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From "Brian Nixon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-2873) print error and/or abort on invalid server definition
Date Tue, 19 Jun 2018 01:06:00 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-2873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16516514#comment-16516514
] 

Brian Nixon commented on ZOOKEEPER-2873:
----------------------------------------

With no one commenting in almost a year, this issue strikes me as fair game for anyone to
patch.

> 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
>            Assignee: Mark Fenes
>            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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