Github user markgrover commented on a diff in the pull request:
https://github.com/apache/spark/pull/10953#discussion_r52360764
--- Diff:
external/kafka/src/main/scala/org/apache/spark/streaming/kafka/KafkaUtils.scala
---
@@ -610,6 +619,417 @@ object KafkaUtils {
Set(topics.asScala.toSeq: _*)
)
}
+
+ // Start - Kafka functions using the new Consumer API
+
+ def addSSLOptions(
+ kafkaParams: Map[String, String],
+ sc: SparkContext): Map[String, String] = {
+ val sparkConf = sc.getConf
+ val defaultSSLOptions = SSLOptions.parse(sparkConf, "spark.ssl", None)
+ val kafkaSSLOptions = SSLOptions.parse(sparkConf, "spark.ssl.kafka",
Some(defaultSSLOptions))
+
+ if (kafkaSSLOptions.enabled) {
+ val sslParams = Map[String, Option[_]](
+ CommonClientConfigs.SECURITY_PROTOCOL_CONFIG -> Some("SSL"),
+ SslConfigs.SSL_TRUSTSTORE_LOCATION_CONFIG ->
kafkaSSLOptions.trustStore,
+ SslConfigs.SSL_TRUSTSTORE_PASSWORD_CONFIG ->
kafkaSSLOptions.trustStorePassword,
+ SslConfigs.SSL_KEYSTORE_LOCATION_CONFIG ->
kafkaSSLOptions.keyStore,
+ SslConfigs.SSL_KEYSTORE_PASSWORD_CONFIG ->
kafkaSSLOptions.keyStorePassword,
+ SslConfigs.SSL_KEY_PASSWORD_CONFIG -> kafkaSSLOptions.keyPassword)
+ kafkaParams ++
sslParams.filter(_._2.isDefined).mapValues(_.get.toString)
+ } else {
+ kafkaParams
+ }
+
+ }
+
+ /** Make sure offsets are available in kafka, or throw an exception */
+ private def newCheckOffsets(
+ kafkaParams: Map[String, String],
+ offsetRanges: Array[OffsetRange]): Array[OffsetRange] = {
+ val kc = new NewKafkaCluster(kafkaParams)
+ try {
+ val topics = offsetRanges.map(_.topicPartition).toSet
+ val low = kc.getEarliestOffsets(topics)
+ val high = kc.getLatestOffsetsWithLeaders(topics)
+
+ val result = offsetRanges.filterNot { o =>
+ low(o.topicPartition()) <= o.fromOffset &&
+ o.untilOffset <= high(o.topicPartition()).offset
+ }
+
+ if (!result.isEmpty) {
+ throw new SparkException("Offsets not available in Kafka: " +
result.mkString(","))
+ }
+
+ offsetRanges.map { o =>
+ OffsetRange(o.topic, o.partition, o.fromOffset, o.untilOffset,
+ high(o.topicPartition()).host)
+ }
+ } finally {
+ kc.close()
+ }
+ }
+
+ /**
+ * Create a RDD from Kafka using offset ranges for each topic and
partition.
+ *
+ * @param sc SparkContext object
+ * @param kafkaParams Kafka <a
href="http://kafka.apache.org/documentation.html#configuration";>
+ * configuration parameters</a>. Requires
"bootstrap.servers"
+ * to be set with Kafka broker(s) (NOT zookeeper
servers) specified in
+ * host1:port1,host2:port2 form.
+ * @param offsetRanges Each OffsetRange in the batch corresponds to a
+ * range of offsets for a given Kafka
topic/partition
+ * @tparam K type of Kafka message key
+ * @tparam V type of Kafka message value
+ * @return RDD of (Kafka message key, Kafka message value)
+ */
+ def createNewRDD[K: ClassTag, V: ClassTag](
--- End diff --
Mario, see my comment below about new. As far as marking the previous ones
as deprecated, I don't quite feel the same way. The new consumer API is brand
new, and may take a bit to bake in (given issues like
[KAFKA-3029](issues.apache.org/jira/browse/KAFKA-3029) and
[KAFKA-3159](https://issues.apache.org/jira/browse/KAFKA-3159) are being
found). It's also currently marked as beta. So, my recommendation would not be
to deprecate the old API. It's only for those who are eager and curious to use
the new API, and especially the associated encryption and authentication
capabilities it offers, for now, in my opinion. Let me know if you differ
though.
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