[jira] [Resolved] (GIRAPH-1034) Allow IPs for Worker2Worker communication

["Dionysios Logothetis (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GIRAPH-1034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dionysios Logothetis resolved GIRAPH-1034.
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    Resolution: Fixed

> Allow IPs for Worker2Worker communication
> -----------------------------------------
>
>                 Key: GIRAPH-1034
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-1034
>             Project: Giraph
>          Issue Type: Improvement
>            Reporter: Sergey Edunov
>            Assignee: Sergey Edunov
>            Priority: Major
>
> For worker2worker communication, we use O(n^2) DNS lookups, where n is the number of workers. If network infrastructure is less reliable, combined with a large number of workers, these DNS lookups occasionally fail. 
> Fortunately, we don't always need DNS lookups, as in many clusters hosts can communicate with each other directly using IP addresses. Let's add a configuration option to use IP address instead of the host name. 



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