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Bug 351884 - Bogus download of p2 metadata for non-p2 artifacts
Summary: Bogus download of p2 metadata for non-p2 artifacts
Status: RESOLVED FIXED
Alias: None
Product: z_Archived
Classification: Eclipse Foundation
Component: Tycho (show other bugs)
Version: unspecified   Edit
Hardware: PC Linux
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Igor Fedorenko CLA
QA Contact:
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Reported: 2011-07-12 14:38 EDT by Harald Wellmann CLA
Modified: 2021-04-28 16:54 EDT (History)
2 users (show)

See Also:

Attachments
Sample product to reproduce the problem (8.75 KB, application/x-sdlc)
2011-07-12 14:39 EDT, Harald Wellmann CLA 		no flags Details
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Description Harald Wellmann CLA 2011-07-12 14:38:26 EDT 
Build Identifier: Tycho 0.13.0-SNAPSHOT

Building an eclipse-repository project including both Maven and p2 artifacts, Tycho tries to download p2 metadata for each plain old Maven dependency, which does not make sense.

The initial build takes very long, since Tycho tries each configured repository for each dependency.

Example:

Downloading: https://repository.sonatype.org/content/repositories/forge/org/apache/aries/org.apache.aries.util/0.3/org.apache.aries.util-0.3-p2metadata.xml
Downloading: http://repo1.maven.org/maven2/org/apache/aries/org.apache.aries.util/0.3/org.apache.aries.util-0.3-p2metadata.xml
Downloading: https://repository.sonatype.org/content/repositories/forge/org/apache/aries/org.apache.aries.util/0.3/org.apache.aries.util-0.3-p2artifacts.xml
Downloading: http://repo1.maven.org/maven2/org/apache/aries/org.apache.aries.util/0.3/org.apache.aries.util-0.3-p2artifacts.xml


Reproducible: Always

Steps to Reproduce:
Unpack the attached archive. (Site with 1 feature containing 1 Maven bundle).
Run mvn clean install and watch the download messages.

Delete the artifact and try again:
rm -fr ~/.m2/repository/org/apache/aries/org.apache.aries.util/
mvn clean install

Same result.
Comment 1 Harald Wellmann CLA 2011-07-12 14:39:32 EDT 
Created attachment 199523 [details]
Sample product to reproduce the problem
Comment 2 Igor Fedorenko CLA 2011-07-13 00:58:49 EDT 
Should be fixed now. Thank you for spotting this.
Comment 3 Tobias Oberlies CLA 2011-07-13 10:49:38 EDT 
This behaviour was aiming at preventing re-publishing of p2 metadata. However it has a severe performance impact for very limited gain, so the behaviour was removed.

We will need to address the re-publishing on a larger scale again, e.g. through embedding p2 metadata in artifacts. (But not as part of this bug.)
Comment 4 Harald Wellmann CLA 2011-07-14 14:27:14 EDT 
Just tested the latest snapshot, which works fine. Thanks for fixing this so quickly!