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From "Christopher Smith (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ZOOKEEPER-2873) print error and/or abort on invalid server definition
Date Thu, 10 Aug 2017 21:38:00 GMT
Christopher Smith created ZOOKEEPER-2873:
--------------------------------------------

             Summary: print error and/or abort on invalid server definition
                 Key: ZOOKEEPER-2873
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2873
             Project: ZooKeeper
          Issue Type: Improvement
          Components: server
    Affects Versions: 3.4.10
            Reporter: Christopher Smith
            Priority: Minor


While bringing up a new cluster, I managed to fat-finger a sed script and put some lines like
this into my config file:

{code}
server.1=zookeeper1:2888:2888
{code}

This led to a predictable spew of error messages when the client and election components fought
over the single port. Since a configuration of this case is *always* an error, I suggest that
it would be sensible to abort the server startup if an entry is found with the same port for
both client and election. (Logging the error explicitly without shutting down is less helpful
because of how fast the logs pile up.)



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