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expires (#4990) (#4997)
Previously the client waits ~10 seconds until the fallback timer has
expired. While the timer is useful to address the long tail, it
shouldn't delay using the fallback in case of obvious errors, like the
channel failing to connect or an UNIMPLEMENTED response.
This is a cherry-pick of b701e8920daaccf9e6eb2916d2ea94da8df74be5 from master.
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The addresses from the string dump of the LoadBalanceResponse proto is
in binary format and not human-readable. We will log the
BackendAddressGroups when using a new list from the balancer. The
original logging of LoadBalanceResponse is downgraded to FINER level.
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This is a safer way to hide the classes, because they will not appear
in public targets for some build configurations.
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This is an API used to coordinate across packages and must live in
`io.grpc`.
Prepending `Internal` makes it easier to detect and hide this class
from public visibility when using certain build tools.
fixes #4796
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These attributes can be used by ALTS-specific code to determine whether
ALTS or TLS should be used.
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This annotation will enable Java APT to generate code.
Addresses part of #3173.
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This PR adds an automatic gradle format checker and reformats all the *.gradle files. After this, new changes to *.gradle files will fail to build if not in good format, just like checkStyle failure.
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This is the same practice as #2833
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Deprecate static builder method, Keys.of(), add a notice of plans to
remove keys(), emphasize that the name is only a debug label.
The `@ExperimentalAPI` is left on the class because there are still
issues around hashCode/equals.
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This update automatically adds generated sources and proto IDLs to the
`idea` plugin.
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backendlist (#4238)
This is to conform with the GRPCLB spec. The spec doesn't (yet) define
the actual timeout. We choose 10 seconds here arbitrarily. It may be
configurable in the future.
This will fix internal bug b/74410243
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A band aid for #3284, to make its symptoms less noticeable.
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grpclb: enter fallback mode immediately when balancer and all backend connections are lost
Changed according to updated spec.
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Spies are really magical and easily produce unexpected results. Using them in
tests can easily yield tests that don't do what you think they do. Delegation
is much safer when possible.
Delegation doesn't work when methods `return true`, final methods, and with
restricted visibility, though. So CensusModulesTest and
MaxConnectionIdleManagerTest are left as-is.
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addresses
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The channelz service must not live in io.grpc.internal, and channelz
needs to be able to get the identifier of the entities it
tracks. Since io.grpc can not refer to io.grpc.internal, the LogId
must be moved out of internal.
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Previously fallback mode can be entered only if the client has not
received any server list and the fallback timeout has expired.
Now the fallback timer is started when the stream to the balancer is broken
AND there is no ready Subchannels. Fallback mode is activated when the
timer expires. When a new server list is received from the balancer, either
the fallback timer is cancelled, or fallback mode is exited.
Also fixed a bug that the fallback timer should've been cancelled when GrpcState
is shut down.
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This moves away from the global String-based Span name registry which
is not as flexible as we desire.
Also renamed the option name to be more accurate. This is not
API-breaking because the origianl addition to MethodDescriptor and
code-gen didn't make it into the 1.7.0 release.
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* MethodDescriptor is lazy loaded, so protobuf loading only happens on demand. This also means tracing registration happens on demand.
* The names of the getters all being with `method`. This makes it harder for autocomplete to pick them up.
* A new field is used, which matches the getter name. Rather than make the new-getters reference the old-fields, make the old-fields reference the new getters. This makes removal of the old-fields a simple operation.
* The getters may not be inlineable, but thats an easy fix if it ends up being a problem. Not worth premature optimization (but is worth future work).
The expected timeline for this is adding this to the 1.8 cut, and deprecating the old-fields. They will be removed in 1.9.
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Resolves #3355
GrpclbLoadBalancer should use PickResult.withDrop() instead of PickResult.withError() when dropping RPCs.
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This is a more favorable approach than #3467. Doing the registration
in MethodDescriptor should allow us to deregister in case the
generated stub and its MethodDescriptors are garbage-collected
routinely, e.g., if they are loaded by a separate ClassLoader.
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Two methods, outboundMessageSent() and inboundMessageRead() are added to StreamTracer in order to associate individual messages with sizes. Both types of sizes are optional, as allowed by Census tracing.
Both methods accept a sequence number as the type ID as required by Census. The original outboundMesage() and inboundMessage() are also replaced by overrides that take the sequence number, to better match the new methods. The deprecation of the old overrides are tracked by #3460
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The GRPCLB client will use the backend addresses from resolver if it has not received any server list from any balancer after a certain timeout (10s).
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If the option becomes popular, we can just remove the version.
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GrpclbLoadBalancer can work in non-GRPCLB (delegate) mode according to
name resolution results. Previously the policy selection, delegation
and GRPCLB logic are in the same file, which is not very readable. It
will get worse as we going to implement policy fallback logic soon.
This PR refactors the GRPCLB logic out, and makes GrpclbLoadBalancer
focus on the policy selection and delegation logic.
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