Feature/aws setup - [WIP]

[dos65]

This is working implementation of built-in integration with EMR. Cluster configuration may be placed into context settings(examples) and mist can dynamically spawn EMR-clusters.

This requires introduces new mini-submodules:

• agent - simple application for running on EMR master node to guarantee shutdown cluster in case if mist instance was stopped
• aws-init-setup - performs initial AWS environment setup(creates if necessary roles, security groups, ssh keys) + generates mist config with this information

This branch is ready for preview and already published here + cloudformation template.

What's left:

• [ ] handle context updates in a more elegant way. Not every update should lead to starting a new cluster. Some setting of emr and ours could be updated on working cluster(maxJobs, instanceCount)
• [ ] http api for workers was commented. need to reimplement it's.
• [ ] rest api for clusters
• [ ] provide a way to put several worker-runners into launcher-settings section and allow contexts to use them
• [ ] provide a way to configure manual-launcher - the similar like we have for workers

[Avik1993]

Hi @dos65 i was trying out this patch, but on starting job with required context, its failing with

ERROR 2020-05-09T11:59:33.324 [d5400064-2e35-413b-8b17-32261d930310] FailedEvent with Error:
 java.lang.RuntimeException: Context is broken
    at io.hydrosphere.mist.master.execution.JobActor$$anonfun$io$hydrosphere$mist$master$execution$JobActor$$initial$1.applyOrElse(JobActor.scala:59)
    at akka.actor.Actor$class.aroundReceive(Actor.scala:517)
    at io.hydrosphere.mist.master.execution.JobActor.akka$actor$Timers$$super$aroundReceive(JobActor.scala:24)
    at akka.actor.Timers$class.aroundReceive(Timers.scala:44)
    at io.hydrosphere.mist.master.execution.JobActor.aroundReceive(JobActor.scala:24)
    at akka.actor.ActorCell.receiveMessage(ActorCell.scala:527)
    at akka.actor.ActorCell.invoke(ActorCell.scala:496)
    at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257)
    at akka.dispatch.Mailbox.run(Mailbox.scala:224)
    at akka.dispatch.Mailbox.exec(Mailbox.scala:234)
    at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
    at akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
    at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
    at akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.lang.RuntimeException: Unknown settings name default_emr for ctx root_emr_ctx
    at io.hydrosphere.mist.master.execution.ClustersService$$anon$1.start(ClustersService.scala:46)
    at io.hydrosphere.mist.master.execution.ExecutionService$$anonfun$2$$anonfun$3.apply(ExecutionService.scala:119)
    at io.hydrosphere.mist.master.execution.ExecutionService$$anonfun$2$$anonfun$3.apply(ExecutionService.scala:119)
    at io.hydrosphere.mist.master.execution.ContextFrontend.io$hydrosphere$mist$master$execution$ContextFrontend$$gotoStartingConnector(ContextFrontend.scala:345)
    at io.hydrosphere.mist.master.execution.ContextFrontend$$anonfun$awaitRequest$1.applyOrElse(ContextFrontend.scala:70)
    at akka.actor.Actor$class.aroundReceive(Actor.scala:517)
    at io.hydrosphere.mist.master.execution.ContextFrontend.akka$actor$Timers$$super$aroundReceive(ContextFrontend.scala:39)
    at akka.actor.Timers$class.aroundReceive(Timers.scala:44)
    at io.hydrosphere.mist.master.execution.ContextFrontend.aroundReceive(ContextFrontend.scala:39)
    ... 9 more

I have kept the conf folder same as present in the release, just modified the context to pick up emr_ctx context instead of default.

Any pointers?

[blvp]

Could you please show your context.conf here? I think there might be some issues with that.

[Avik1993]

Hi @blvp Thanks for reply.

I am using following config:

model = Context
name = emr_ctx
data {
  launchData {
    type = "aws-emr",
    launcherSettingsName = "default_emr"
    releaseLabel = "emr-5.17.0"
    instances = [
      {
         instanceGroupType = "master"
         instanceType = "m4.large"
         name = "my-master"
         instanceCount = 1
         market = "onDemand"
      },
      {
         instanceGroupType = "core"
         instanceType = "m4.large"
         name = "my-core"
         instanceCount = 2
         market = "spot"
         bidPrice = "0.035"
      }
    ]
  }
  maxJobs = 1
  maxConnFailures = 1
  workerMode = "exclusive"
  precreated = false
  sparkConf {
    spark.executor.instances = 2
    spark.submit.deployMode = "cluster"
    spark.master = "yarn"
    spark.executor.memory = "1G"
    spark.executor.cores = 2
  }
  downtime = "1200s"
  streamingDuration = "1s"
}

and using 20func.conf as follows:

model = Function
name = hello-mist-scala
data {
    path = hello-mist-scala_0.0.1.jar
    class-name = "HelloMist$"
    #  context = default
    context = emr_ctx
    # context = emr_autoscale_ctx
}

This is creating the function correctly and picking up the required context as well but fails on triggering the function with above error.

[blvp]

Thank you. I will keep you in the loop. Also, could you please join gitter, so we communicate there istead of PR :)

[Avik1993]

Yes @blvp! Thanks

[Avik1993]

Hey @blvp @dos65 Did you guys get a chance to look at this error?