Jaeho Shin created GIRAPH-904:
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Summary: Giraph can hang if host name has 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
Fix For: 1.1.0
Attachments: 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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