Github user steveloughran commented on a diff in the pull request:
https://github.com/apache/spark/pull/12004#discussion_r113749781
--- Diff: cloud/pom.xml ---
@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ~ Licensed to the Apache Software Foundation (ASF) under one or more
+ ~ contributor license agreements. See the NOTICE file distributed with
+ ~ this work for additional information regarding copyright ownership.
+ ~ The ASF licenses this file to You under the Apache License, Version 2.0
+ ~ (the "License"); you may not use this file except in compliance with
+ ~ the License. You may obtain a copy of the License at
+ ~
+ ~ http://www.apache.org/licenses/LICENSE-2.0
+ ~
+ ~ Unless required by applicable law or agreed to in writing, software
+ ~ distributed under the License is distributed on an "AS IS" BASIS,
+ ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied.
+ ~ See the License for the specific language governing permissions and
+ ~ limitations under the License.
+ -->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+ <modelVersion>4.0.0</modelVersion>
+ <parent>
+ <groupId>org.apache.spark</groupId>
+ <artifactId>spark-parent_2.11</artifactId>
+ <version>2.2.0-SNAPSHOT</version>
+ <relativePath>../pom.xml</relativePath>
+ </parent>
+
+ <artifactId>spark-hadoop-cloud_2.11</artifactId>
+ <packaging>jar</packaging>
+ <name>Spark Project Cloud Integration</name>
+ <description>
+ Contains support for cloud infrastructures, specifically the Hadoop
JARs and
+ transitive dependencies needed to interact with the infrastructures.
+
+ Any project which explicitly depends upon the spark-hadoop-cloud
artifact will get the
+ dependencies; the exact versions of which will depend upon the hadoop
version Spark was compiled
+ against.
+
+ The imports of transitive dependencies are managed to make them
consistent
+ with those of the Spark build.
+
+ WARNING: the signatures of methods in the AWS and Azure SDKs do change
between
+ versions: use exactly the same version with which the Hadoop JARs were
+ built.
+ </description>
+ <properties>
+ <sbt.project.name>hadoop-cloud</sbt.project.name>
+ </properties>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.hadoop</groupId>
+ <artifactId>hadoop-aws</artifactId>
+ <scope>${hadoop.deps.scope}</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.hadoop</groupId>
+ <artifactId>hadoop-openstack</artifactId>
+ <scope>${hadoop.deps.scope}</scope>
+ </dependency>
+ <!--
+ Add joda time to ensure that anything downstream which doesn't pull in
spark-hive
+ gets the correct joda time artifact, so doesn't have auth failures on
later Java 8 JVMs
+ -->
+ <dependency>
+ <groupId>joda-time</groupId>
+ <artifactId>joda-time</artifactId>
+ <scope>${hadoop.deps.scope}</scope>
+ </dependency>
+ <!-- explicitly declare the jackson artifacts desired -->
+ <dependency>
+ <groupId>com.fasterxml.jackson.core</groupId>
+ <artifactId>jackson-databind</artifactId>
+ <scope>${hadoop.deps.scope}</scope>
+ </dependency>
+ <dependency>
+ <groupId>com.fasterxml.jackson.core</groupId>
+ <artifactId>jackson-annotations</artifactId>
+ <scope>${hadoop.deps.scope}</scope>
+ </dependency>
+ <dependency>
+ <groupId>com.fasterxml.jackson.dataformat</groupId>
+ <artifactId>jackson-dataformat-cbor</artifactId>
+ <scope>${hadoop.deps.scope}</scope>
+ </dependency>
+ <!--Explicit declaration to force in Spark version into transitive
dependencies -->
+ <dependency>
+ <groupId>org.apache.httpcomponents</groupId>
+ <artifactId>httpclient</artifactId>
+ <scope>${hadoop.deps.scope}</scope>
+ </dependency>
+ <!--Explicit declaration to force in Spark version into transitive
dependencies -->
+ <dependency>
+ <groupId>org.apache.httpcomponents</groupId>
+ <artifactId>httpcore</artifactId>
+ <scope>${hadoop.deps.scope}</scope>
+ </dependency>
+ </dependencies>
+
+ <profiles>
+
+ <profile>
+ <id>hadoop-2.7</id>
--- End diff --
yes
* 2.7 adds `hadoop-azure` for `wasb:`
* 2.8 adds `hadoop-azure-datalake` for `adl:`
There's going to be an aggregate POM in trunk, `hadoop-cloud-storage`,
which declares all transitive stuff, ideally stripping down cruft we don't
need. That way if new things go in, anything pulling that JAR shouldn't have to
add new declarations. There's still the problem of transitive breakage of JARs
(i.e. Jackson)
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