Github user tgravescs commented on the pull request:
https://github.com/apache/spark/pull/5095#issuecomment-85508290
>In our local network, the yarn-node do not know the hostname of the
client. So I have to set spark.driver.host to the client's ip address, so the
driver will use it's ip address in stead of hostname. But the driver's
blockmanager will still use it's hostname.
Sorry I don't follow what you mean. Are you just saying DNS is not
properly configured or when the client goes to figure out hostname it comes
back null?
If you run the linux 'hostname' command what does it list?
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