AVRO架构更新的麻烦

我有一个简单的案例类：

case class User(id: String, login: String, key: String)

我添加字段“名称”

case class User(id: String, login: String, name: String, key: String)

然后在avro架构中添加此字段（user.avsc）

{
  "namespace": "test",
  "type": "record",
  "name": "User",
  "fields": [
    { "name": "id", "type": "string" },
    { "name": "login", "type": "string" },
    { "name": "name", "type": "string" },
    { "name": "key", "type": "string" }
  ]
}

这个类用于其他案例类：

case class AuthRequest(user: User, session: String)

chema（auth_request.avsc）

{
  "namespace": "test",
  "type": "record",
  "name": "AuthRequest",
  "fields": [
    { "name": "user", "type": "User" },
    { "name": "session", "type": "string" }
  ]
}

在那次改变后，我的消费者开始抛出除外

Consumer.committableSource(consumerSettings, Subscriptions.topics("token_service_auth_request"))
    .map { msg =>
      Try {
        val in: ByteArrayInputStream = new ByteArrayInputStream(msg.record.value())
        val input: AvroBinaryInputStream[AuthRequest] = AvroInputStream.binary[AuthRequest](in)
        val result: AuthRequest = input.iterator.toSeq.head !!!! here is exception
        msg.committableOffset.commitScaladsl()

        (msg.record.value(), result, msg.record.key())
      } match {
        case Success((a: Array[Byte], value: AuthRequest, key: String)) =>
          log.info(s"listener got $msg -> $a -> $value")

          context.parent ! value

        case Failure(e) => e.printStackTrace()
      }
    }
    .runWith(Sink.ignore)

java.util.NoSuchElementException：scala.collection.immutable.Stream $ empty $ .head（Stream.scala：1104）at scala.collection.immutable.Stream $ empty $ .head（Stream.scala：1102） ）在test.consumers.AuthRequestListener . $ anonfun $ new $ 2（AuthRequestListener.scala：39）at scala.util.Try $ .apply（Try.scala：209）at test.consumers.AuthRequestListener . $ anonfun $ new $ 1（AuthRequestListener） .scala：36）在test.consumers.AuthRequestListener . $ anonfun $ new $ 1 $ adapted（AuthRequestListener.scala：35）at akka.stream.impl.fusing.Map $$ anon $ 9.onPush（Ops.scala：51）at at akka.stream.impl.fusing.GraphInterpreter.processPush（GraphInterpreter.scala：519）at akka.stream.impl.fusing.GraphInterpreter.processEvent（GraphInterpreter.scala：482）at akka.stream.impl.fusing.GraphInterpreter.execute（ GraphInterpreter.scala：378）akka.stream.impl.fusing.GraphInterpreterShell.runBatch（ActorGraphInterpreter.scala：588）at akka.stream.impl.fusing.GraphInterpreterShell $ AsyncInput.execute（ActorGraphInterpreter.scala：472）at akka.s trek.impl.fusing.GraphInterpreterShell.processEvent（ActorGraphInterpreter.scala：563）akka.stream.impl.fusing.ActorGraphInterpreter.akka $ stream $ impl $ fusing $ actorGraphInterpreter $$ processEvent（ActorGraphInterpreter.scala：745）at akka.stream .impl.fusing.ActorGraphInterpreter $$ anonfun $在akka.actor.Actor.aroundReceive（Actor.scala：517）akka.actor.Actor.aroundReceive $（Actor.scala：）收到$ 1.applyOrElse（ActorGraphInterpreter.scala：760） 515）akka.stream.impl.fusing.ActorGraphInterpreter.aroundReceive（ActorGraphInterpreter.scala：670）at akka.actor.ActorCell.receiveMessage（ActorCell.scala：588）at akka.actor.ActorCell.invoke（ActorCell.scala：557） ）akka.dispatch.Mailbox.processMailbox（Mailbox.scala：258）at akka.dispatch.Mailbox.run（Mailbox.scala：225）at akka.dispatch.Mailbox.exec（Mailbox.scala：235）at akka.dispatch .forkjoin.ForkJoinTask.doExec（ForkJoinTask.java:260）at akka.dispatch.forkjoin.ForkJoinPool $ WorkQueue.runTask（ForkJoinPool.java:1339）at akka.dispatch.forkjoin.ForkJoinPool.run Worker （ForkJoinPool.java:1979）at akka.dispatch.forkjoin.ForkJoinWorkerThread.run（ForkJoinWorkerThread.java:107）

我试图清理构建并使缓存无效 - 我似乎某种缓存以前版本的架构在某些帮助请！