Commit Graph

9005 Commits

Author SHA1 Message Date
root
9e50739601 [maven-release-plugin] prepare release netty-4.1.31.Final 2018-10-29 15:37:47 +00:00
Nick Hill
48c45cf4ac Fix leak and corruption bugs in CompositeByteBuf (#8438)
Motivation:

I came across two bugs:
- Components removed due to capacity reduction aren't released
- Offsets aren't set correctly on empty components that are added
between existing components

Modifications:

Add unit tests which expose these bugs, fix them.

Result:

Bugs are fixed
2018-10-28 10:28:18 +01:00
Norman Maurer
b6522927d7
Add profile to easily run testsuite against netty-tcnative-boringssl-static (#8436)
Motivation:

We should provide an easy way to run our testsuite against netty-tcnative-boringssl-static

Modifications:

- Add boringssl profile which can be used to enable usage of netty-tcnative-boringssl-static
- Make use of the profile in docker-compose

Result:

Cleaner and easier way of running testsuite against netty-tcnative-boringssl-static
2018-10-28 10:27:34 +01:00
Nick Hill
d7fa7be67f Exploit PlatformDependent.allocateUninitializedArray() in more places (#8393)
Motivation:

There are currently many more places where this could be used which were
possibly not considered when the method was added.

If https://github.com/netty/netty/pull/8388 is included in its current
form, a number of these places could additionally make use of the same
BYTE_ARRAYS threadlocal.

There's also a couple of adjacent places where an optimistically-pooled
heap buffer is used for temp byte storage which could use the
threadlocal too in preference to allocating a temp heap bytebuf wrapper.
For example
https://github.com/netty/netty/blob/4.1/buffer/src/main/java/io/netty/buffer/ByteBufUtil.java#L1417.

Modifications:

Replace new byte[] with PlatformDependent.allocateUninitializedArray()
where appropriate; make use of ByteBufUtil.getBytes() in some places
which currently perform the equivalent logic, including avoiding copy of
backing array if possible (although would be rare).

Result:

Further potential speed-up with java9+ and appropriate compile flags.
Many of these places could be on latency-sensitive code paths.
2018-10-27 10:43:28 -05:00
Nick Hill
583d838f7c Optimize AbstractByteBuf.getCharSequence() in US_ASCII case (#8392)
* Optimize AbstractByteBuf.getCharSequence() in US_ASCII case

Motivation:

Inspired by https://github.com/netty/netty/pull/8388, I noticed this
simple optimization to avoid char[] allocation (also suggested in a TODO
here).

Modifications:

Return an AsciiString from AbstractByteBuf.getCharSequence() if
requested charset is US_ASCII or ISO_8859_1 (latter thanks to
@Scottmitch's suggestion). Also tweak unit tests not to require Strings
and include a new benchmark to demonstrate the speedup.

Result:

Speed-up of AbstractByteBuf.getCharSequence() in ascii and iso 8859/1
cases
2018-10-26 15:32:38 -07:00
Norman Maurer
ce39773e04
Add support for boringssl and TLSv1.3 (#8412)
Motivation:

0ddc62cec0 added support for TLSv1.3 when using openssl 1.1.1. Now that BoringSSL chromium-stable branch supports it as well we can also support it with netty-tcnative-boringssl-static.
During this some unit tests failed with BoringSSL which was caused by not correctly handling flush() while the handshake is still in progress.

Modification:

- Upgrade netty-tcnative version which also supports TLSv1.3 when using BoringSSL
- Correctly handle flush() when done while the handshake is still in progress in all cases.

Result:

Easier for people to enable TLSv1.3 when using native SSL impl.
Ensure flush() while handshake is in progress will always be honored.
2018-10-26 15:29:49 -07:00
almson
1cc692dd7d Fix incorrect reachability assumption in ResourceLeakDetector (#8410)
Motivation:

trackedObject != null gives no guarantee that trackedObject remains reachable. This may cause problems related to premature finalization: false leak detector warnings.
 
Modifications:

Add private method reachabilityFence0 that works on JDK 8 and can be factored out into PlatformDependent. Later, it can be swapped for the real Reference.reachabilityFence.
 
Result:

No false leak detector warnings in future versions of JDK.
2018-10-24 22:15:13 +02:00
Norman Maurer
0cdd9de6de
Update to JDK 12 EA16 when running CI jobs against JDK 12. (#8421)
Motivation:

A new EA release was done, we should always run against the latest.

Modifications:

Update to EA 16.

Result:

CI runs with latest EA release for JDK12.
2018-10-23 14:55:19 -07:00
Norman Maurer
9e762e8816
Correctly detect if KeyManagerFactory is supported by OpenSSL even when sun.security.x509.* can not be accessed and bouncycastle is not on the classpath. (#8415)
Motivation:

OpenSsl used SelfSignedCertificate in its static init block to detect if KeyManagerFactory is supported. Unfortunally this only works when either sun.security.x509.* can be accessed or bouncycastle is on the classpath.
We should not depend on either of it.

This came up in https://github.com/netty/netty-tcnative/issues/404#issuecomment-431551890.

Modifications:

Just directly use the bytes to generate the X509Certificate and so not depend on sun.security.x509.* / bouncycastle.

Result:

Correctly be able to detect if KeyManagerFactory can be supported in all cases.
2018-10-23 17:08:23 +02:00
almson
fc35e20e2c Include correct duped value in DefaultResourceLeak.toString() (#8413)
Motivation:

DefaultResourceLeak.toString() did include the wrong value for duplicated records.

Modifications:

Include the correct value.

Result:

Correct toString() implementation.
2018-10-22 15:01:38 +02:00
Norman Maurer
a93ff3a0e4
Upgrade commons-compress to 2.0.18 (#8416)
Motivation:

Commons-compress < 2.0.18 has a security flaw so we should upgrade (even if we only use it in tests anyway).

Modifications:

Update to 2.0.18

Result:

Use latest version.
2018-10-20 22:03:27 +02:00
Norman Maurer
91201fb338
Remove workaround in tests for TLSv1.3 bug in Java11 as it was fixed in 11.0.1 (#8409)
Motivation:

We had put some workaround in our tests due a bug in the Java11 implementation of TLSv1.3. This was now fixes as part of 11.0.1.

See https://bugs.openjdk.java.net/browse/JDK-8211067.

Modifications:

Remove workaround in SSL tests.

Result:

Run all tests with supported TLS version.
2018-10-19 17:21:04 +02:00
Norman Maurer
87ec2f882a
Reduce overhead by ByteBufUtil.decodeString(...) which is used by AbstractByteBuf.toString(...) and AbstractByteBuf.getCharSequence(...) (#8388)
Motivation:

Our current implementation that is used for toString(Charset) operations on AbstractByteBuf implementation is quite slow as it does a lot of uncessary memory copies. We should just use new String(...) as it has a lot of optimizations to handle these cases.

Modifications:

Rewrite ByteBufUtil.decodeString(...) to use new String(...)

Result:

Less overhead for toString(Charset) operations.

Benchmark                                         (charsetName)  (direct)  (size)   Mode  Cnt         Score         Error  Units
ByteBufUtilDecodeStringBenchmark.decodeString          US-ASCII     false       8  thrpt   20  22401645.093 ? 4671452.479  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString          US-ASCII     false      64  thrpt   20  23678483.384 ? 3749164.446  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString          US-ASCII      true       8  thrpt   20  15731142.651 ? 3782931.591  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString          US-ASCII      true      64  thrpt   20  16244232.229 ? 1886259.658  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString             UTF-8     false       8  thrpt   20  25983680.959 ? 5045782.289  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString             UTF-8     false      64  thrpt   20  26235589.339 ? 2867004.950  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString             UTF-8      true       8  thrpt   20  18499027.808 ? 4784684.268  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString             UTF-8      true      64  thrpt   20  16825286.141 ? 1008712.342  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString            UTF-16     false       8  thrpt   20   5789879.092 ? 1201786.359  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString            UTF-16     false      64  thrpt   20   2173243.225 ?  417809.341  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString            UTF-16      true       8  thrpt   20   5035583.011 ? 1001978.854  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString            UTF-16      true      64  thrpt   20   2162345.301 ?  402410.408  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString        ISO-8859-1     false       8  thrpt   20  30039052.376 ? 6539111.622  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString        ISO-8859-1     false      64  thrpt   20  31414163.515 ? 2096710.526  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString        ISO-8859-1      true       8  thrpt   20  19538587.855 ? 4639115.572  ops/s
ByteBufUtilDecodeStringBenchmark.decodeString        ISO-8859-1      true      64  thrpt   20  19467839.722 ? 1672687.213  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld       US-ASCII     false       8  thrpt   20  10787326.745 ? 1034197.864  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld       US-ASCII     false      64  thrpt   20   7129801.930 ? 1363019.209  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld       US-ASCII      true       8  thrpt   20   9002529.605 ? 2017642.445  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld       US-ASCII      true      64  thrpt   20   3860192.352 ?  826218.738  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld          UTF-8     false       8  thrpt   20  10532838.027 ? 2151743.968  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld          UTF-8     false      64  thrpt   20   7185554.597 ? 1387685.785  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld          UTF-8      true       8  thrpt   20   7352253.316 ? 1333823.850  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld          UTF-8      true      64  thrpt   20   2825578.707 ?  349701.156  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld         UTF-16     false       8  thrpt   20   7277446.665 ? 1447034.346  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld         UTF-16     false      64  thrpt   20   2445929.579 ?  562816.641  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld         UTF-16      true       8  thrpt   20   6201174.401 ? 1236137.786  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld         UTF-16      true      64  thrpt   20   2310674.973 ?  525587.959  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld     ISO-8859-1     false       8  thrpt   20  11142625.392 ? 1680556.468  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld     ISO-8859-1     false      64  thrpt   20   8127116.405 ? 1128513.860  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld     ISO-8859-1      true       8  thrpt   20   9405751.952 ? 2193324.806  ops/s
ByteBufUtilDecodeStringBenchmark.decodeStringOld     ISO-8859-1      true      64  thrpt   20   3943282.076 ?  737798.070  ops/s

Benchmark result is saved to /home/norman/mainframer/netty/microbench/target/reports/performance/ByteBufUtilDecodeStringBenchmark.json
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1,030.173 sec - in io.netty.buffer.ByteBufUtilDecodeStringBenchmark
[1030.460s][info   ][gc,heap,exit ] Heap
[1030.460s][info   ][gc,heap,exit ]  garbage-first heap   total 516096K, used 257918K [0x0000000609a00000, 0x0000000800000000)
[1030.460s][info   ][gc,heap,exit ]   region size 2048K, 127 young (260096K), 2 survivors (4096K)
[1030.460s][info   ][gc,heap,exit ]  Metaspace       used 17123K, capacity 17438K, committed 17792K, reserved 1064960K
[1030.460s][info   ][gc,heap,exit ]   class space    used 1709K, capacity 1827K, committed 1920K, reserved 1048576K
2018-10-19 14:00:13 +02:00
Norman Maurer
69545aedc4
CompositeByteBuf.decompose(...) does not correctly slice content. (#8403)
Motivation:

CompositeByteBuf.decompose(...) did not correctly slice the content and so produced an incorrect representation of the data.

Modifications:

- Rewrote implementation to fix bug and also improved it to reduce GC
- Add unit tests.

Result:

Fixes https://github.com/netty/netty/issues/8400.
2018-10-19 08:05:22 +02:00
Norman Maurer
3a4a0432d3 Fix broken testsuite-shading when using with netty-tcnative-boringssl-static (#8404)
Motivation:

2109f14c24 corrected how we run the testsuite with boringssl-static but missed to also adjust the testsuite-shading configuration which lead to test failures.

Modifications:

Correctly compose the native lib name when no classifier is used.

Result:

Testsuite passes again.
2018-10-18 19:31:01 +02:00
Christian Lang
a6f807dd68 Fix context and window sizes sides. (#8395)
Motivation:

As mentioned in RFC 7692 :

The "server_no_context_takeover" Extension Parameter should be used on server side for compression and on client side for decompression.

The "client_no_context_takeover" Extension Parameter should be used on client side for compression and on server side for decompression.

Right now, in PerMessageDeflateClientExtensionHandshaker, the decoder uses clientNoContext instead of serverNoContext and the encoder uses serverNoContext instead of clientNoContext.

The same inversion is present in PerMessageDeflateServerExtensionHandshaker: the decoder uses
serverNoContext instead of clientNoContext, while the encoder uses serverNoContext instead of clientNoContext. Besides the context inversion, the sliding window sizes seem to be inversed as well.

Modification:

Inverse clientNoContext with serverNoContext and clientWindowSize with serverWindowSize for both the Decoder and Encoder in PerMessageDeflateServerExtensionHandshaker and PerMessageDeflateClientExtensionHandshaker.

Result:

This fixes the decompression fail in the case that one of the contexts is set and the other one is not.
2018-10-18 13:55:30 +02:00
Norman Maurer
201e984cb3
Allow to use TLSv1.3 with netty-tcnative withe java versions prior to 11. (#8394)
Motivation:

At the moment it's only possible to use TLSv1.3 with netty-tcnative if Java 11 is used. It should be possible to do so even with Java 8, 9 and 10.

Modification:

Add a workaround to be able to use TLSv1.3 also when using Java version prior to Java 11 and the default X509ExtendedTrustManager is used.

Result:

Be able to use TLSv1.3 also with past versions of Java.
2018-10-18 13:50:12 +02:00
Norman Maurer
47e4a58d90
Explicit specify java version to use to ensure we rebuild image when java version changes. (#8397)
Motivation:

We should explicit specify the java version to use to ensure docker will rebuild the image once a new java version was released and we specify it. Also we should use openjdk for testing when possible.

Modifications:

- Explicit specify the java versions to use
- Use openjdk when possible.

Result:

Ensure latest java versions are used during testing
2018-10-18 12:41:30 +02:00
Norman Maurer
f24da67a23
Update jetty-alpn-agent version to support latest JDK 8 release. (#8402)
Motivation:

We need to update jetty-alpn-agent to be able to run tests with  OpenJDK 8u191

Modifications:

Update to 2.0.8

Result:

Be able to run tests with latest JDK 8 release.
2018-10-18 08:22:20 +02:00
Norman Maurer
3543e17967
Ensure OpenSslEngine will not try to call SSL_free multiple times even when constructor throws. (#8399)
Motivation:

When the constructor of OpenSslEngine threw we could end up to self call SSL_free by ourself and then have the finalizer do the same which may lead to double free-ing and so SIGSEV.

Modifications:

Just call shutdown() when the constructor throws and so ensure SSL_free is guarded correctly in the finalizer.

Result:

No more SIGSEV possible.
2018-10-18 07:38:03 +02:00
Norman Maurer
2109f14c24
When running our testsuite with netty-tcnative-boringssl-static we should use an empty classifier. (#8396)
Motivation:

We publish an "uber-jar" for netty-tcnative-boringssl-static so we should use it when testing against boringssl.

Modifications:

Ensure we use empty classifier.

Result:

Use uber-jar when testing
2018-10-17 19:36:20 +02:00
Norman Maurer
0ddc62cec0
Add support for TLSv1.3 (#8293)
Motivation:

TLSv1.3 support is included in java11 and is also supported by OpenSSL 1.1.1, so we should support when possible.

Modifications:
- Add support for TLSv1.3 using either the JDK implementation or the native implementation provided by netty-tcnative when compiled against openssl 1.1.1
- Adjust unit tests for semantics provided by TLSv1.3
- Correctly handle custom Provider implementations that not support TLSv1.3

Result:

Be able to use TLSv1.3 with netty.
2018-10-17 08:35:35 +02:00
Stephane Landelle
9eebe7ed74 Add full JdkSslContext public constructor, close #8384 (#8389)
Motivation:

JdkSslContext provides public constructors to wrap an existing `javax.net.ssl.SSLContext`.

Sadly, some options combinations are not possible with the existing constructors, eg:
*  protocols is not exposed and always forced to null, so default protocols are always enforced
* startTls is not exposed and always forced to false

Modification:

Add full constructor that take protocols and startTls parameters.

Result:

It's possible to create a JdkSslContext from an existing SSLContext and still have control over protocols and startTls
2018-10-17 08:28:39 +02:00
Julien Hoarau
04001fdad1 Upgrade h2spec-maven-plugin (#8386)
Motivation:
- Version 0.3 would sometimes fail to report failing tests
- New version contains upgraded version of h2spec

Modifications:
- Bump h2spec-maven-plugin to 0.6
- Remove excluded specs that are no passing
- Add failing spec "half closed (remote): Sends a HEADERS frame" to
exclude list

Result:
Build will fail when non excluded specs fails.
2018-10-16 07:05:45 +02:00
Dmitriy Dumanskiy
b59336142f deprecate own ConcurrentSet for removal (#8340)
Motivation:

Java since version 6 has the wrapper for the ConcurrentHashMap that could be created via Collections.newSetFromMap(map). So no need to create own ConcurrentSet class. Also, since netty plans to switch to Java 8 soon there is another method for that - ConcurrentHashMap.newKeySet().
For now, marking this class @deprecated would be enough, just to warn users who use netty's ConcurrentSet. After switching to Java 8 ConcurrentSet should be removed and replaced with ConcurrentHashMap.newKeySet().

Modification:

ConcurrentSet deprecated.
2018-10-15 19:36:05 +02:00
Norman Maurer
a542d4d78b
Increase test timeout (#8385)
Motivation:

It has shown that the used test timeout may be too low when the CI is busy.

Modifications:

Increase timeout to 3 seconds.

Result:

Less false-positives.
2018-10-15 15:10:22 +02:00
Norman Maurer
4a2d03542b Exclude mainframer related files from git 2018-10-14 13:20:18 +02:00
Nick Hill
7062ceedb0 Simplify ByteBufInputStream.readLine() logic (#8380)
Motivation:

While looking at the nice optimization done in
https://github.com/netty/netty/pull/8347 I couldn't help noticing the
logic could be simplified further. Apologies if this is just my OCD and
inappropriate!

Modifications:

Reduce amount of code used for ByteBufInputStream.readLine()

Result:

Slightly smaller and simpler code
2018-10-13 06:24:40 +02:00
Norman Maurer
adb4ce1f31
Use MACOSX_DEPLOYMENT_TARGET=10.6 when compile native transport on MacOS (#8379)
Motivation:

MACOSX_DEPLOYMENT_TARGET=10.6 needs to be used as everything before is not supported in 10.14 anymore. 10.6 was released 2009 so this should be a safe thing to do.

Modifications:

Use MACOSX_DEPLOYMENT_TARGET=10.6

Result:

Be able to compile on MacOS 10.14
2018-10-13 04:25:56 +02:00
Norman Maurer
aae7cdca96
Prevent NPE when attempting to set client key material with no alias (#8378)
Motivation:

It is possible that a client is unable to locate a certificate alias given the list of issuers and key types. In this case the X509KeyManager
will return a null which when past to the OpenSslKeyMaterialProvider implementation may produce a NPE. If no matching alias could be found we should not
call OpenSslKeyMaterialProvider at all which is also consistent what OpenJDK does.

Modifications:

- Add null check before calling OpenSslKeyMaterialProvider
- Add unit test.

Result:

No more NPE caused by passing null as client alias.
2018-10-12 09:27:46 +02:00
Johno Crawford
5b3b8db07f epoll_wait produces an EINVAL error since 4.1.30 (#8350)
Motivation:

epoll_wait should work in 4.1.30 like it did in 4.1.29.

Modifications:

Revert Integer.MAX_VALUE back to MAX_SCHEDULED_TIMERFD_NS (999,999,999).
Add unit test.

Result:

epoll_wait will no longer throw EINVAL.
2018-10-12 05:02:41 +02:00
Norman Maurer
2a4bb346cf
Correctly parse /etc/resolv.conf when contain multiple entries for searchdomain. (#8351)
Motivation:

ba594bcf4a added a utility to parse searchdomains defined in /etc/resolv.conf but did not correctly handle the case when multiple are defined that are seperated by either whitespace or tab.

Modifications:

- Correctly parse multiple entries
- Add unit test.

Result:

Correctly parse multiple searchdomain entries.
2018-10-12 05:00:32 +02:00
Norman Maurer
652650b0db
Correctly decrement pending bytes when submitting AbstractWriteTask fails. (#8349)
Motivation:

Currently we may end up in the situation that we incremented the pending bytes before submitting the AbstractWriteTask but never decrement these again if the submitting of the task fails. This may result in incorrect watermark handling.

Modifications:

- Correctly decrement pending bytes if subimitting of task fails and also ensure we recycle it correctly.
- Add unit test.

Result:

Fixes https://github.com/netty/netty/issues/8343.
2018-10-11 18:46:10 +02:00
Dmitriy Dumanskiy
0e4186c552 deprecate IntegerHolder for removal (#8339)
Motivation:

Seems like IntegerHolder counterHashCode field is the very old legacy field that is no longer used. Should be marked as deprecated and removed in the future versions.

Modification:

IntegerHolder class, InternalThreadLocalMap.counterHashCode() and InternalThreadLocalMap.setCounterHashCode(IntegerHolder counterHashCode) are now deprecated.
2018-10-11 14:59:47 +08:00
Francesco Nigro
83dc3b503e ByteBufInputStream is always allocating a StringBuilder instance (#8347)
Motivation:

Avoid creating any StringBuilder instance if
ByteBufInputStream::readLine isn't used

Modifications:

The StringBuilder instance is lazy allocated on demand and
are added new test case branches to address the increased
complexity of ByteBufInputStream::readLine

Result:

Reduced GC activity if ByteBufInputStream::readLine isn't used
2018-10-11 14:56:29 +08:00
Jussi Virtanen
fc28bccdf1 Fix SelectableChannel support in NioEventLoop (#8344)
Motivation:

Unless the 'io.netty.noKeySetOptimization' system property is set,
registering a SelectableChannel instance to a NioEventLoop results
in a ClassCastException:

    io.netty.channel.nio.SelectedSelectionKeySetSelector cannot be cast
        to java.nio.channels.spi.AbstractSelector

Modifications:

Instead of 'selector', pass 'unwrappedSelector' to SelectableChannel.

Result:

It is possible to register a SelectableChannel instance without
setting the 'io.netty.noKeySetOptimization' system property.
2018-10-09 12:11:07 +08:00
Dmitriy Dumanskiy
6cebb6069b remove unnecessary vararg argument in PooledByteBufAllocator (#8338)
Motivation:

No need in varargs, the method always accepts array.

Modification:

... replaced with []
2018-10-05 19:06:44 +08:00
Matteo Merli
3a96e7373b Added option to do busy-wait on epoll (#8267)
Motivation:

Add an option (through a SelectStrategy return code) to have the Netty event loop thread to do busy-wait on the epoll.

The reason for this change is to avoid the context switch cost that comes when the event loop thread is blocked on the epoll_wait() call.

On average, the context switch has a penalty of ~13usec.

This benefits both:

The latency when reading from a socket
Scheduling tasks to be executed on the event loop thread.
The tradeoff, when enabling this feature, is that the event loop thread will be using 100% cpu, even when inactive.

Modification:

Added SelectStrategy option to return BUSY_WAIT
Epoll loop will do a epoll_wait() with no timeout
Use pause instruction to hint to processor that we're in a busy loop
Result:

When enabled, minimizes impact of context switch in the critical path
2018-09-28 22:52:00 +02:00
Eric Anderson
a95b7a791e
Notify http2 error handler before closeStreamLocal on HEADERS write failure (#8332)
Motivation:

When writing an HTTP/2 HEADERS with END_STREAM=1, the application expects
the stream to be closed afterward. However, the write can fail locally
due to HPACK encoder and similar. When that happens we need to make sure
to issue a RST_STREAM otherwise the stream can be closed locally but
orphaned remotely. The RST_STREAM is typically handled by
Http2ConnectionHandler.onStreamError, which will only send a RST_STREAM
if that stream still exists locally.

There are two possible flows for trailers, one handled immediately and
one going through the flow controller. Previously they behaved
differently, with the immedate code calling the error handler after
closing the stream. The immediate code also used a listener for calling
closeStreamLocal while the flow controlled code did so immediately after
the write.

The two code paths also differed in their VoidChannelPromise handling,
but both were broken. The immediate code path called unvoid() only if
END_STREAM=1, however it could always potentially add a listener via
notifyLifecycleManagerOnError(). And the flow controlled code path
unvoided incorrectly, changing the promise completion behavior. It also
passed the wrong promise to closeStreamLocal() in FlowControlledBase.

Modifications:

Move closeStreamLocal handling after calls to onError. This is the
primary change.

Now call closeStreamLocal immediately instead of when the future
completes. This is the more likely correct behavior as it matches that
of DATA frames.

Fix all the VoidChannelPromise handling.

Result:

Http2ConnectionHandler.onStreamError sees the same state as the remote
and issues a RST_STREAM, properly cleaning up the stream.
2018-09-28 10:29:12 -07:00
Roger
6138541033 Avoid repeating the same field and hiding it (#8335)
Motivation

The EpollChannelConfig (same for KQueues) and its subclasses repeatetly declare their own channel field which leads to a 3x repetition for each config instance. Given the fields are protected or package-private it's exposing the code code to "field hiding" bugs.

Modifications

Use the the existing protected channel field from the DefaultChannelConfig class and simply cast it when needed.

Result

Fixes #8331
2018-09-28 17:37:14 +02:00
Norman Maurer
59973e93dd
Ensure X509KeyManager methods are called on the correct time when using server-side and support more methods of ExtendedSSLSession. (#8283)
Motivation:

Before when on server-side we just called the X509KeyManager methods when handshake() was called the first time which is not quite correct as we may not have received the full SSL hello / handshake and so could not extra for example the SNI hostname that was requested.
OpenSSL exposes the SSL_CTX_set_cert_cb function which allows to set a callback which is executed at the correct moment, so we should use it. This also allows us to support more methods of ExtendedSSLSession easily.

Modifications:

- Make use of new methods exposed by netty-tcnative since https://github.com/netty/netty-tcnative/pull/388 to ensure we select the key material at the correct time.
- Implement more methods of ExtendedOpenSslSession
- Add unit tests to ensure we are able to retrieve various things on server-side in the X509KeyManager and so verify it is called at the correct time.
- Simplify code by using new netty-tcnative methods.

Result:

More correct implementation for server-side usage and more complete implemented of ExtendedSSLSession.
2018-09-28 11:34:38 +02:00
Norman Maurer
73acac13f4
Check if hostname validation is supported before trying to use in test. (#8333)
Motivation:

a208f6dc7c added a testcase which uses hostname validation which may not be supported by OpenSSL depending on the version that is used. We should check first before we try to use it.

Modifications:

Add assumeTrue(...) check to ensure hostname validation is supported before trying to run the test.

Result:

No more test-failures on OpenSSL versions < 1.0.2.
2018-09-28 10:54:05 +02:00
Norman Maurer
a208f6dc7c
Do the same extended checks as the JDK when a X509TrustManager is used with the OpenSSL provider. (#8307)
Motivation:

When a X509TrustManager is used while configure the SslContext the JDK automatically does some extra checks during validation of provided certs by the remote peer. We should do the same when our native implementation is used.

Modification:

- Automatically wrap a X509TrustManager and so do the same validations as the JDK does.
- Add unit tests.

Result:

More consistent behaviour. Fixes https://github.com/netty/netty/issues/6664.
2018-09-28 09:19:58 +02:00
root
2d7cb47edd [maven-release-plugin] prepare for next development iteration 2018-09-27 19:00:45 +00:00
root
3a9ac829d5 [maven-release-plugin] prepare release netty-4.1.30.Final 2018-09-27 18:56:12 +00:00
Norman Maurer
b81c8ed55c
Use AuthoritativeDnsServerCache for creating the new redirect stream. (#8316)
* Use AuthoritativeDnsServerCache for creating the new redirect stream.

Motivation:

At the moment if a user wants to provide custom sorting of the nameservers used for redirects it needs to be implemented in two places. This is more complicated as it needs to be.

Modifications:

- Just delegate to the AuthoritativeDnsServerCache always as we fill it before we call newRedirectDnsServerStream anyway.

Result:

Easier way for the user to implement custom sorting.
2018-09-27 19:45:58 +02:00
Norman Maurer
5650db5826
Add cache for CNAME mappings resolved during lookup of DNS entries. (#8314)
* Add cache for CNAME mappings resolved during lookup of DNS entries.

Motivation:

If the CNAMEd hostname is backed by load balancing component, typically the final A or AAAA DNS records have small TTL. However, the CNAME record itself is setup with longer TTL.

For example:
* x.netty.io could be CNAMEd to y.netty.io with TTL of 5 min
* A / AAAA records for y.netty.io has a TTL of 0.5 min

In current Netty implementation, original hostname is saved in resolved cached with the TTL of final A / AAAA records. When that cache entry expires, Netty recursive resolver sends at least two queries — 1st one to be resolved as CNAME record and the 2nd one to resolve the hostname in CNAME record.
If CNAME record was cached, only the 2nd query would be needed most of the time. 1st query would be needed less frequently.

Modifications:

Add a new CnameCache that will be used to cache CNAMEs and so may reduce queries.

Result:

Less queries needed when CNAME is used.
2018-09-27 17:05:35 +02:00
Norman Maurer
70efd25801
Add docker-compose config to run with Java12 (#8327)
Motivation:

The first EA builds for Java12 are released so we should allow to run with these in our docker-compose setup.

Modifications:

Add docker-compose configs for Java12.

Result:

Be able to run easily with Java12 as well.
2018-09-27 12:47:17 +02:00
Norman Maurer
652650e127
Fix leak in SniClientJava8TestUtil (#8326)
Motivation:

4d1458604a did fix some leaks in SniClientTest but missed the ones in SniClientJava8TestUtil.

Modifications:

Correctly release SslContext.

Result:

No more leaks in SNI tests.
2018-09-27 09:32:41 +02:00
Norman Maurer
9acd9273c1
Allow to run tests with leak detection enabled. (#8323)
Motivation:

We should add some command to be able to run all tests with leak detection enabled. This will then be used on the CI during PR builds.

Modifications:

Add new docker-compose config to run with leak-detection enabled.

Result:

Easy way to enable leak detection while running tests via docker.
2018-09-27 09:13:28 +02:00