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https://issues.apache.org/jira/browse/DOSGI-198?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amichai Rothman updated DOSGI-198:
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Affects Version/s: (was: 1.6.0)
1.5.0
> Imported service is gone after client bundle is restarted
> ---------------------------------------------------------
>
> Key: DOSGI-198
> URL: https://issues.apache.org/jira/browse/DOSGI-198
> Project: CXF Distributed OSGi
> Issue Type: Bug
> Components: Discovery
> Affects Versions: 1.5.0
> Reporter: Amichai Rothman
> Assignee: Amichai Rothman
> Fix For: 1.6.0
>
>
> When a local bundle uses a remote (imported) service using ZooKeeper
> discovery, and the local bundle is restarted, the imported service may no
> longer be available (until the remote service bundle is also restarted).
> This may occur inconsistently due to a race condition - I've managed to
> recreate it in a debugger such that whenever I stop at some breakpoint in
> TopologyManagerImport for a few seconds the service is re-imported properly,
> but when I let it run without stalling at a breakpoint it is never imported
> after the bundle restart.
> After much investigation the root cause was found to be in the ZooKeeper
> discovery's InterfaceMonitorManager, which does not properly notify modified
> EndpointListeners of pre-discovered endpoints. When the client bundle is
> restarted, the TopologyManagerImport (which is an EndpointListener) service
> properties are modified to reflect the changing interest scope (reduce
> followed by expand of requested remote service), but due to said bug it will
> not receive a notification about the previously-known remote service
> endpoint. Since the TMI's actual un-export/re-import is done in a separate
> thread, there is a race condition of whether or not the endpoint will be
> known at the time of import, and thus it will sometimes not be re-imported.
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