| Subject: Problems with ZooDiscovery |
Author: Robert Lechner |
Date: Tue, 16 December 2014 15:04 |
I managed to use the ECF generic server to run an OSGi remote service. This works fine, even when client and server are located on different machines.
Now I want to use ZooKeeper as a centralized service registry as described in wiki.eclipse.org/Zoodiscovery
My problem is now, that the IDiscoveryLocator on the client side never returns any services. I debugged the code and found the following situation:
ZooDiscovery runs on the client in a separate thread and gets the services from ZooKeeper. This is done in org.eclipse.ecf.provider.zookeeper.node.internal.NodeReader.processResult(); also a log is written. The service info is stored in org.eclipse.ecf.provider.zookeeper.node.internal.ReadRoot.discoverdServices
The IDiscoveryLocator (implemented by org.eclipse.ecf.provider.zookeeper.core.ZooDiscoveryContainer) delegates to org.eclipse.ecf.provider.zookeeper.node.internal.WatchManager.getAllKnownServices(), but this map is always empty.
My questions is: how are WatchManager and ReadRoot connected?
I attached logs for ZooKeeper, server and client.
In the client log you can see a line with "Service Discovered" in it; this shows that the client thread got the service information from ZooKeeper.
I'm using Luna Service Release 1 (4.4.1) with Java 8 and ECF 3.9.0
Thank you!
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Attachment: client.log
(Size: 3.90KB, Downloaded 0 times) |
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Attachment: server.log
(Size: 3.53KB, Downloaded 0 times) |
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Attachment: zookeeper.log
(Size: 5.79KB, Downloaded 0 times) |
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