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https://issues.apache.org/jira/browse/BEAM-5495?focusedWorklogId=360276&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-360276
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ASF GitHub Bot logged work on BEAM-5495:
----------------------------------------
Author: ASF GitHub Bot
Created on: 16/Dec/19 14:14
Start Date: 16/Dec/19 14:14
Worklog Time Spent: 10m
Work Description: lgajowy commented on pull request #10268: [BEAM-5495]
PipelineResources algorithm is not working in most environments
URL: https://github.com/apache/beam/pull/10268#discussion_r358254181
##########
File path:
runners/core-construction-java/src/main/java/org/apache/beam/runners/core/construction/resources/PipelineResourcesDetector.java
##########
@@ -18,10 +18,10 @@
package org.apache.beam.runners.core.construction.resources;
import java.io.Serializable;
-import java.util.List;
+import java.util.stream.Stream;
/** Interface for an algorithm detecting classpath resources for pipelines. */
public interface PipelineResourcesDetector extends Serializable {
- List<String> detect(ClassLoader classLoader);
+ Stream<String> detect(ClassLoader classLoader);
Review comment:
Stream was a better fit in case we want to do filtering outside a
`PipelineResourcesDetector` implementation class. This is already done in
`PipelineResources.java`. This way, when a detector (even a 3rd party one)
provides paths that we know we should not accept, we can easily filter them out
using stream's api and then materialize the result to a collection of our
choice (eg. List or Set - it's up to beam's developers at this point).
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Issue Time Tracking
-------------------
Worklog Id: (was: 360276)
Time Spent: 12h 40m (was: 12.5h)
> PipelineResources algorithm is not working in most environments
> ---------------------------------------------------------------
>
> Key: BEAM-5495
> URL: https://issues.apache.org/jira/browse/BEAM-5495
> Project: Beam
> Issue Type: Bug
> Components: runner-flink, runner-spark, sdk-java-core
> Reporter: Romain Manni-Bucau
> Assignee: Lukasz Gajowy
> Priority: Major
> Time Spent: 12h 40m
> Remaining Estimate: 0h
>
> Issue are:
> 1. it assumes the classloader is an URLClassLoader (not always true and java
> >= 9 breaks that as well for the app loader)
> 2. it uses loader.getURLs() which leads to including the JRE itself in the
> staged file
> Looks like this detect resource algorithm can't work and should be replaced
> by a SPI rather than a built-in and not extensible algorithm. Another valid
> alternative is to just drop that "guess" logic and force the user to set
> staged files.
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