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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-5886) Python API for streaming applications
Date Wed, 14 Jun 2017 10:23:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-5886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16049018#comment-16049018

ASF GitHub Bot commented on FLINK-5886:

Github user zentol commented on the issue:

    When running the example against a local cluster i got this exception
    java.io.IOException: java.io.IOException: The given HDFS file URI (hdfs:/tmp/flink_cache_-4117839671387669278)
did not describe the HDFS NameNode. The attempt to use a default HDFS configuration, as specified
in the 'fs.hdfs.hdfsdefault' or 'fs.hdfs.hdfssite' config parameter failed due to the following
problem: Either no default file system was registered, or the provided configuration contains
no valid authority component (fs.default.name or fs.defaultFS) describing the (hdfs namenode)
host and port.

> Python API for streaming applications
> -------------------------------------
>                 Key: FLINK-5886
>                 URL: https://issues.apache.org/jira/browse/FLINK-5886
>             Project: Flink
>          Issue Type: New Feature
>          Components: Python API
>            Reporter: Zohar Mizrahi
>            Assignee: Zohar Mizrahi
> A work in progress to provide python interface for Flink streaming APIs. The core technology
is based on jython and thus imposes two limitations: a. user defined functions cannot use
python extensions. b. the python version is 2.x
> The branch is based on Flink release 1.2.0, as can be found here:
> https://github.com/zohar-pm/flink/tree/python-streaming
> In order to test it, someone can use IntelliJ IDE. Assuming IntelliJ was setup properly
(see: https://ci.apache.org/projects/flink/flink-docs-release-1.3/internals/ide_setup.html),
one can run/debug {{org.apache.flink.python.api.PythonStreamBinderTest}}, which in return
will execute all the tests under {{/Users/zohar/dev/pm-flink/flink-libraries/flink-python/src/test/python/org/apache/flink/python/api/streaming}}

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