This fixes sign-compare and maybe-unintialized. An unused-value warning
remains.
I changed LogHelper to always call abort so the compiler would know the
method does not return, which fixed the maxbe-uninitialized warning.
If onTransportActive ran while SendPing was already scheduled, we would
schedule another SendPing, which seems fine, but the server might observe
us sending pings too quickly, and make us GOAWAY.
Fixes#3274.
Previously only when all addresses returned by NameResolver are
balancers would GRPCLB be forced. This change is a follow-up of
https://github.com/grpc/grpc/pull/10258
As discussed in #1914, we need CallCredentials and MoreCallCredentials
to be stable, but there's less of a strong need for the contents of
CallCredentials to be stable. We're willing to commit to the name,
without needing to commit to the plumbing.
* netty: support `status()` on Headers
Recent Netty change a91df58ca1
caused the `status()` method to be invoked, which AbstractHttp2Headers does not implement.
This change is necesary to upgrade to Netty 4.1.14
```
:grpc-benchmarks:compileJavaC:\jenkins\workspace\gRPC-Java-PR-Windows\benchmarks\src\main\java\io\grpc\benchmarks\qps\AbstractConfigurationBuilder.java:58: warning: [MissingOverride] getDefaultValue implements method in Param; expected @Override
public String getDefaultValue() {
^
(see http://errorprone.info/bugpattern/MissingOverride)
Did you mean '@Override public String getDefaultValue() {'?
error: warnings found and -Werror specified
1 error
1 warning
FAILED
FAILURE: Build failed with an exception.
```
Use deadline on client calls lead to create TimeoutException even
if deadline not occurs yet. fillStacktrack very expensive operation
that allocate many unnecessary objects in heap. Now exception
creates only when deadline occurs.
Close#3272
Coupled with the similar change on server-side, this removes the need for a
thread when using Netty. For InProcess and OkHttp, it would allow us to let the
user to provide the scheduler for tests or application-wide thread sharing.
This will break if
7f1ac34d41,
2f6e2c87ab,
a3a5420922
are reverted:
```
io.grpc.ContextTest > initContextWithCustomClassLoaderWithCustomLogger FAILED
java.lang.ExceptionInInitializerError
at io.grpc.ContextTest$LoadMeWithStaticTestingClassLoader.run(ContextTest.java:789)
at io.grpc.ContextTest.initContextWithCustomClassLoaderWithCustomLogger(ContextTest.java:760)
Caused by:
java.lang.RuntimeException: Storage override had failed to initialize
at io.grpc.Context.storage(Context.java:134)
at io.grpc.Context.current(Context.java:163)
at io.grpc.ContextTest$LoadMeWithStaticTestingClassLoader$1.publish(ContextTest.java:773)
at java.util.logging.Logger.log(Logger.java:738)
at java.util.logging.Logger.doLog(Logger.java:765)
at java.util.logging.Logger.log(Logger.java:875)
at io.grpc.Context.<clinit>(Context.java:122)
... 2 more
```
Using static initialization is possible, but quite complex to handle
logging and circular loading. Lazy loading prevents an entire class of
circular dependencies.
This is only implementing how subchannel state changes are hooked up to channel state APIs. Debates in state semantics and transition rules for loadbalanced channel such as #2873 are not addressed. Any changes in state semantics and transition rules in the future can be easily adapted.
For Netty, this reduces the number of threads necessary for servers (although
until channel is converted, actual number of threads isn't impacted) and
naturally reduces contention and timeout latency.
For InProcess, this gets us closer to allowing applications to provide all
executors, which is especially useful during tests.
Class.forName(String) is understood by ProGuard, removing the need for
manual ProGuard configuration and allows ProGuard to rename the provider
classes. Previously the provider classes could not be renamed.
Fixes#2633
Previously anyone could create metadata keys with a leading ":", due to not having a way to prevent it. This change effectively only allows internal code to make use of this.
It was not convenient to test in some scenarios without having a field in the message. All `SimpleResponse` messages were `equals` to each other. Users might not want to assume reference identity/inequality between server and client for equal/unequal messages even for InProcess. Even with reference identity, it would still be inconvenient if their were hundreds of messages.
To have a non-proto based String to String service instead is another solution, but the usefulness of this proto based service would still be too limited.
* refactor SubchannelImpl -> AbstractSubchannel
The old `SubchannelImpl` is actually not implementing anything, and the old `SubchannelImplImpl` has a weird name.
This has a number of small benefits. First, it makes stack traces
easier to read. For example:
Old class names:
```
ServerCalls$1$1.class
ServerCalls$1.class
ServerCalls$2$1.class
ServerCalls$2.class
```
New class names:
```
ServerCalls$StreamingServerCallHandler.class
ServerCalls$StreamingServerCallHandler$StreamingServerCallListener.class
ServerCalls$UnaryServerCallHandler.class
ServerCalls$UnaryServerCallHandler$UnaryServerCallListener.class
```
This is much easier to read quickly, espcially if line numbers don't
match between HEAD and the code that prints the stack trace.
Another benefit of this is that it drops a class file from the jar
(`EmptyServerCallListener`).
Lastly, it makes it easier in the future to test, since the specific
class can be referenced from a test. Traditionally this class
hasn't been easy to test.
Moved the following APIs from `io.grpc.testing.TestUtils` to `io.grpc.internal.TestUtils`:
`InetSocketAddress testServerAddress(String host, int port)`
`InetSocketAddress testServerAddress(int port)`
`List<String> preferredTestCiphers()`
`File loadCert(String name)`
`X509Certificate loadX509Cert(String fileName)`
`SSLSocketFactory newSslSocketFactoryForCa(Provider provider, File certChainFile)`
`void sleepAtLeast(long millis)`
APIs not to be moved:
`ServerInterceptor recordRequestHeadersInterceptor()`
`ServerInterceptor recordServerCallInterceptor()`
Eric Anderson
Stephen Haberman
ZHANG Dapeng
Eric Gribkoff
Kun Zhang
Carl Mastrangelo
Vladimir Gordiychuk
Ryan Michela
zpencer
Ian Haken
Mehrdad Afshari
Bogdan Drutu
Matt Kwong