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Posted to dev@zookeeper.apache.org by "Dan Benediktson (JIRA)" <ji...@apache.org> on 2016/08/05 22:49:20 UTC

[jira] [Created] (ZOOKEEPER-2504) Enforce that server ids are unique in a cluster

Dan Benediktson created ZOOKEEPER-2504:
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             Summary: Enforce that server ids are unique in a cluster
                 Key: ZOOKEEPER-2504
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2504
             Project: ZooKeeper
          Issue Type: Bug
            Reporter: Dan Benediktson


The leader will happily accept connections from learners that have the same server id (i.e., due to misconfiguration). This can lead to various issues including non-unique session_ids being generated by these servers.

The leader can enforce that all learners come in with unique server IDs; if a learner attempts to connect with an id that is already in use, it should be denied.



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