Hi Konrad,
Thank you for the response. In the server side, I have added some debug
messages. Below is the log message.
Datagram buffer size ({}) exceeded.
Whenever I see this messages, that time messages are dropped.
Regards,
Rajesh
On Thu, Jul 13, 2017 at 6:33 PM, Konrad “ktoso” Malawski <
[email protected]> wrote:
> Hi there,
> you do realize that UDP, the protocol itself, does not guarantee delivery
> of anything?
> It absolutely may and will in practice drop packets - it is designed to do
> exactly that.
>
> Start reading about UDP here https://en.wikipedia.org/
> wiki/User_Datagram_Protocol and take it from there to networking books
> and articles.
>
> In short, if you’re suprised that UDP “dropped”, you should likely not be
> using UDP at all :-)
>
> — Konrad
>
>
> On 13 July 2017 at 21:34:17, Madabhattula Rajesh Kumar (
> [email protected]) wrote:
>
> Hi,
>
> I am using Akka Streams to read the messages from UDP port and write into
> the filesystem. It is not able to read all messages. Some messages are
> dropping.
>
> I have found one example program in the github.
>
> https://github.com/jpthomasset/akka-udp-stream
>
> val source = UdpSource(new InetSocketAddress("127.0.0.1", 9876), 100)
> val result = source.map(x => x.data.decodeString("UTF-8")).
> runWith(lineSink(filePath))
> import system.dispatcher
> result.onComplete { _ => system.terminate() }
>
> def lineSink(filename: String): Sink[String, Future[IOResult]] = {
> Flow[String]
> .map(s => ByteString(s + "\n"))
> .toMat(FileIO.toFile(new File(filename)))(Keep.right)
> }
>
> *Do we need to increase the "maxBufferSize" to receive all messages from
> UDP?*
>
> Please let me know how to receive all messages?
>
> Regards,
> Rajesh
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