[SLING-4061] Deadlock involving discovery services at startup with Oak

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Cannot Reproduce
• Component/s: Extensions
• Assignee: Unassigned
• Reporter: Bertrand Delacretaz
• Created: 15/Oct/14 15:02
• Updated: 07/Oct/15 09:15
• Resolved: 07/Oct/15 07:14

Description

I just got a deadlock at startup when starting the launchpad integration tests instance on sling trunk revision 1632058 (so starting with Oak):

export DBG="-Xmx1G  -XX:MaxPermSize=256m -agentlib:jdwp=transport=dt_socket,address=30303,server=y,suspend=n"
export MAVEN_OPTS="-Xmx1G  -XX:MaxPermSize=256m $DBG -Dsling.run.modes=oak"
cd launchpad/testing
mvn launchpad:run

I'll attach the stack trace. The discovery HeartbeatHandler, and DiscoveryServiceImpl classes are involved.

The deadlock happens often on my box (macosx 10.9.5, java version "1.7.0_45"), with the same deadlock pattern AFAICS.

Issue Links

• blocks: SLING-2788 Optionally run Sling on Apache OAK