[MNG-6361] Multithreaded Build hangs for 10+ Minutes, then resumes

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 3.5.2
• Component/s: Core
• Environment: Ubuntu 16.04 LTS, Oracle JDK 1.8.0_162 (dev machine) ; Debian 8.10, Oracle JDK 1.8.0_141 (CI server)
• Assignee: Robert Scholte
• Reporter: Marco Gablowsky
• Created: 16/Feb/18 07:58
• Updated: 16/Feb/18 10:41
• Resolved: 16/Feb/18 10:41

Description

After updating to Maven 3.5.2 we noticed increased build times in our scheduled Nightly Builds. The logs schow gaps of 10-15 minutes where the build just hangs.

Our Build reactor contains 154 modules and we are running multithreaded builds (-T 4)

The attached threaddump file was taken from a hanging build on a developer machine running 'clean install' goals. The CI Server runs the same build but with 'clean deploy'.

Issue Links

• duplicates: MNG-6323 Deadlock in multithreaded dependency resolution