[KARAF-4773] Leverage smart download retries from pax-url-aether 2.5.0

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.7
• Fix Version/s: 4.1.0, 4.0.8
• Component/s: karaf
• Assignee: Grzegorz Grzybek
• Reporter: Grzegorz Grzybek
• Created: 17/Oct/16 07:50
• Updated: 14/Sep/18 15:14
• Resolved: 04/Nov/16 18:01

Description

https://ops4j1.jira.com/browse/PAXURL-337 adds smart mechanism for consecutive download/resolution attempts.

For example, if org.ops4j.pax.url.mvn.repositories defines 10 repositories and 9 of them return HTTP 404 and 10th repository gives us "socket timeout", additional resolution attempt doesn't have to check those 9 repositories.

Also AbstractRetryableDownloadTask uses (by default) 9 retries. Even if this may be configured, retry task was designed for such problems as timeouts, or temporary unavailability of e.g., mvn: protocol handler. Using 9 attempts (with exponentially increasing delay) is not the right way to handle simple ArtifactNotFoundException...

Issue Links

• Is contained by: KARAF-4762 Upgrade to PaxUrl 2.5.1
• links to: GitHub Pull Request #251