Dockerfile build fails on `livy-server` step

[brunolnetto]

Hi,

I try host locally this solution for apache spark on its language flavors with command run docker build -t livy-ci dev/docker/livy-dev-base/. After some installation steps, the error log appers on terminal. I attempt on Linux Ubuntu 20.04.

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Livy Project Parent POM ............................ SUCCESS [01:26 min]
[INFO] livy-api ........................................... SUCCESS [03:30 min]
[INFO] livy-client-common ................................. SUCCESS [  4.819 s]
[INFO] livy-test-lib ...................................... SUCCESS [  2.996 s]
[INFO] multi-scala-project-root ........................... SUCCESS [  1.042 s]
[INFO] livy-core-parent ................................... SUCCESS [  0.177 s]
[INFO] livy-core_2.11 ..................................... SUCCESS [  9.340 s]
[INFO] livy-rsc ........................................... SUCCESS [ 50.358 s]
[INFO] livy-repl-parent ................................... SUCCESS [ 25.652 s]
[INFO] livy-repl_2.11 ..................................... SUCCESS [04:05 min]
[INFO] livy-server ........................................ FAILURE [ 48.405 s]
[INFO] livy-assembly ...................................... SKIPPED
[INFO] livy-client-http ................................... SKIPPED
[INFO] livy-scala-api-parent .............................. SKIPPED
[INFO] livy-scala-api_2.11 ................................ SKIPPED
[INFO] livy-integration-test .............................. SKIPPED
[INFO] livy-coverage-report ............................... SKIPPED
[INFO] livy-examples ...................................... SKIPPED
[INFO] livy-python-api .................................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 11:26 min
[INFO] Finished at: 2023-06-22T21:17:57+00:00
[INFO] Final Memory: 108M/1364M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project livy-server: Could not resolve dependencies for project org.apache.livy:livy-server:jar:0.8.0-incubating-SNAPSHOT: Failed to collect dependencies at io.dropwizard.metrics:metrics-healthchecks:jar:3.1.0: Failed to read artifact descriptor for io.dropwizard.metrics:metrics-healthchecks:jar:3.1.0: Could not transfer artifact io.dropwizard.metrics:metrics-healthchecks:pom:3.1.0 from/to central (https://repo1.maven.org/maven2): Connection reset -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :livy-server

[mvanderlee]

I'm running into the same issue. These are 2 failing tests:

BatchSessionSpec:                                                                                                                                                                                                                                                                 
A Batch process                                                                                                                                                                                                                                                                   
- should create a process *** FAILED *** (1 second, 30 milliseconds)                                                                                                                                                                                                              
  false was not true (BatchSessionSpec.scala:94)

BatchServletSpec:
Batch Servlet
- should create and tear down a batch *** FAILED *** (1 second, 118 milliseconds)
  false was not true (BatchServletSpec.scala:121)

[mvanderlee]

@brunolnetto I found the issue. The tests include Python2 code that doesn't work in Python3. i.e: print "hello world" instead of print("hello world")

The fix is to write the lines for Python3: https://github.com/apache/incubator-livy/blob/master/server/src/test/scala/org/apache/livy/server/batch/BatchSessionSpec.scala#L51 https://github.com/apache/incubator-livy/blob/master/server/src/test/scala/org/apache/livy/server/batch/BatchServletSpec.scala#L46

[brunolnetto]

Noice! Someone should notify Apache, Python 2 is being deprecated