[ https://issues.apache.org/jira/browse/JCR-2746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Thomas Mueller resolved JCR-2746. --------------------------------- Resolution: Fixed > Sleep in possibly endless loop in ObservationDispatcher > ------------------------------------------------------- > > Key: JCR-2746 > URL: https://issues.apache.org/jira/browse/JCR-2746 > Project: Jackrabbit Content Repository > Issue Type: Bug > Components: jackrabbit-core, observation > Affects Versions: 2.0.0, 2.1.0, 2.1.1 > Reporter: Jukka Zitting > Assignee: Thomas Mueller > Fix For: 2.2.0 > > Attachments: TestObservationEndlessLoop.java > > > The rate-limitation code we added in JCR-2402 to prevent the observation > queue from growing too large was a good idea, but the current implementation > is a bit troublesome since it blocks the thread while it still holds the > journal lock, the SISM reader lock, and the SessionState lock. This can cause > a deadlock under heavy workloads if any of the observation listeners attempts > to reuse the session (not recommended/supported, but can still happen) or > write to the repository (quite likely). > To solve this problem we should move the rate-limiter code to outside the > scope of any internal locks. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.