[jira] [Reopened] (GIRAPH-904) Giraph can hang when hostnames include uppercase letters

["Jaeho Shin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GIRAPH-904?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jaeho Shin reopened GIRAPH-904:
-------------------------------

Okay, looks like the patch was incomplete.  Let's find where else needs to be fixed.

> Giraph can hang when hostnames include uppercase letters
> --------------------------------------------------------
>
>                 Key: GIRAPH-904
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-904
>             Project: Giraph
>          Issue Type: Bug
>          Components: bsp, conf and scripts, zookeeper
>    Affects Versions: 1.1.0
>            Reporter: Jaeho Shin
>            Assignee: Jaeho Shin
>             Fix For: 1.1.0
>
>         Attachments: GIRAPH-904.BspServiceMaster-fix.patch, GIRAPH-904.getHostname-fix.patch, GIRAPH-904.patch
>
>
> We found that Giraph jobs were consistently hanging if uppercase letters were included in the DNS (or /etc/hosts) resolved hostnames ({{foo.stanford.edu}} vs. {{foo.Stanford.EDU}} from our DNS).  Normalizing the hostnames to lower case from {{GiraphConfiguration#getLocalHostname()}} fixed our problem.



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