scalaplayframeworkplay-reactivemongo

The play app terminates for reactive mongo update operation

package models

import play.api.libs.json.{Json, OFormat}
import reactivemongo.bson.{BSONLong, BSONObjectID}

case class SavedPostOrBlog(
                          _id:Option[BSONObjectID],
                          postOrBlogId:BSONObjectID,
                          discussGroupId:Option[BSONObjectID], 
                          saverId:BSONObjectID,
                          isQPost:Option[Boolean]=None,
                          isArticle:Option[Boolean]=None, 
                          test : BSONLong = BSONLong.apply(12334)
                          )


object SavedPostOrBlogJsonFormat{



  import reactivemongo.play.json._

  implicit val spb: OFormat[SavedPostOrBlog] = Json.format[SavedPostOrBlog]

}

[error] a.a.ActorSystemImpl - Uncaught error from thread [application-dbContext-
dispatcher-37]: models.SavedPostOrBlog.<init>(Lscala/Option;Lreactivemongo/bson/BSONObjectID;Lscala/Option;Lreactivemongo/bson/BSONObjectID;Lscala/Option;Lscala/Option;)V, shutting down JVM since 'akka.jvm-exit-on-fatal-error' is enabled for ActorSystem[application]
java.lang.NoSuchMethodError: models.SavedPostOrBlog.<init>(Lscala/Option;Lreactivemongo/bson/BSONObjectID;Lscala/Option;Lreactivemongo/bson/BSONObjectID;Lscala/Option;Lscala/Option;)V
        at controllers.postActions.SavePostController.$anonfun$savePost$8(SavePostController.scala:96)
        at controllers.postActions.SavePostController.checkDGroupMemberShip(SavePostController.scala:157)
        at controllers.postActions.SavePostController.$anonfun$savePost$4(SavePostController.scala:93)
        at scala.concurrent.impl.Promise$Transformation.run(Promise.scala:433)
        at akka.dispatch.BatchingExecutor$AbstractBatch.processBatch(BatchingExecutor.scala:55)
        at akka.dispatch.BatchingExecutor$BlockableBatch.$anonfun$run$1(BatchingExecutor.scala:92)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
        at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:94)
        at akka.dispatch.BatchingExecutor$BlockableBatch.run(BatchingExecutor.scala:92)
        at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:41)
[info] p.c.s.AkkaHttpServer - Stopping server...
[info] p.m.r.DefaultReactiveMongoApi - ReactiveMongoApi stopping...
[INFO] [04/02/2020 12:49:00.178] [reactivemongo-akka.actor.default-dispatcher-12] [akka://reactivemongo/user/Connection-1] Message [reactivemongo.core.actors.ChannelDisconnected] without sender to Actor[akka://reactivemongo/user/Connection-1#1685282110] was not delivered. [1] dead letters encountered. If this is not an expected behavior, then [Actor[akka://reactivemongo/user/Connection-1#1685282110]] may have terminated unexpectedly, This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
[info] r.c.a.MongoDBSystem - [Supervisor-2/Connection-1] Stopping the MongoDBSystem
[info] p.m.r.DefaultReactiveMongoApi - ReactiveMongoApi connections are stopped
[info] r.api.Driver - [Supervisor-2] Closing instance of ReactiveMongo driver
[info] r.api.Driver - [Supervisor-2] Stopping the monitor...
[DEBUG] [04/02/2020 12:49:00.182] [reactivemongo-akka.actor.default-dispatcher-2] [EventStream] shutting down: StandardOutLogger
[info] r.c.n.ChannelFactory - [Supervisor-2/Connection-1] Cannot create channel to '127.0.0.1:27017' from inactive factory
[warn] r.c.a.MongoDBSystem - [Supervisor-2/Connection-1] Cannot create connection for Node(127.0.0.1:27017,Primary,Vector(Connection([id: 0x03a83e6d, L:0.0.0.0/0.0.0.0:58166 ! R:/127.0.0.1:27017],Connecting,Set(Authenticated(admin,dbReadWrite)),None)),Set(Authenticated(admin,dbReadWrite)),None,ProtocolMetadata(2.6, 3.6),PingInfo(6760584, 0, -1, None),false)
reactivemongo.core.errors.GenericDriverException: MongoError['Cannot create channel to '127.0.0.1:27017' from inactive factory (Supervisor-2/Connection-1)']

Without test property in SavedPostOrBlog model query runs okay, but when I add test property of BSONLong, the jvm crash.

Here is the query:

def createDocument(postOrBlogId: BSONObjectID,
                   saverId: BSONObjectID, savedPostOrBlog: SavedPostOrBlog): Future[UpdateWriteResult] =
  collection.map(_.update(true).one(Json.obj("postOrBlogId" -> postOrBlogId, "saverId" -> saverId), savedPostOrBlog, upsert = true)).flatten

The reactiveMongo dependency : "org.reactivemongo" %% "play2-reactivemongo" % "0.18.4-play27"

Solution

  • The problem is when in development stage we try to compile in sbt by compile command or hot reload, sometimes it happened that

    1. compiler misses some missing method errors, and shows compilation done successfully, but that is not true.
    2. Sometimes compiler failed to create compile time reactive-mongo's some macro activities so some methods are not found on runtime.

    These two I find the reasons behind application crush. If I clean and compile again the project- Either will be able to catch the first time not found error or in case of 2nd problem model related macro activities will be done properly. So runtime error will be removed.