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apache / incubator-livy / ba12b51ec987e76b6b67e20f60b4326e203b03f6
commitba12b51ec987e76b6b67e20f60b4326e203b03f6[log] [tgz]
authorrunzhiwang <runzhiwang@tencent.com>Mon Oct 21 16:16:18 2019 +0800
committerjerryshao <jerryshao@tencent.com>Mon Oct 21 16:16:18 2019 +0800
treeb109dbe436fb420be897fc47080b6452db16b5c5
parent85837e381bd9899a2680cfbb30c4f76f3a113c69 [diff]
[LIVY-697] Rsc client cannot resolve the hostname of driver in yarn-cluster mode

## What changes were proposed in this pull request?

[LIVY-697] Rsc client cannot resolve the hostname of driver in yarn-cluster mode

1. The content of Driver in /etc/hosts are as follows:
   127.0.0.1 localhost
   10.10.10.10 test_hostname

2. The content of Driver in /etc/hostname are as follows:
   test_hostname

3. The findLocalAddress method in livy cannot return 10.10.10.10, but return  test_hostname.
   Because the  test_hostname point to 10.10.10.10,  which doesn't pass the check
   address.isLoopbackAddress(), so findLocalAddress return test_hostname .

4. The rsc client cannot resolve the test_hostname, which cause rsc client cannot connect to
   driver.

5. The findLocalAddress method in livy can return 10.10.10.10 as expected if the content
   of Driver in  /etc/hosts are as follows, which is not correct in our environment.
   127.0.0.1 localhost
   127.0.0.1 test_hostname

6. Though I can modify the findLocalAddress method to return 10.10.10.10, but it maybe cause
  error if the machine has multiple  network  cards.  So, rsc client gets the driver ip from the
  connection.

## How was this patch tested?

1. The content of Driver in /etc/hosts are as follows:
   127.0.0.1 localhost
   127.0.0.1 test_hostname

2. The content of Driver in /etc/hostname are as follows:
   test_hostname

3. rsc client can get the driver ip in connection, and connect to driver successfully.

Author: runzhiwang <runzhiwang@tencent.com>

Closes #246 from runzhiwang/hostname-2-ip.
1 file changed
tree: b109dbe436fb420be897fc47080b6452db16b5c5
  1. .github/
  2. api/
  3. assembly/
  4. bin/
  5. client-common/
  6. client-http/
  7. conf/
  8. core/
  9. coverage/
  10. dev/
  11. docs/
  12. examples/
  13. integration-test/
  14. python-api/
  15. repl/
  16. rsc/
  17. scala/
  18. scala-api/
  19. server/
  20. test-lib/
  21. thriftserver/
  22. .gitignore
  23. .rat-excludes
  24. .travis.yml
  25. checkstyle-suppressions.xml
  26. checkstyle.xml
  27. DISCLAIMER
  28. LICENSE
  29. NOTICE
  30. pom.xml
  31. README.md
  32. scalastyle.xml
README.md

Apache Livy

Build Status

Apache Livy is an open source REST interface for interacting with Apache Spark from anywhere. It supports executing snippets of code or programs in a Spark context that runs locally or in Apache Hadoop YARN.

  • Interactive Scala, Python and R shells
  • Batch submissions in Scala, Java, Python
  • Multiple users can share the same server (impersonation support)
  • Can be used for submitting jobs from anywhere with REST
  • Does not require any code change to your programs

Pull requests are welcomed! But before you begin, please check out the Contributing section on the Community page of our website.

Online Documentation

Guides and documentation on getting started using Livy, example code snippets, and Livy API documentation can be found at livy.incubator.apache.org.

Before Building Livy

To build Livy, you will need:

Debian/Ubuntu:

  • mvn (from maven package or maven3 tarball)
  • openjdk-8-jdk (or Oracle JDK 8)
  • Python 2.7+
  • R 3.x

Redhat/CentOS:

  • mvn (from maven package or maven3 tarball)
  • java-1.8.0-openjdk (or Oracle JDK 8)
  • Python 2.7+
  • R 3.x

MacOS:

  • Xcode command line tools
  • Oracle's JDK 1.8
  • Maven (Homebrew)
  • Python 2.7+
  • R 3.x

Required python packages for building Livy:

  • cloudpickle
  • requests
  • requests-kerberos
  • flake8
  • flaky
  • pytest

To run Livy, you will also need a Spark installation. You can get Spark releases at https://spark.apache.org/downloads.html.

Livy requires Spark 2.2+. You can switch to a different version of Spark by setting the SPARK_HOME environment variable in the Livy server process, without needing to rebuild Livy.

Building Livy

Livy is built using Apache Maven. To check out and build Livy, run:

git clone https://github.com/apache/incubator-livy.git
cd incubator-livy
mvn package

By default Livy is built against Apache Spark 2.2.0, but the version of Spark used when running Livy does not need to match the version used to build Livy. Livy internally handles the differences between different Spark versions.

The Livy package itself does not contain a Spark distribution. It will work with any supported version of Spark without needing to rebuild.