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[MINOR][DOC] Update deprecation notes on Python/Hadoop/Scala. #18207

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[MINOR][DOC] Update deprecation notes on Python/Hadoop/Scala. #18207

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8 changes: 3 additions & 5 deletions docs/index.md
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Expand Up @@ -26,15 +26,13 @@ Spark runs on both Windows and UNIX-like systems (e.g. Linux, Mac OS). It's easy
locally on one machine --- all you need is to have `java` installed on your system `PATH`,
or the `JAVA_HOME` environment variable pointing to a Java installation.

Spark runs on Java 8+, Python 2.6+/3.4+ and R 3.1+. For the Scala API, Spark {{site.SPARK_VERSION}}
Spark runs on Java 8+, Python 2.7+/3.4+ and R 3.1+. For the Scala API, Spark {{site.SPARK_VERSION}}
uses Scala {{site.SCALA_BINARY_VERSION}}. You will need to use a compatible Scala version
({{site.SCALA_BINARY_VERSION}}.x).

Note that support for Java 7 was removed as of Spark 2.2.0.
Note that support for Java 7, Python 2.6 and old Hadoop versions before 2.6.5 were removed as of Spark 2.2.0.
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@srowen srowen Jun 6, 2017

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It sounds like 2.6 is still more supported than not-support in 2.2.x, but we should call it unsupported for 2.3.x.

Let's say that Python 2.6 support was really removed for 2.3.0, rather than 2.2.0.
It's fine to add a note about Hadoop before 2.6 being unsupported in 2.2.0, that's true.

Then we can merge in master. It's not essential to merge this for 2.2 as the existing text appears to be not-wrong.

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@dongjoon-hyun dongjoon-hyun Jun 6, 2017

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Did you test on Python 2.6 at RC4 testing? And it happens to be supported at 2.2.0?
Actually, Jenkins does not run the tests over two months (since 29th Mar). As @JoshRosen said, there is no guard anymore in order to guarantee still more supported on 2.2.1 or later.


Note that support for Python 2.6 is deprecated as of Spark 2.0.0, and support for
Scala 2.10 and versions of Hadoop before 2.6 are deprecated as of Spark 2.1.0, and may be
removed in Spark 2.2.0.
Note that support for Scala 2.10 is deprecated as of Spark 2.1.0, and may be removed in Spark 2.3.0.

# Running the Examples and Shell

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