GitHub user dongjoon-hyun opened a pull request:
https://github.com/apache/spark/pull/11920
[SPARK-14102] Block `reset` command in SparkShell
## What changes were proposed in this pull request?
Spark Shell provides an easy way to use Spark in Scala environment. This PR
adds `reset` command to a blocked list, also cleaned up according to the Scala
coding style.
```scala
scala> sc
res0: org.apache.spark.SparkContext = org.apache.spark.SparkContext@718fad24
scala> :reset
scala> sc
<console>:11: error: not found: value sc
sc
^
```
If we blocks `reset`, Spark Shell works like the followings.
```scala
scala> :reset
reset: no such command. Type :help for help.
scala> :re
re is ambiguous: did you mean :replay or :require?
```
## How was this patch tested?
Manual. Run `bin/spark-shell` and type `:reset`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dongjoon-hyun/spark SPARK-14102
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11920.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 #11920
----
commit 8b14dba491634c95c166e4011e69c14c0f839b17
Author: Dongjoon Hyun <[email protected]>
Date: 2016-03-23T20:22:02Z
[SPARK-14102] Block `reset` command in SparkShell
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