GitHub user gaborgsomogyi opened a pull request:
https://github.com/apache/spark/pull/23254
[SPARK-26304][SS] Add default value to
spark.kafka.sasl.kerberos.service.name parameter
## What changes were proposed in this pull request?
spark.kafka.sasl.kerberos.service.name is an optional parameter but most of
the time value `kafka` ha to be set. As I've written in the jira the following
reasoning is behind:
* Kafka's configuration guide suggest the same value:
https://kafka.apache.org/documentation/#security_sasl_kerberos_brokerconfig
* It would be easier for spark users by providing less configuration
* Other streaming engines are doing the same
In this PR I've changed the parameter from optional to `WithDefault` and
set `kafka` as default value.
## How was this patch tested?
Available unit tests + on cluster.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gaborgsomogyi/spark SPARK-26304
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/23254.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 #23254
commit 3f56e78e45e9c983816d8222e06d33092ecb2993
Author: Gabor Somogyi
Date: 2018-12-06T15:37:35Z
[SPARK-26304][SS] Add default value to
spark.kafka.sasl.kerberos.service.name parameter
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