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From Josh Rosen <rosenvi...@gmail.com>
Subject Re: Error in invoking a custom StandaloneRecoveryModeFactory in java env (Spark v1.3.0)
Date Thu, 25 Jun 2015 06:02:26 GMT
This sounds like https://issues.apache.org/jira/browse/SPARK-7436, which
has been fixed in Spark 1.4+ and in branch-1.3 (for Spark 1.3.2).

On Wed, Jun 24, 2015 at 10:57 PM, Niranda Perera <niranda.perera@gmail.com>
wrote:

> Hi all,
>
> I'm trying to implement a custom StandaloneRecoveryModeFactory in the Java
> environment. Pls find the implementation here. [1] . I'm new to Scala,
> hence I'm trying to use Java environment as much as possible.
>
> when I start a master with spark.deploy.recoveryMode.factory property to
> be "CUSTOM", I encounter a NoSuchMethodException for my custom class's
> constructor.
> it has the following constructor.
>
>  public AnalyticsStandaloneRecoveryModeFactory(SparkConf conf,
> Serialization serializer)
>
> but from the Master, it looks for a constructor for,
> org.wso2.carbon.analytics.spark.core.util.master.AnalyticsStandaloneRecoveryModeFactory.<init>(org.apache.spark.SparkConf,
> akka.serialization.Serialization$)
>
> I see in the Spark source code for Master, that it uses reflection to get
> the custom recovery mode factory class.
>
> case "CUSTOM" =>
>         val clazz =
> Class.forName(conf.get("spark.deploy.recoveryMode.factory"))
>         val factory = clazz.getConstructor(conf.getClass,
> Serialization.getClass)
>           .newInstance(conf, SerializationExtension(context.system))
>           .asInstanceOf[StandaloneRecoveryModeFactory]
>         (factory.createPersistenceEngine(),
> factory.createLeaderElectionAgent(this))
>
> here, Serialization.getClass returns a akka.serialization.Serialization$
> object, where as my custom class's constructor
> accepts akka.serialization.Serialization object.
>
> so I would like to know,
> 1. if this happens because I'm using this in the Java environment?
> 2. what is the workaround to this?
>
> thanks
>
> Please find the full stack trace of the error below.
>
> [2015-06-25 10:59:01,095] ERROR {akka.actor.OneForOneStrategy} -
>  org.wso2.carbon.analytics.spark.core.util.master.AnalyticsStandaloneRecoveryModeFactory.<init>(org.apache.spark.SparkConf,
> akka.serialization.Serialization$)
> akka.actor.ActorInitializationException: exception during creation
> at akka.actor.ActorInitializationException$.apply(Actor.scala:164)
> at akka.actor.ActorCell.create(ActorCell.scala:596)
> at akka.actor.ActorCell.invokeAll$1(ActorCell.scala:456)
> at akka.actor.ActorCell.systemInvoke(ActorCell.scala:478)
> at akka.dispatch.Mailbox.processAllSystemMessages(Mailbox.scala:263)
> at akka.dispatch.Mailbox.run(Mailbox.scala:219)
> at
> akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:393)
> at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> at
> scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
> at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> at
> scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> Caused by: java.lang.NoSuchMethodException:
> org.wso2.carbon.analytics.spark.core.util.master.AnalyticsStandaloneRecoveryModeFactory.<init>(org.apache.spark.SparkConf,
> akka.serialization.Serialization$)
> at java.lang.Class.getConstructor0(Class.java:2810)
> at java.lang.Class.getConstructor(Class.java:1718)
> at org.apache.spark.deploy.master.Master.preStart(Master.scala:165)
> at akka.actor.Actor$class.aroundPreStart(Actor.scala:470)
> at org.apache.spark.deploy.master.Master.aroundPreStart(Master.scala:52)
> at akka.actor.ActorCell.create(ActorCell.scala:580)
> ... 9 more
>
>
>
> [1]
> https://github.com/nirandaperera/carbon-analytics/blob/spark_master_persistance/components/analytics-processors/org.wso2.carbon.analytics.spark.core/src/main/java/org/wso2/carbon/analytics/spark/core/util/master/AnalyticsStandaloneRecoveryModeFactory.java
> <https://github.com/nirandaperera/carbon-analytics/blob/spark_master_persistance/components/analytics-processors/org.wso2.carbon.analytics.spark.core/src/main/java/org/wso2/carbon/analytics/spark/core/util/master/AnalyticsStandaloneRecoveryModeFactory.java>
>
> --
> Niranda
> @n1r44 <https://twitter.com/N1R44>
> https://pythagoreanscript.wordpress.com/
>

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