* More generous timeout for dns resolution failure #28133
* Use async-dns as workaround for JDK/glibc/whatever resolution bug
* Handle Async DNS lookup failure in UDP and TCP connections
When creating an UDP connection for a hostname for which we already have a
'negative cache' saying it cannot be resolved, report that as an error
as well.
Noticed while looking at #28133, but looking closer at the logs that seems
like a different problem. Added logging that might make it easier to diagnose.
* ⇒, →, ←
* because we don't want to show them in documentation snippets and
then it's complicated to avoid that when snippets are
located in src/test/scala in individual modules
* dont replace object `→` in FSM.scala and PersistentFSM.scala
* Add CopyrightHeader support for sbt-boilerplate plugin.
* Add CopyrightHeader support for `*.proto` files.
* Add regex match for both `–` and `-` for CopyrightHeader.
* Add CopyrightHeader support for sbt build files.
* Update copyright from 2018 to 2019.
(cherry picked from commit 89af8bdb90)
* remove final identifier in serializers
i* revert/deprecate ProtobufSerializer.ARRAY_OF_BYTE_ARRAY
* adding back compatible empty constructor in serializers
* make FSM.State compatible
* add back ActorPath.ElementRegex
* revert SocketOption changes and add SocketOptionV2
see a6d3704ef6
* problem filter for ActorSystem and ActorPath
* problem filter for ByteString
* problem filter for deprecated Timeout methods
* BalancingPool companion
* ask
* problem filter for ActorDSL
* event bus
* exclude hasSubscriptions
* exclude some problems in testkit
* boundAddress and addressFromSocketAddress
* Pool nrOfInstances
* PromiseActorRef
* check with 2.3.9
* migration guide note
* explicit exclude of final class problems
For example in Java 7 you can now join a multicast group:
case class JoinGroup(group: InetAddress, networkInterface: NetworkInterface) extends SocketOption {
override def afterConnect(c: DatagramChannel): Unit = {
c.join(group, networkInterface)
}
}
IO(Udp) ! Udp.Bind(self, new InetSocketAddress(MulticastListener.port),
options=List(ReuseAddress(true),
JoinGroup(MulticastListener.group, MulticastListener.interf)))
Other minor changes:
- changed all methods in SocketOption to take a Channel instead of a Socket. The socket can be gotten from the Channel but not the reverse.
- all methods that are called before the bind are now called beforeBind for consistency.
- All network connections now call the beforeBind and afterConnect.
* because it is not referentially transparent; normally we reserved parens for
side-effecting code but given how people thoughtlessly close over it we revised
that that decision for sender
* caller can still omit parens
* Made defaultDecider available in SupervisorStrategy,
turned out that I didn't need it but I think it could be
good anyway, e.g.
override def supervisorStrategy = OneForOneStrategy(
enableLogging = false)(SupervisorStrategy.defaultDecider)
* Verified the following scenarios:
- client connection failure
- server bind failure
- kill client (peer closed)
- kill server (peer closed)
