[Impala-ASF-CR] IMPALA-11994: Support Alluxio FileSystem

["Xiaoqing Gao (Code Review)" <ge...@cloudera.org>]

Hello Impala Public Jenkins, Xiang Yang, 

I'd like you to reexamine a change. Please visit

    http://gerrit.cloudera.org:8080/19631

to look at the new patch set (#2).

Change subject: IMPALA-11994: Support Alluxio FileSystem
......................................................................

IMPALA-11994: Support Alluxio FileSystem

This patch adds support for Alluxio FileSystem. The implementation is
similar to other FileSystem.

New flags for Alluxio:
- num_alluxio_io_threads: Number of Alluxio I/O threads. Defaults to be
  16.

Testing:
- Upload hdfs test data to an ALLUXIO bucket. Modify all locations in
  HMS DB to point to the ALLUXIO bucket. Remove some hdfs caching
  params. Run CORE tests.

Change-Id: I35247b2bcb7f13626a3ec881c33d094384f833c2
---
M be/src/runtime/io/disk-io-mgr-test.cc
M be/src/runtime/io/disk-io-mgr.cc
M be/src/runtime/io/disk-io-mgr.h
M be/src/util/hdfs-util.cc
M be/src/util/hdfs-util.h
M bin/impala-config.sh
M fe/src/main/java/org/apache/impala/catalog/HdfsTable.java
M fe/src/main/java/org/apache/impala/common/FileSystemUtil.java
M fe/src/test/java/org/apache/impala/common/FileSystemUtilTest.java
M java/executor-deps/pom.xml
M java/pom.xml
M testdata/cluster/node_templates/common/etc/hadoop/conf/core-site.xml.py
M tests/common/impala_test_suite.py
M tests/common/skip.py
M tests/custom_cluster/test_hdfs_fd_caching.py
M tests/util/filesystem_utils.py
16 files changed, 71 insertions(+), 17 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/31/19631/2
-- 
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I35247b2bcb7f13626a3ec881c33d094384f833c2
Gerrit-Change-Number: 19631
Gerrit-PatchSet: 2
Gerrit-Owner: Xiaoqing Gao <ga...@gmail.com>
Gerrit-Reviewer: Impala Public Jenkins <im...@cloudera.com>
Gerrit-Reviewer: Xiang Yang <yx...@126.com>