David Jencks created FELIX-3891:
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Summary: [DS] synchronization around registerService can create
deadlocks
Key: FELIX-3891
URL: https://issues.apache.org/jira/browse/FELIX-3891
Project: Felix
Issue Type: Bug
Components: Declarative Services (SCR)
Affects Versions: scr-1.8.0
Reporter: David Jencks
Assignee: David Jencks
Fix For: scr-1.8.0
We've found a deadlock from the synchronization around the service
registration. This particular one comes from two threads trying to activate
the service concurrently. The losing thread came from PackageAdmin refresh
bundles thread, whereas the winning thread triggered another component creation
whose activate method calls Package admin to do some work. (this is eclipse
package admin, not sure if felix has the same problem).
Thinking about it some more I don't think we need to synchronize, it doesn't
matter which thread wins the service registration as long as it's registered
soon.
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