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Norman Maurer 211dde4e08 Add support for TCP fallback when we receive a truncated DnsResponse (#9139)
Motivation:

Sometimes DNS responses can be very large which mean they will not fit in a UDP packet. When this is happening the DNS server will set the TC flag (truncated flag) to tell the resolver that the response was truncated. When a truncated response was received we should allow to retry via TCP and use the received response (if possible) as a replacement for the truncated one.

See https://tools.ietf.org/html/rfc7766.

Modifications:

- Add support for TCP fallback by allow to specify a socketChannelFactory / socketChannelType on the DnsNameResolverBuilder. If this is set to something different then null we will try to fallback to TCP.
- Add decoder / encoder for TCP
- Add unit tests

Result:

Support for TCP fallback as defined by https://tools.ietf.org/html/rfc7766 when using DnsNameResolver.
2019-05-17 14:47:10 +02:00
.github Use GitHub Issue/PR Template Feature 2016-12-07 11:40:26 -08:00
.mvn support publishing snapshots from docker based ci (#8634) 2018-12-07 06:16:39 +01:00
all Always include classes from all native transports no matter on which platfrom netty-all is build (#9111) 2019-04-30 23:24:14 +02:00
bom Remove OIO transport (and transports that depend on it). (#8580) 2018-11-21 15:23:18 +01:00
buffer Fix incorrect behavior of ReadOnlyByteBufferBuf.getBytes(int,ByteBuffer) (#9125) 2019-05-13 07:03:10 +02:00
codec DefaultHeaders#valueIterator doesn't remove from the in bucket list (#9090) 2019-04-27 21:16:04 +02:00
codec-dns Add support for TCP fallback when we receive a truncated DnsResponse (#9139) 2019-05-17 14:47:10 +02:00
codec-haproxy migrate java8: use requireNonNull (#8840) 2019-02-04 10:32:25 +01:00
codec-http Add SVM metadata and minimal substitutions to build graalvm native image applications. (#8963) 2019-04-29 09:12:09 +02:00
codec-http2 Http2MultiplexCodec.DefaultHttp2StreamChannel should handle ChannelConfig.isAutoClose() in a consistent way as AbstractChannel (#9108) 2019-04-29 18:50:44 +02:00
codec-memcache use checkPositive/checkPositiveOrZero (#8835) 2019-02-04 15:55:07 +01:00
codec-mqtt migrate java8: use requireNonNull (#8840) 2019-02-04 10:32:25 +01:00
codec-redis migrate java8: use requireNonNull (#8840) 2019-02-04 10:32:25 +01:00
codec-smtp SmtpRequestEncoderTest ByteBuf leak (#9075) 2019-04-19 08:47:28 +02:00
codec-socks migrate java8: use requireNonNull (#8840) 2019-02-04 10:32:25 +01:00
codec-stomp use checkPositive/checkPositiveOrZero (#8835) 2019-02-04 15:55:07 +01:00
codec-xml Update to new checkstyle plugin (#8777) 2019-01-24 16:24:19 +01:00
common AsciiString.lastIndexOf(...) is implemented incorrectly (#9103) 2019-05-13 07:03:51 +02:00
dev-tools Update version number to start working on Netty 5 2018-11-20 15:49:57 +01:00
docker Add docker-compose file to compile / test with graalvm (#9072) 2019-04-29 08:33:50 +02:00
example Allow to specify KeyStore type in SslContext (#9003) 2019-05-10 07:51:20 +02:00
handler Add missing assume checks to skip tests if KeyManagerFactory can not be used (#9148) 2019-05-15 07:25:03 +02:00
handler-proxy Remove code that accounts for changing EventExecutors in DefaultPromise (#8996) 2019-04-03 10:36:55 +02:00
license Add the NOTICE of the forked portion of Apache Harmony 2018-01-30 11:22:51 +01:00
microbench The benchmark is not taking into account nanoTime granularity (#9033) 2019-04-15 15:15:08 +02:00
resolver migrate java8: use requireNonNull (#8840) 2019-02-04 10:32:25 +01:00
resolver-dns Add support for TCP fallback when we receive a truncated DnsResponse (#9139) 2019-05-17 14:47:10 +02:00
tarball Update version number to start working on Netty 5 2018-11-20 15:49:57 +01:00
testsuite Make Multicast tests more robust (#9053) 2019-04-15 21:40:35 +02:00
testsuite-autobahn Deprecate ChannelInboundHandlerAdapter and ChannelOutboundHandlerAdapter (#8929) 2019-03-13 09:46:10 +01:00
testsuite-http2 Deprecate ChannelInboundHandlerAdapter and ChannelOutboundHandlerAdapter (#8929) 2019-03-13 09:46:10 +01:00
testsuite-native-image Add SVM metadata and minimal substitutions to build graalvm native image applications. (#8963) 2019-04-29 09:12:09 +02:00
testsuite-osgi Adjust testsuite-osgi to resolve bundles from local build (#8944) 2019-03-18 09:56:08 +01:00
testsuite-shading Use maven plugin to prevent API/ABI breakage as part of build process (#8904) 2019-03-01 19:48:29 +01:00
transport Add SVM metadata and minimal substitutions to build graalvm native image applications. (#8963) 2019-04-29 09:12:09 +02:00
transport-native-epoll Remove static wildcard imports in EpollDomainSocketChannelConfig (#9066) 2019-04-18 07:34:08 +02:00
transport-native-kqueue Have (Epoll|KQueue)RecvByteAllocatorHandle extend DelegatingHandle (#9060) 2019-04-16 09:21:43 +02:00
transport-native-unix-common Correctly handle overflow in Native.kevent(...) when EINTR is detected (#9024) 2019-04-10 11:32:26 +02:00
transport-native-unix-common-tests Merge ChannelInboundHandler and ChannelOutboundHandler into ChannelHa… (#8957) 2019-03-28 09:28:27 +00:00
transport-sctp Deprecate ChannelInboundHandlerAdapter and ChannelOutboundHandlerAdapter (#8929) 2019-03-13 09:46:10 +01:00
.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
.gitattributes Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
.gitignore Add .gitignore for docker-sync stuff 2019-03-19 14:04:21 +01:00
CONTRIBUTING.md Move the pull request guide to the developer guide 2014-03-12 13:13:58 +09:00
LICENSE.txt Relicensed to Apache License v2 2009-08-28 07:15:49 +00:00
mvnw Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
mvnw.cmd Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
NOTICE.txt Add the NOTICE of the forked portion of Apache Harmony 2018-01-30 11:22:51 +01:00
pom.xml Adjust pom.xml to be able to build with graalvm (#9107) 2019-04-29 18:40:47 +02:00
README.md Provide an Automatic-Module-Name for the netty-all artifact fixes #7644 2018-01-27 20:31:16 +01:00
run-example.sh Drop SPDY support (#8845) 2019-02-07 09:25:31 +01:00

Netty Project

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.

How to build

For the detailed information about building and developing Netty, please visit the developer guide. This page only gives very basic information.

You require the following to build Netty:

Note that this is build-time requirement. JDK 5 (for 3.x) or 6 (for 4.0+) is enough to run your Netty-based application.

Branches to look

Development of all versions takes place in each branch whose name is identical to <majorVersion>.<minorVersion>. For example, the development of 3.9 and 4.0 resides in the branch '3.9' and the branch '4.0' respectively.

Usage with JDK 9

Netty can be used in modular JDK9 applications as a collection of automatic modules. The module names follow the reverse-DNS style, and are derived from subproject names rather than root packages due to historical reasons. They are listed below:

  • io.netty.all
  • io.netty.buffer
  • io.netty.codec
  • io.netty.codec.dns
  • io.netty.codec.haproxy
  • io.netty.codec.http
  • io.netty.codec.http2
  • io.netty.codec.memcache
  • io.netty.codec.mqtt
  • io.netty.codec.redis
  • io.netty.codec.smtp
  • io.netty.codec.socks
  • io.netty.codec.stomp
  • io.netty.codec.xml
  • io.netty.common
  • io.netty.handler
  • io.netty.handler.proxy
  • io.netty.resolver
  • io.netty.resolver.dns
  • io.netty.transport
  • io.netty.transport.epoll (native omitted - reserved keyword in Java)
  • io.netty.transport.kqueue (native omitted - reserved keyword in Java)
  • io.netty.transport.unix.common (native omitted - reserved keyword in Java)
  • io.netty.transport.rxtx
  • io.netty.transport.sctp
  • io.netty.transport.udt

Automatic modules do not provide any means to declare dependencies, so you need to list each used module separately in your module-info file.