GitHub user ueshin opened a pull request:
https://github.com/apache/spark/pull/22132
[SPARK-25142][PYSPARK] Add error messages when Python worker could not open
socket in `_load_from_socket`.
## What changes were proposed in this pull request?
Sometimes Python worker can't open socket in `_load_from_socket` for some
reason, but it's difficult to figure out the reason because the exception
doesn't even contain the messages from `socket.error`s.
We should at least add the error messages when raising the exception.
## How was this patch tested?
Manually in my local environment.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ueshin/apache-spark
issues/SPARK-25142/socket_error
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/22132.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #22132
commit 16b4f72a3f15c1f5b84b33dcdb4cb8ec980f6bb5
Author: Takuya UESHIN
Date: 2018-08-17T09:59:28Z
Add error messages when Python worker could not open socket in
`_load_from_socket`.
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