[GitHub] dgrove-oss opened a new issue #2874: explore using zookeeper as persistent store for dynamic invokerId assignment

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dgrove-oss opened a new issue #2874: explore using zookeeper as persistent store for dynamic invokerId assignment
URL: https://github.com/apache/incubator-openwhisk/issues/2874
 
 
   After thinking about the dev-list discussion on degrees of persistent stores for the OpenWhisk control plane [1], I think redis is not sufficient for the state for invokerIds.  We really want the assignment of ids to survive pretty much any partial failure of the control plane.  So zookeeper is the best match in terms of the persistence levels it support.  The interactions with the store happen only once per invoker instance during its startup, so we can afford the higher latency of zookeeper.   
   
   This issue is to track using zookeeper instead of redis to store the mapping from invoker names to invoker ids and the counter for the next available invoker id.
   
   [1]  http://mail-archives.apache.org/mod_mbox/incubator-openwhisk-dev/201710.mbox/%3CC10A4CFB-F08B-45D9-A98F-C1150AD465DF%40adobe.com%3E

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