Intermittent Maven build errors - Could not resolve dependencies / Could not transfer artifact

[devinbost]

We're occasionally getting build errors that look like this:

[ERROR] Failed to execute goal on project buildtools: Could not resolve dependencies for project org.apache.pulsar:buildtools:jar:2.6.0-SNAPSHOT: Could not transfer artifact org.apache-extras.beanshell:bsh:jar:2.0b6 from/to central (https://repo.maven.apache.org/maven2): Transfer failed for https://repo.maven.apache.org/maven2/org/apache-extras/beanshell/bsh/2.0b6/bsh-2.0b6.jar 503 between bytes timeout -> [Help 1]

[ERROR] Failed to execute goal on project pulsar-presto-distribution: Could not resolve dependencies for project org.apache.pulsar:pulsar-presto-distribution:jar:2.6.0-SNAPSHOT: Could not transfer artifact org.eclipse.jetty:jetty-io:jar:9.4.11.v20180605 from/to central (https://repo.maven.apache.org/maven2): Failed to transfer file https://repo.maven.apache.org/maven2/org/eclipse/jetty/jetty-io/9.4.11.v20180605/jetty-io-9.4.11.v20180605.jar with status code 500 -> [Help 1]

Here's a third case (with an image of where it appeared):

[devinbost]

I wasn't sure if this should have been labeled as a bug or not since it's just showing up in the build tests.

[aahmed-se]

@devinbost wha's your maven version ?

[devinbost]

OCPC-LM31977:pulsar dbost$ mvn --version
Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: /Users/dbost/src/apache-maven-3.6.3
Java version: 1.8.0_201, vendor: Oracle Corporation, runtime: /Library/Java/JavaVirtualMachines/jdk1.8.0_201.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.14.6", arch: "x86_64", family: "mac"

[devinbost]

@aahmed-se

[aahmed-se]

Try with should be using 3.6.1, believe versions after that have issues

[devinbost]

@aahmed-se Thanks for the information. This was also happening in Github CI though. Is there a place where the Maven version is set for building the project in the Github CI Actions?

[aahmed-se]

where is github ci do you see this ?

[devinbost]

@aahmed-se Here's one example: https://github.com/apache/pulsar/pull/6202/checks?check_run_id=428218118

[aahmed-se]

Here is the example for setting up maven to a specific vesion

pulsar/.github/workflows/ci-license.yaml

Line 43 in 4a2bceb

- name: Set up Maven

The error in your link is not related that's just a repo timeout.

[devinbost]

@aahmed-se How do we fix the repo timeout? I got it again...
[ERROR] Failed to execute goal net.alchim31.maven:scala-maven-plugin:4.0.1:add-source (default) on project flink: Execution default of goal net.alchim31.maven:scala-maven-plugin:4.0.1:add-source failed: Plugin net.alchim31.maven:scala-maven-plugin:4.0.1 or one of its dependencies could not be resolved: Could not transfer artifact org.apache.maven:maven-compat:jar:3.3.9 from/to central (https://repo.maven.apache.org/maven2): Failed to transfer file https://repo.maven.apache.org/maven2/org/apache/maven/maven-compat/3.3.9/maven-compat-3.3.9.jar with status code 500 -> [Help 1]
(https://github.com/apache/pulsar/pull/6202/checks?check_run_id=431040196)