208bc5cc947d3abccad2b6
I am able to use iterations from Python, but for some reason Flink iterations
don't work with the Python version of {{.map()}} (and presumably other Python
DataSet operations as well, though I haven't tried them yet). I can run
iterations that do nothing, but when I add a simple map function like {{lambda
val: val + 1}} the Flink job hangs indefinitely on the {{.map()}} iteration
operation without any visible error messages. Python iterations also work if I
hardcode a Java {{.map()}} into {{applyBulkIterationOperation()}} instead of
using the Python {{.map()}}.
> Iteration support in Python API
> -------------------------------
>
> Key: FLINK-4098
> URL: https://issues.apache.org/jira/browse/FLINK-4098
> Project: Flink
> Issue Type: New Feature
> Components: Python API
> Affects Versions: 1.0.2
> Reporter: Geoffrey Mon
> Priority: Minor
>
> Bulk and delta iterations are not supported in the Python API. Currently
> working on this at https://github.com/GEOFBOT/flink
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