[jira] [Updated] (CURATOR-40) Curator client does cannot connect after one zookeeper host shuts down on EC2

["Andy Grove (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CURATOR-40?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Grove updated CURATOR-40:
------------------------------

    Attachment: ApacheCuratorUnknownHostTest.java

Unit test to demonstrate issue. See comments in unit test for more detailed information.
                
> Curator client does cannot connect after one zookeeper host shuts down on EC2
> -----------------------------------------------------------------------------
>
>                 Key: CURATOR-40
>                 URL: https://issues.apache.org/jira/browse/CURATOR-40
>             Project: Apache Curator
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 2.0.1-incubating
>         Environment: Ubuntu instances on Amazon EC2 using DNS host names
>            Reporter: Andy Grove
>         Attachments: ApacheCuratorUnknownHostTest.java
>
>
> We use DNS names to specify Zookeeper host names. If one of the ZK hosts shuts down or loses network connectivity we can no longer connect via Curator, even though the other ZK hosts are still running and have quorum. The issue is specific to an UnknownHostException being thrown on DNS resolution when calling the start() method on CuratorZookeeperClient.

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