[GitHub] meisam edited a comment on issue #48: [LIVY-41] Let users access sessions by session name

[GitBox <gi...@apache.org>]

meisam edited a comment on issue #48: [LIVY-41] Let users access sessions by session name
URL: https://github.com/apache/incubator-livy/pull/48#issuecomment-458758500
 
 
   > To support multi-master HA without this feature, the only thing we need is a distributed atomic counter (which ZK offers).
   With this change, we have to enforce session names are unique across multiple masters. This makes multi-master HA more complicated.
   
   Very good point.
   One way to enforce unique session names is to write the name of the session to Zookeeper. If a second session manager tries creating a ZK node with the same node, it will fail.

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