[MINOR] Fix typos in comments and testcase name of code

[dongjoon-hyun]

What changes were proposed in this pull request?

This PR fixes typos in comments and testcase name of code.

How was this patch tested?

manual.

[dongjoon-hyun]

Since it's not about documents and contains testcase name typo, so I couldn't choose DOCS as component name.

[sarutak]

ok to test.

[rxin]

LGTM pending tests

[dongjoon-hyun]

Thank you, @sarutak and @rxin !

[dongjoon-hyun]

Hi, @sarutak and @rxin .

WithAggregationKinesisBackedBlockRDDSuite took about 2 hours and still is running.
The following is the last part of Jenkins logs. It seems abnormal. Could you trigger another test run please?

[info] WithAggregationKinesisBackedBlockRDDSuite:
Using endpoint URL https://kinesis.us-west-2.amazonaws.com for creating Kinesis streams for tests.
[2016-03-02 18:39:50.670894] [0x00007f2565bb6700] [info] [kinesis_producer.cc:79] Created pipeline for stream "KinesisTestUtils-2198454940508828809"
[2016-03-02 18:39:50.671040] [0x00007f2565bb6700] [info] [shard_map.cc:83] Updating shard map for stream "KinesisTestUtils-2198454940508828809"
[2016-03-02 18:39:50.929527] [0x00007f25647b4700] [info] [shard_map.cc:163] Successfully updated shard map for stream "KinesisTestUtils-2198454940508828809" found 2 shards
[info] - Basic reading from Kinesis (2 seconds, 186 milliseconds)
[info] - Read data available in both block manager and Kinesis (77 milliseconds)

[SparkQA]

Test build #2604 has started for PR 11481 at commit dd43417.

[dongjoon-hyun]

Oh, thank you for re-triggering.

[sarutak]

@dongjoon-hyun Once a commiter trigger a test, you can trigger another one by yourself in the same PR by saying like "retest this please" .

[dongjoon-hyun]

Thank you for your advice!
Is the magic word of a committer Jenkins, test this please and ok to test then?

[SparkQA]

Test build #52348 has finished for PR 11481 at commit dd43417.

• This patch fails from timeout after a configured wait of 250m.
• This patch merges cleanly.
• This patch adds no public classes.

[dongjoon-hyun]

Hi, @sarutak and @rxin .
three builds hanged at the same test WithAggregationKinesisBackedBlockRDDSuite.
The first build fails due to timeout, the others seems to fail with the same reason.

I'm not sure this is the case for the followings? Or, any other reason?

1. File a JIRA issue for WithAggregationKinesisBackedBlockRDDSuite
2. Pass the test by removing the typo fix on Kinesis-related files
   • KinesisBackedBlockRDDSuite.scala
   • KinesisReceiverSuite.scala

I think it is out of this PR's scope to fix WithAggregationKinesisBackedBlockRDDSuite.

[SparkQA]

Test build #52369 has finished for PR 11481 at commit dd43417.

• This patch fails from timeout after a configured wait of 250m.
• This patch merges cleanly.
• This patch adds no public classes.

[srowen]

Jenkins, test this please

[SparkQA]

Test build #52389 has finished for PR 11481 at commit dd43417.

• This patch fails from timeout after a configured wait of 250m.
• This patch merges cleanly.
• This patch adds no public classes.

[srowen]

Yeah, I'm certain it's not this PR as it only changes a test name in the kinesis module. Something's wrong with the tests there. I'm not sure what do with this one; unless someone knows the problem and is fixing it, we can maybe just avoid fixing the files in kinesis and sort out the test separately

[SparkQA]

Test build #2608 has started for PR 11481 at commit dd43417.

[dongjoon-hyun]

Thank you for confirming. I'll avoid that in this PR.

[dongjoon-hyun]

retest this please.

[SparkQA]

Test build #52402 has finished for PR 11481 at commit 3cffee2.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[dongjoon-hyun]

Finally, it passed.
I filed the Kinesis issue as SPARK-13655, too.

[srowen]

Merged to master

[dongjoon-hyun]

Thank you, @srowen !