Do not build xgboost with libhdfs support

.travis.yml

@@ -19,7 +19,6 @@ matrix:
 
 env:
   global:
-    - LIBHDFS_DIR=$HOME/libhdfs-dev
     - HADOOP_VERSION=2.6.0-cdh5.5.0
     - SPARK_VERSION=2.4.1
     - XGBOOST_BASE_VERSION=0.90-criteo-20190702
@@ -36,7 +35,6 @@ script:
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
         docker run
             -e XGBOOST_VERSION
-            -e LIBHDFS_DIR
             -e HADOOP_VERSION
             -e SCALA_VERSION
             -e SPARK_VERSION
@@ -46,10 +44,6 @@ script:
             /bin/bash -c "bash -xe /xgboost-jars/travis/docker.sh";
     fi
 
-cache:
-  directories:
-    - $LIBHDFS_DIR
-
 deploy:
   provider: releases
   api_key:

install_xgboost.py

@@ -5,7 +5,6 @@
 * XGBOOST_VERSION
 * SCALA_VERSION
 * SPARK_VERSION
-* LIBHDFS_DIR containing libhdfs.{so,a} and hdfs.h
 """
 
 from __future__ import print_function, unicode_literals
@@ -20,51 +19,6 @@
 if __name__ == "__main__":
     os.chdir("xgboost")
     xgboost_dir = os.getcwd()
-    maybe_makedirs(os.path.join("lib", "native"))
-    maybe_makedirs(os.path.join("lib", "include"))
-
-    libhdfs_shared = {
-        "win32": "hdfs.dll",
-        "linux": "libhdfs.so",
-        "darwin": "libhdfs.dylib"
-    }[sys.platform]
-    libhdfs_static = {
-        "win32": "hdfs.lib",
-        "linux": "libhdfs.a",
-        "darwin": "libhdfs.a"
-    }[sys.platform]
-
-    libhdfs_dir = os.environ["LIBHDFS_DIR"]
-    shutil.copy(os.path.join(libhdfs_dir, libhdfs_static),
-                os.path.join("lib", "native"))
-    shutil.copy(os.path.join(libhdfs_dir, libhdfs_shared),
-                os.path.join("lib", "native"))
-    shutil.copy(os.path.join(libhdfs_dir, "hdfs.h"), "include")
-
-    if sys.platform == "win32":
-        maybe_makedirs("bin")
-        shutil.copy(os.path.join(libhdfs_dir, "winutils.exe"), "bin")
-
-    # HACK: library name was changed in the latest version.
-    # sed_inplace("CMakeLists.txt", "dmlccore", "dmlc")
-
-    # HACK: patch FindHDFS to support Windows.
-    sed_inplace(
-        "dmlc-core/cmake/Modules/FindHDFS.cmake",
-        "libhdfs.a",
-        "${CMAKE_STATIC_LIBRARY_PREFIX}hdfs${CMAKE_STATIC_LIBRARY_SUFFIX}")
-
-    # HACK: link with static libhdfs.
-    sed_inplace(
-        "dmlc-core/CMakeLists.txt",
-        "list(APPEND dmlccore_LINKER_LIBS ${HDFS_LIBRARIES}",
-        "list(APPEND dmlccore_LINKER_LIBS ${HDFS_STATIC_LIB}")
-
-    # HACK: add missing header.
-    sed_inplace(
-        "dmlc-core/src/io/hdfs_filesys.cc",
-        "// Copyright by Contributors",
-        "#include <algorithm>")
 
     os.chdir("jvm-packages")
     run("mvn -q -B versions:set -DnewVersion=" + os.environ["XGBOOST_VERSION"])
@@ -88,8 +42,6 @@
                 "cmake ..",
                 "cmake .. -DCMAKE_BUILD_TYPE=Release ")
 
-    sed_inplace("create_jni.py", '"USE_HDFS": "OFF"', '"USE_HDFS": "ON"')
-
     run("mvn -q install -pl :xgboost4j,:xgboost4j-spark "
         "-DskipTests -Dmaven.test.skip",
         env=dict(os.environ,

travis/install.sh

@@ -1,5 +1,3 @@
 set -xe
 
-mkdir -p $LIBHDFS_DIR
-if [ ! -z `find $LIBHDFS_DIR -prune -empty` ]; then python ./install_libhdfs.py; fi
-python ./install_xgboost.py
+python ./install_xgboost.py