在 PredictionIO 应用程序中获取总事件时出错

Question

我是 PredictionIO 的新手，使用版本 v0.11-incubating（spark - 2.6.1，Hbase - 1.2.6，ElasticSearch - 5.2.1）。使用 ./pio-start-all 启动预测服务器并检查 pio status 这些都工作正常。然后我创建了一个应用程序 'testApp' 并将一些事件导入到该 PredictionIO 应用程序中。现在为了验证导入事件的计数，我运行以下命令：

pio-shell --with-spark
import org.apache.predictionio.data.store.PEventStore
val eventsRDD = PEventStore.find(appName="testApp")(sc)

我收到错误：

ERROR Storage$: Error initializing storage client for source ELASTICSEARCH
java.lang.ClassNotFoundException: elasticsearch.StorageClient
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at org.apache.predictionio.data.storage.Storage$.getClient(Storage.scala:228)
    at org.apache.predictionio.data.storage.Storage$.org$apache$predictionio$data$storage$Storage$$updateS2CM(Storage.scala:254)
    at org.apache.predictionio.data.storage.Storage$$anonfun$sourcesToClientMeta.apply(Storage.scala:215)
    at org.apache.predictionio.data.storage.Storage$$anonfun$sourcesToClientMeta.apply(Storage.scala:215)
    at scala.collection.mutable.MapLike$class.getOrElseUpdate(MapLike.scala:189)
    at scala.collection.mutable.AbstractMap.getOrElseUpdate(Map.scala:91)
    at org.apache.predictionio.data.storage.Storage$.sourcesToClientMeta(Storage.scala:215)
    at org.apache.predictionio.data.storage.Storage$.getDataObject(Storage.scala:284)
    at org.apache.predictionio.data.storage.Storage$.getDataObjectFromRepo(Storage.scala:269)
    at org.apache.predictionio.data.storage.Storage$.getMetaDataApps(Storage.scala:387)
    at org.apache.predictionio.data.store.Common$.appsDb$lzycompute(Common.scala:27)
    at org.apache.predictionio.data.store.Common$.appsDb(Common.scala:27)
    at org.apache.predictionio.data.store.Common$.appNameToId(Common.scala:32)
    at org.apache.predictionio.data.store.PEventStore$.find(PEventStore.scala:71)
    at $line19.$read$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:28)
    at $line19.$read$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:33)
    at $line19.$read$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:35)
    at $line19.$read$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:37)
    at $line19.$read$$iwC$$iwC$$iwC$$iwC.<init>(<console>:39)
    at $line19.$read$$iwC$$iwC$$iwC.<init>(<console>:41)
    at $line19.$read$$iwC$$iwC.<init>(<console>:43)
    at $line19.$read$$iwC.<init>(<console>:45)
    at $line19.$read.<init>(<console>:47)
    at $line19.$read$.<init>(<console>:51)
    at $line19.$read$.<clinit>(<console>)
    at $line19.$eval$.<init>(<console>:7)
    at $line19.$eval$.<clinit>(<console>)
    at $line19.$eval.$print(<console>)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:1065)
    at org.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1346)
    at org.apache.spark.repl.SparkIMain.loadAndRunReq(SparkIMain.scala:840)
    at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:871)
    at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:819)
    at org.apache.spark.repl.SparkILoop.reallyInterpret(SparkILoop.scala:857)
    at org.apache.spark.repl.SparkILoop.interpretStartingWith(SparkILoop.scala:902)
    at org.apache.spark.repl.SparkILoop.command(SparkILoop.scala:814)
    at org.apache.spark.repl.SparkILoop.processLine(SparkILoop.scala:657)
    at org.apache.spark.repl.SparkILoop.innerLoop(SparkILoop.scala:665)
    at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$loop(SparkILoop.scala:670)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process.apply$mcZ$sp(SparkILoop.scala:997)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process.apply(SparkILoop.scala:945)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process.apply(SparkILoop.scala:945)
    at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135)
    at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$process(SparkILoop.scala:945)
    at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:1059)
    at org.apache.spark.repl.Main$.main(Main.scala:31)
    at org.apache.spark.repl.Main.main(Main.scala)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:731)
    at org.apache.spark.deploy.SparkSubmit$.doRunMain(SparkSubmit.scala:181)
    at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:206)
    at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:121)
    at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
org.apache.predictionio.data.storage.StorageClientException: Data source ELASTICSEARCH was not properly initialized.
    at org.apache.predictionio.data.storage.Storage$$anonfun.apply(Storage.scala:285)
    at org.apache.predictionio.data.storage.Storage$$anonfun.apply(Storage.scala:285)
    at scala.Option.getOrElse(Option.scala:120)
    at org.apache.predictionio.data.storage.Storage$.getDataObject(Storage.scala:284)
    at org.apache.predictionio.data.storage.Storage$.getDataObjectFromRepo(Storage.scala:269)
    at org.apache.predictionio.data.storage.Storage$.getMetaDataApps(Storage.scala:387)
    at org.apache.predictionio.data.store.Common$.appsDb$lzycompute(Common.scala:27)
    at org.apache.predictionio.data.store.Common$.appsDb(Common.scala:27)
    at org.apache.predictionio.data.store.Common$.appNameToId(Common.scala:32)
    at org.apache.predictionio.data.store.PEventStore$.find(PEventStore.scala:71)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:28)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:33)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:35)
    at $iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:37)
    at $iwC$$iwC$$iwC$$iwC.<init>(<console>:39)
    at $iwC$$iwC$$iwC.<init>(<console>:41)
    at $iwC$$iwC.<init>(<console>:43)
    at $iwC.<init>(<console>:45)
    at <init>(<console>:47)
    at .<init>(<console>:51)
    at .<clinit>(<console>)
    at .<init>(<console>:7)
    at .<clinit>(<console>)
    at $print(<console>)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:1065)
    at org.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1346)
    at org.apache.spark.repl.SparkIMain.loadAndRunReq(SparkIMain.scala:840)
    at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:871)
    at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:819)
    at org.apache.spark.repl.SparkILoop.reallyInterpret(SparkILoop.scala:857)
    at org.apache.spark.repl.SparkILoop.interpretStartingWith(SparkILoop.scala:902)
    at org.apache.spark.repl.SparkILoop.command(SparkILoop.scala:814)
    at org.apache.spark.repl.SparkILoop.processLine(SparkILoop.scala:657)
    at org.apache.spark.repl.SparkILoop.innerLoop(SparkILoop.scala:665)
    at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$loop(SparkILoop.scala:670)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process.apply$mcZ$sp(SparkILoop.scala:997)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process.apply(SparkILoop.scala:945)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process.apply(SparkILoop.scala:945)
    at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135)
    at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$process(SparkILoop.scala:945)
    at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:1059)
    at org.apache.spark.repl.Main$.main(Main.scala:31)
    at org.apache.spark.repl.Main.main(Main.scala)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:731)
    at org.apache.spark.deploy.SparkSubmit$.doRunMain(SparkSubmit.scala:181)
    at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:206)
    at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:121)
    at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

我已经通过pio status和ElasticSearch健康命令验证弹性搜索服务器是运行。有人可以告诉我如何解决这个问题吗？

Answer 1

通过将 predictionIO 版本从 0.11.0 -> 0.12.0 升级解决了这个问题

在 PredictionIO 应用程序中获取总事件时出错

Error in getting Total Events in a PredictionIO App

apache-spark

elasticsearch

predictionio