Reducing the use of intermediate datastructures for the ClusterMessageSerializer
This commit is contained in:
Viktor Klang
parent
007a8b2399
commit
a55d024627
1 changed files with 76 additions and 122 deletions
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@ -52,34 +52,20 @@ class ClusterMessageSerializer(val system: ExtendedActorSystem) extends Serializ
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def toBinary(obj: AnyRef): Array[Byte] =
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obj match {
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case ClusterHeartbeatReceiver.Heartbeat(from) ⇒
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addressToProto(from).toByteArray
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case m: GossipEnvelope ⇒
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compress(gossipEnvelopeToProto(m))
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case m: GossipStatus ⇒
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gossipStatusToProto(m).toByteArray
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case m: MetricsGossipEnvelope ⇒
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compress(metricsGossipEnvelopeToProto(m))
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case InternalClusterAction.Join(node, roles) ⇒
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msg.Join(uniqueAddressToProto(node), roles.toVector).toByteArray
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case InternalClusterAction.Welcome(from, gossip) ⇒
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compress(msg.Welcome(uniqueAddressToProto(from), gossipToProto(gossip)))
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case ClusterUserAction.Leave(address) ⇒
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addressToProto(address).toByteArray
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case ClusterUserAction.Down(address) ⇒
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addressToProto(address).toByteArray
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case InternalClusterAction.InitJoin ⇒
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msg.Empty().toByteArray
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case InternalClusterAction.InitJoinAck(address) ⇒
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addressToProto(address).toByteArray
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case InternalClusterAction.InitJoinNack(address) ⇒
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addressToProto(address).toByteArray
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case ClusterHeartbeatReceiver.EndHeartbeat(from) ⇒
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addressToProto(from).toByteArray
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case ClusterHeartbeatSender.HeartbeatRequest(from) ⇒
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addressToProto(from).toByteArray
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case _ ⇒
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throw new IllegalArgumentException(s"Can't serialize object of type ${obj.getClass}")
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case ClusterHeartbeatReceiver.Heartbeat(from) ⇒ addressToProto(from).toByteArray
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case m: GossipEnvelope ⇒ compress(gossipEnvelopeToProto(m))
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case m: GossipStatus ⇒ gossipStatusToProto(m).toByteArray
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case m: MetricsGossipEnvelope ⇒ compress(metricsGossipEnvelopeToProto(m))
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case InternalClusterAction.Join(node, roles) ⇒ msg.Join(uniqueAddressToProto(node), roles.toVector).toByteArray
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case InternalClusterAction.Welcome(from, gossip) ⇒ compress(msg.Welcome(uniqueAddressToProto(from), gossipToProto(gossip)))
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case ClusterUserAction.Leave(address) ⇒ addressToProto(address).toByteArray
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case ClusterUserAction.Down(address) ⇒ addressToProto(address).toByteArray
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case InternalClusterAction.InitJoin ⇒ msg.Empty().toByteArray
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case InternalClusterAction.InitJoinAck(address) ⇒ addressToProto(address).toByteArray
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case InternalClusterAction.InitJoinNack(address) ⇒ addressToProto(address).toByteArray
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case ClusterHeartbeatReceiver.EndHeartbeat(from) ⇒ addressToProto(from).toByteArray
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case ClusterHeartbeatSender.HeartbeatRequest(from) ⇒ addressToProto(from).toByteArray
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case _ ⇒ throw new IllegalArgumentException(s"Can't serialize object of type ${obj.getClass}")
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}
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def compress(msg: MessageLite): Array[Byte] = {
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@ -95,52 +81,43 @@ class ClusterMessageSerializer(val system: ExtendedActorSystem) extends Serializ
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val out = new ByteArrayOutputStream()
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val buffer = new Array[Byte](BufferSize)
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@tailrec def readChunk(): Unit = {
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val n = in.read(buffer)
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if (n != -1) {
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@tailrec def readChunk(): Unit = in.read(buffer) match {
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case -1 ⇒ ()
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case n ⇒
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out.write(buffer, 0, n)
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readChunk()
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}
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}
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readChunk()
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readChunk()
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out.toByteArray
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}
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def fromBinary(bytes: Array[Byte],
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clazz: Option[Class[_]]): AnyRef = {
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def fromBinary(bytes: Array[Byte], clazz: Option[Class[_]]): AnyRef =
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clazz match {
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case Some(c) ⇒ fromBinaryMap.get(c.asInstanceOf[Class[ClusterMessage]]) match {
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case Some(f) ⇒ f(bytes)
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case None ⇒ throw new IllegalArgumentException(s"Unimplemented deserialization of message class ${c} in ClusterSerializer")
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case None ⇒ throw new IllegalArgumentException(s"Unimplemented deserialization of message class $c in ClusterSerializer")
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}
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case _ ⇒ throw new IllegalArgumentException("Need a cluster message class to be able to deserialize bytes in ClusterSerializer")
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}
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}
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private def addressFromBinary(bytes: Array[Byte]): Address = {
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private def addressFromBinary(bytes: Array[Byte]): Address =
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addressFromProto(msg.Address.defaultInstance.mergeFrom(bytes))
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}
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private def uniqueAddressFromBinary(bytes: Array[Byte]): UniqueAddress = {
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private def uniqueAddressFromBinary(bytes: Array[Byte]): UniqueAddress =
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uniqueAddressFromProto(msg.UniqueAddress.defaultInstance.mergeFrom(bytes))
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}
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private def addressToProto(address: Address): msg.Address = {
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private def addressToProto(address: Address): msg.Address =
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msg.Address(address.system, address.host.getOrElse(""), address.port.getOrElse(0), Some(address.protocol))
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}
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private def uniqueAddressToProto(uniqueAddress: UniqueAddress): msg.UniqueAddress = {
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private def uniqueAddressToProto(uniqueAddress: UniqueAddress): msg.UniqueAddress =
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msg.UniqueAddress(addressToProto(uniqueAddress.address), uniqueAddress.uid)
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}
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private def addressFromProto(address: msg.Address): Address = {
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private def addressFromProto(address: msg.Address): Address =
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Address(address.protocol.getOrElse(""), address.system, address.hostname, address.port)
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}
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private def uniqueAddressFromProto(uniqueAddress: msg.UniqueAddress): UniqueAddress = {
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private def uniqueAddressFromProto(uniqueAddress: msg.UniqueAddress): UniqueAddress =
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UniqueAddress(addressFromProto(uniqueAddress.address), uniqueAddress.uid)
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}
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private val memberStatusToInt = scala.collection.immutable.HashMap[MemberStatus, Int](
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MemberStatus.Joining -> msg.MemberStatus.Joining_VALUE,
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@ -158,32 +135,31 @@ class ClusterMessageSerializer(val system: ExtendedActorSystem) extends Serializ
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}
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private def gossipToProto(gossip: Gossip): msg.Gossip = {
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val allMembers = List(gossip.members, gossip.overview.unreachable).flatMap(identity)
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val allAddresses = allMembers.map(_.uniqueAddress).to[Vector]
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import scala.collection.breakOut
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val allMembers = (gossip.members.iterator ++ gossip.overview.unreachable.iterator).toIndexedSeq
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val allAddresses: Vector[UniqueAddress] = allMembers.map(_.uniqueAddress)(breakOut)
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val addressMapping = allAddresses.zipWithIndex.toMap
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val allRoles = allMembers.foldLeft(Set.empty[String])((acc, m) ⇒ acc ++ m.roles).to[Vector]
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val roleMapping = allRoles.zipWithIndex.toMap
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val allHashes = gossip.overview.seen.values.foldLeft(gossip.version.versions.keys.toSet) {
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case (s, VectorClock(v)) ⇒ s ++ v.keys
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}.to[Vector]
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val allHashes = gossip.overview.seen.values.foldLeft(gossip.version.versions.keys.toSet)(
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{ case (s, VectorClock(v)) ⇒ s ++ v.keys }).to[Vector]
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val hashMapping = allHashes.zipWithIndex.toMap
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def mapUniqueAddress(uniqueAddress: UniqueAddress) = mapWithErrorMessage(addressMapping, uniqueAddress, "address")
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def mapRole(role: String) = mapWithErrorMessage(roleMapping, role, "role")
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def memberToProto(member: Member) = {
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def memberToProto(member: Member) =
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msg.Member(mapUniqueAddress(member.uniqueAddress), member.upNumber,
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msg.MemberStatus.valueOf(memberStatusToInt(member.status)), member.roles.map(mapRole).to[Vector])
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msg.MemberStatus.valueOf(memberStatusToInt(member.status)), member.roles.map(mapRole)(breakOut))
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def seenToProto(seen: (UniqueAddress, VectorClock)) = {
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val (address, version) = seen
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msg.GossipOverview.Seen(mapUniqueAddress(address), vectorClockToProto(version, hashMapping))
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}
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def seenToProto(seen: (UniqueAddress, VectorClock)) = seen match {
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case (address: UniqueAddress, version: VectorClock) ⇒
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msg.GossipOverview.Seen(mapUniqueAddress(address), vectorClockToProto(version, hashMapping))
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}
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val unreachable = gossip.overview.unreachable.map(memberToProto).to[Vector]
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val members = gossip.members.toSeq.map(memberToProto).to[Vector]
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val seen = gossip.overview.seen.map(seenToProto).to[Vector]
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val unreachable: Vector[msg.Member] = gossip.overview.unreachable.map(memberToProto)(breakOut)
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val members: Vector[msg.Member] = gossip.members.map(memberToProto)(breakOut)
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val seen: Vector[msg.GossipOverview.Seen] = gossip.overview.seen.map(seenToProto)(breakOut)
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val overview = msg.GossipOverview(seen, unreachable)
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@ -192,46 +168,43 @@ class ClusterMessageSerializer(val system: ExtendedActorSystem) extends Serializ
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}
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private def vectorClockToProto(version: VectorClock, hashMapping: Map[String, Int]): msg.VectorClock = {
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def mapHash(hash: String) = mapWithErrorMessage(hashMapping, hash, "hash")
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msg.VectorClock(None,
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version.versions.map { case (n, t) ⇒ msg.VectorClock.Version(mapHash(n), t.time) }.to[Vector])
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val versions: Vector[msg.VectorClock.Version] = version.versions.map({
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case (n, t) ⇒ msg.VectorClock.Version(mapWithErrorMessage(hashMapping, n, "hash"), t.time)
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})(breakOut)
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msg.VectorClock(None, versions)
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}
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private def gossipEnvelopeToProto(envelope: GossipEnvelope): msg.GossipEnvelope = {
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msg.GossipEnvelope(uniqueAddressToProto(envelope.from), uniqueAddressToProto(envelope.to),
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gossipToProto(envelope.gossip))
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}
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private def gossipEnvelopeToProto(envelope: GossipEnvelope): msg.GossipEnvelope =
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msg.GossipEnvelope(uniqueAddressToProto(envelope.from), uniqueAddressToProto(envelope.to), gossipToProto(envelope.gossip))
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private def gossipStatusToProto(status: GossipStatus): msg.GossipStatus = {
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val allHashes: Vector[String] = status.version.versions.keys.toVector
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val allHashes = status.version.versions.keys.toVector
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val hashMapping = allHashes.zipWithIndex.toMap
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msg.GossipStatus(uniqueAddressToProto(status.from), allHashes, vectorClockToProto(status.version, hashMapping))
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}
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private def gossipEnvelopeFromBinary(bytes: Array[Byte]): GossipEnvelope = {
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private def gossipEnvelopeFromBinary(bytes: Array[Byte]): GossipEnvelope =
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gossipEnvelopeFromProto(msg.GossipEnvelope.defaultInstance.mergeFrom(decompress(bytes)))
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}
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private def gossipStatusFromBinary(bytes: Array[Byte]): GossipStatus = {
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private def gossipStatusFromBinary(bytes: Array[Byte]): GossipStatus =
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gossipStatusFromProto(msg.GossipStatus.defaultInstance.mergeFrom(bytes))
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}
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private def gossipFromProto(gossip: msg.Gossip): Gossip = {
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import scala.collection.breakOut
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val addressMapping = gossip.allAddresses.map(uniqueAddressFromProto)
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val roleMapping = gossip.allRoles
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val hashMapping = gossip.allHashes
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def memberFromProto(member: msg.Member) = {
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def memberFromProto(member: msg.Member) =
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new Member(addressMapping(member.addressIndex), member.upNumber, memberStatusFromInt(member.status.id),
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member.rolesIndexes.map(roleMapping).to[Set])
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}
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member.rolesIndexes.map(roleMapping)(breakOut))
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def seenFromProto(seen: msg.GossipOverview.Seen) =
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(addressMapping(seen.addressIndex), vectorClockFromProto(seen.version, hashMapping))
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val members = gossip.members.map(memberFromProto).to[immutable.SortedSet]
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val unreachable = gossip.overview.unreachable.map(memberFromProto).toSet
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val seen = gossip.overview.seen.map(seenFromProto)(breakOut): TreeMap[UniqueAddress, VectorClock]
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val members: immutable.SortedSet[Member] = gossip.members.map(memberFromProto)(breakOut)
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val unreachable: immutable.Set[Member] = gossip.overview.unreachable.map(memberFromProto)(breakOut)
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val seen: immutable.TreeMap[UniqueAddress, VectorClock] = gossip.overview.seen.map(seenFromProto)(breakOut)
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val overview = GossipOverview(seen, unreachable)
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Gossip(members, overview, vectorClockFromProto(gossip.version, hashMapping))
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@ -239,34 +212,27 @@ class ClusterMessageSerializer(val system: ExtendedActorSystem) extends Serializ
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private def vectorClockFromProto(version: msg.VectorClock, hashMapping: immutable.Seq[String]) = {
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VectorClock(version.versions.map({
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case msg.VectorClock.Version(h, t) ⇒
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(VectorClock.Node.fromHash(hashMapping(h)), VectorClock.Timestamp(t))
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})(breakOut): TreeMap[VectorClock.Node, VectorClock.Timestamp])
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case msg.VectorClock.Version(h, t) ⇒ (VectorClock.Node.fromHash(hashMapping(h)), VectorClock.Timestamp(t))
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})(breakOut))
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}
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private def gossipEnvelopeFromProto(envelope: msg.GossipEnvelope): GossipEnvelope = {
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GossipEnvelope(uniqueAddressFromProto(envelope.from), uniqueAddressFromProto(envelope.to),
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gossipFromProto(envelope.gossip))
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}
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private def gossipEnvelopeFromProto(envelope: msg.GossipEnvelope): GossipEnvelope =
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GossipEnvelope(uniqueAddressFromProto(envelope.from), uniqueAddressFromProto(envelope.to), gossipFromProto(envelope.gossip))
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private def gossipStatusFromProto(status: msg.GossipStatus): GossipStatus = {
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val hashMapping = status.allHashes
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GossipStatus(uniqueAddressFromProto(status.from), vectorClockFromProto(status.version, hashMapping))
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}
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private def gossipStatusFromProto(status: msg.GossipStatus): GossipStatus =
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GossipStatus(uniqueAddressFromProto(status.from), vectorClockFromProto(status.version, status.allHashes))
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private def metricsGossipEnvelopeToProto(envelope: MetricsGossipEnvelope): msg.MetricsGossipEnvelope = {
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val mgossip = envelope.gossip
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val allAddresses = mgossip.nodes.foldLeft(Set.empty[Address])((s, n) ⇒ s + n.address).to[Vector]
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val addressMapping = allAddresses.zipWithIndex.toMap
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val allMetricNames = mgossip.nodes.foldLeft(Set.empty[String])((s, n) ⇒ s ++ n.metrics.map(_.name)).to[Vector]
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val allMetricNames = mgossip.nodes.foldLeft(Set.empty[String])((s, n) ⇒ s ++ n.metrics.iterator.map(_.name)).to[Vector]
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val metricNamesMapping = allMetricNames.zipWithIndex.toMap
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def mapAddress(address: Address) = mapWithErrorMessage(addressMapping, address, "address")
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def mapName(name: String) = mapWithErrorMessage(metricNamesMapping, name, "address")
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def ewmaToProto(ewma: Option[EWMA]): Option[msg.NodeMetrics.EWMA] = {
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ewma.map(x ⇒ msg.NodeMetrics.EWMA(x.value, x.alpha))
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}
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def ewmaToProto(ewma: Option[EWMA]): Option[msg.NodeMetrics.EWMA] = ewma.map(x ⇒ msg.NodeMetrics.EWMA(x.value, x.alpha))
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def numberToProto(number: Number): msg.NodeMetrics.Number = {
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import msg.NodeMetrics.Number
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@ -281,38 +247,31 @@ class ClusterMessageSerializer(val system: ExtendedActorSystem) extends Serializ
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val out = new ObjectOutputStream(bos)
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out.writeObject(number)
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out.close()
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msg.NodeMetrics.Number(msg.NodeMetrics.NumberType.Serialized, None, None,
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Some(ByteString.copyFrom(bos.toByteArray)))
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msg.NodeMetrics.Number(msg.NodeMetrics.NumberType.Serialized, None, None, Some(ByteString.copyFrom(bos.toByteArray)))
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}
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}
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def metricToProto(metric: Metric): msg.NodeMetrics.Metric = {
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def metricToProto(metric: Metric): msg.NodeMetrics.Metric =
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msg.NodeMetrics.Metric(mapName(metric.name), numberToProto(metric.value), ewmaToProto(metric.average))
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}
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def nodeMetricsToProto(nodeMetrics: NodeMetrics): msg.NodeMetrics = {
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msg.NodeMetrics(mapAddress(nodeMetrics.address), nodeMetrics.timestamp,
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nodeMetrics.metrics.map(metricToProto).to[Vector])
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}
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def nodeMetricsToProto(nodeMetrics: NodeMetrics): msg.NodeMetrics =
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msg.NodeMetrics(mapAddress(nodeMetrics.address), nodeMetrics.timestamp, nodeMetrics.metrics.map(metricToProto)(breakOut))
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val nodeMetrics = mgossip.nodes.map(nodeMetricsToProto).to[Vector]
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val nodeMetrics: Vector[msg.NodeMetrics] = mgossip.nodes.map(nodeMetricsToProto)(breakOut)
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msg.MetricsGossipEnvelope(addressToProto(envelope.from),
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msg.MetricsGossip(allAddresses.map(addressToProto), allMetricNames, nodeMetrics), envelope.reply)
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}
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private def metricsGossipEnvelopeFromBinary(bytes: Array[Byte]): MetricsGossipEnvelope = {
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private def metricsGossipEnvelopeFromBinary(bytes: Array[Byte]): MetricsGossipEnvelope =
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metricsGossipEnvelopeFromProto(msg.MetricsGossipEnvelope.defaultInstance.mergeFrom(decompress(bytes)))
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}
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private def metricsGossipEnvelopeFromProto(envelope: msg.MetricsGossipEnvelope): MetricsGossipEnvelope = {
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val mgossip = envelope.gossip
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val addressMapping = mgossip.allAddresses.map(addressFromProto)
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val metricNameMapping = mgossip.allMetricNames
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def ewmaFromProto(ewma: Option[msg.NodeMetrics.EWMA]): Option[EWMA] = {
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ewma.map(x ⇒ EWMA(x.value, x.alpha))
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}
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def ewmaFromProto(ewma: Option[msg.NodeMetrics.EWMA]): Option[EWMA] = ewma.map(x ⇒ EWMA(x.value, x.alpha))
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def numberFromProto(number: msg.NodeMetrics.Number): Number = {
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import msg.NodeMetrics.Number
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@ -323,27 +282,22 @@ class ClusterMessageSerializer(val system: ExtendedActorSystem) extends Serializ
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case Number(NumberType.Float, Some(n), _, _) ⇒ jl.Float.intBitsToFloat(n)
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case Number(NumberType.Integer, Some(n), _, _) ⇒ n
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case Number(NumberType.Serialized, _, _, Some(b)) ⇒
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val in = new ClassLoaderObjectInputStream(system.dynamicAccess.classLoader,
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new ByteArrayInputStream(b.toByteArray))
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val in = new ClassLoaderObjectInputStream(system.dynamicAccess.classLoader, new ByteArrayInputStream(b.toByteArray))
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val obj = in.readObject
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in.close()
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obj.asInstanceOf[jl.Number]
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}
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}
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def metricFromProto(metric: msg.NodeMetrics.Metric): Metric = {
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def metricFromProto(metric: msg.NodeMetrics.Metric): Metric =
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Metric(metricNameMapping(metric.nameIndex), numberFromProto(metric.number), ewmaFromProto(metric.ewma))
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}
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def nodeMetricsFromProto(nodeMetrics: msg.NodeMetrics): NodeMetrics = {
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NodeMetrics(addressMapping(nodeMetrics.addressIndex), nodeMetrics.timestamp,
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nodeMetrics.metrics.map(metricFromProto).toSet)
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}
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def nodeMetricsFromProto(nodeMetrics: msg.NodeMetrics): NodeMetrics =
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NodeMetrics(addressMapping(nodeMetrics.addressIndex), nodeMetrics.timestamp, nodeMetrics.metrics.map(metricFromProto)(breakOut))
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val nodeMetrics = mgossip.nodeMetrics.map(nodeMetricsFromProto).toSet
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val nodeMetrics: Set[NodeMetrics] = mgossip.nodeMetrics.map(nodeMetricsFromProto)(breakOut)
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MetricsGossipEnvelope(addressFromProto(envelope.from),
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MetricsGossip(nodeMetrics), envelope.reply)
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MetricsGossipEnvelope(addressFromProto(envelope.from), MetricsGossip(nodeMetrics), envelope.reply)
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}
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}
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