Github user takezoe commented on a diff in the pull request:
https://github.com/apache/predictionio/pull/471#discussion_r220019061
--- Diff: docs/manual/source/install/index.html.md.erb ---
@@ -24,8 +24,8 @@ limitations under the License.
It is **very important** to meet the minimum version of the following
technologies that power Apache PredictionIO®.
-* Apache Hadoop 2.6.5 (optional, required only if YARN and HDFS are needed)
-* Apache Spark 1.6.3 for Hadoop 2.6
+* Apache Hadoop 2.7.3 (optional, required only if YARN and HDFS are needed)
+* Apache Spark 2.1.1 for Hadoop 2.7
--- End diff --
I coundn't find Spark 2.0 pattern in CI and default Hadoop version for
PredictionIO build is now Hadoop 2.7.3. But in `build.sbt`, Spark 2.0 is still
supported and we can specify Hadoop version as 2.6.x. What is minimum supported
versions in this case...?
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