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Posted to dev@zookeeper.apache.org by "Raul Gutierrez Segales (JIRA)" <ji...@apache.org> on 2015/04/21 02:24:59 UTC

[jira] [Commented] (ZOOKEEPER-2171) avoid reverse lookups in QuorumCnxManager

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-2171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14504019#comment-14504019 ] 

Raul Gutierrez Segales commented on ZOOKEEPER-2171:
---------------------------------------------------

For background/reference see:

https://issues.apache.org/jira/browse/ZOOKEEPER-1666
https://issues.apache.org/jira/browse/ZOOKEEPER-1506

> avoid reverse lookups in QuorumCnxManager
> -----------------------------------------
>
>                 Key: ZOOKEEPER-2171
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2171
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: quorum
>            Reporter: Raul Gutierrez Segales
>            Assignee: Raul Gutierrez Segales
>
> Apparently, ZOOKEEPER-107 (via a quick git-blame look) introduced a bunch of getHostName() calls in QCM. Besides the overhead, these can cause problems when mixed with failing/mis-configured DNS servers.
> It would be nice to reduce them, if that doesn't affect operational correctness. 



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