我正在使用Scala / sbt浏览以下示例：
Flink/Elasticsearch/Kibana
Flink 教程
我的built.sbt包括以下版本：
libraryDependencies ++= Seq(
"org.apache.flink" %% "flink-scala" % "1.3.1" % "provided",
"org.apache.flink" %% "flink-streaming-scala" % "1.3.1" % "provided",
"org.apache.flink" %% "flink-clients" % "1.3.1" % "provided",
"joda-time" % "joda-time" % "2.9.9",
"com.google.guava" % "guava" % "22.0",
"com.typesafe" % "config" % "1.3.0",
"org.apache.flink" % "flink-connector-kafka-0.10_2.10" % "1.2.0",
"org.elasticsearch" % "elasticsearch" % "5.5.1",
"org.elasticsearch.client" % "transport" % "5.5.1",
"org.apache.flink" % "flink-connector-elasticsearch5_2.10" % "1.3.1"
)
程序失败，出现以下异常(减法(：
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.lang.NoSuchMethodError: org.elasticsearch.action.bulk.BulkProcessor.add(Lorg/elasticsearch/action/ActionRequest;)Lorg/elasticsearch/action/bulk/BulkProcessor;
at org.apache.flink.streaming.connectors.elasticsearch.BulkProcessorIndexer.add(BulkProcessorIndexer.java:52)
at org.aj.flink.stream.TaxiDashboard$MyElasticsearchInserter.process(TaxiDashboard.scala:157)
at org.aj.flink.stream.TaxiDashboard$MyElasticsearchInserter.process(TaxiDashboard.scala:137)
at org.apache.flink.streaming.connectors.elasticsearch.ElasticsearchSinkBase.invoke(ElasticsearchSinkBase.java:282)
at org.apache.flink.streaming.api.operators.StreamSink.processElement(StreamSink.java:41)
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:528)
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:503)
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:483)
at org.apache.flink.streaming.runtime.tasks.OperatorChain$BroadcastingOutputCollector.collect(OperatorChain.java:575)
以下是我的相关导入：
import org.apache.flink.streaming.connectors.elasticsearch5.ElasticsearchSink
import org.apache.flink.streaming.connectors.elasticsearch.{ElasticsearchSinkFunction, RequestIndexer}
import org.elasticsearch.action.index.IndexRequest
import org.elasticsearch.client.Requests
这是MyElasticsearchInserter的代码：
final class MyElasticsearchInserter(index: String, mappingType: String)
extends ElasticsearchSinkFunction[(Int, Long, (Float, Float), Short)] {
def process(element: (Int, Long, (Float, Float), Short),
ctx: RuntimeContext,
indexer: RequestIndexer): Unit = {
// construct JSON document to index
val json = Map(
"time" -> element._2.toString,
"location" -> (element._3._1 + "," + element._3._2),
"cnt" -> element._4.toString
)
val rqst: IndexRequest = Requests.indexRequest
.index(index)
.`type`(mappingType)
.source(json.asJava)
indexer.add(rqst)
}
}
下面是用于添加接收器的代码：
if (writeToElasticsearch) {
// write to Elasticsearch
nycRides.addSink(new ElasticsearchSink(esConfig,
esTransport, new MyElasticsearchInserter("nyc-idx", "popular-locations")))
}
看起来问题是flink 1.3.1是否可以与elasticsearch 5.5.1一起使用？找不到以下方法？
Caused by: java.lang.NoSuchMethodError: org.elasticsearch.action.bulk.BulkProcessor.add(Lorg/elasticsearch/action/ActionRequest;)Lorg/elasticsearch/action/bulk/BulkProcessor;
at org.apache.flink.streaming.connectors.elasticsearch.BulkProcessorIndexer.add(BulkProcessorIndexer.java:52)
at org.aj.flink.stream.TaxiDashboard$MyElasticsearchInserter.process(TaxiDashboard.scala:157)
多谢
在快速浏览了 ES 代码库之后，我认为他们在5.2.0中删除了该方法(BulkProcessor#add(ActionRequest)(。
Flink 在内部使用这种方法。不幸的是，我担心 Flink 连接器现在无法与 ES 5.3+ 连接器一起使用。