Github user SaintBacchus commented on the pull request:
https://github.com/apache/spark/pull/7255#issuecomment-119175926
@harishreedharan I had tested it out, your batch did not apply my issue
Use this command twice (both the principal is expired)
```
bin/spark-submit --class xx.KafkaWordCount --master yarn-client --principal
spark/[email protected] --keytab spark.keytab
```
The second time it will throw this exception:
```
javax.security.sasl.SaslException: GSS initiate failed [Caused by
GSSException: No valid credentials provided (Mechanism level: Failed to find
any Kerberos tgt)]
```
WordCount Code:
```scala
val ssc = StreamingContext.getOrCreate("checkpoint", ()=>
{wordCountFunction(args)})
ssc.start()
ssc.awaitTermination()
def wordCountFunction(args: Array[String]) = {
val Array(zkQuorum, group, topics, numThreads) = args
val sparkConf = new SparkConf().setAppName("KafkaWordCount")
val ssc = new StreamingContext(sparkConf, Seconds(5))
ssc.checkpoint("checkpoint")
val topicMap = topics.split(",").map((_,numThreads.toInt)).toMap
val lines = KafkaUtils.createStream(ssc, zkQuorum, group,
topicMap).map(_._2)
val words = lines.flatMap(_.split(" "))
val wordCounts = words.map(x => (x,
1L)).reduceByKey(_+_).transform(x=>x.sortByKey())
wordCounts.print()
ssc
}
```
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