Bump version.zipkin.reporter from 2.17.1 to 3.4.0

[dependabot]

Bumps version.zipkin.reporter from 2.17.1 to 3.4.0.
Updates io.zipkin.reporter2:zipkin-reporter from 2.17.1 to 3.4.0

Updates io.zipkin.reporter2:zipkin-sender-urlconnection from 2.17.1 to 3.4.0

Release notes

Sourced from io.zipkin.reporter2:zipkin-sender-urlconnection's releases.

Zipkin Reporter 3.4 deprecates AsyncReporter/SpanHandler queuedMaxBytes and disables it by default.

When introduced, AsyncReporter had three ways to trigger a queue flush:

• queuedMaxSpans - when the number of spans in the queue exceeds a threshold
• queuedMaxBytes - when the size of the spans in the queue exceeds a threshold
• messageTimeout - when a span has been in the queue longer than a threshold

queuedMaxBytes was deprecated because requires time in the critical path, to calculate the size of a span to make sure it doesn't breach the threshold. This is problematic in tools that check for pinning, like Virtual Threads.

Thanks a lot to @​reta for sorting this out!

Full Changelog: https://github.com/openzipkin/zipkin-reporter-java/compare/3.3.0..3.4.0

Zipkin Reporter 3.3 adds a BaseHttpSender type, which eases http library integration. It also adds HttpEndpointSupplier which supports dynamic endpoint discovery such as from Eureka, as well utilities to create constants or rate-limit suppliers. Finally, brave users get a native PROTO3 encoder through the new MutableSpanBytesEncoder type.

These features were made in support of spring-boot, but available to any user with no new dependencies. For example, the PROTO encoder adds no library dependency, even if it increases the size of zipkin-reporter-brave by a couple dozen KB. A lion's share of thanks goes to @​reta and @​anuraaga who were on design and review duty for several days leading to this.

Here's an example of pulling most of these things together, integrating a sender with spring-cloud-loadbalancer (a client-side loadbalancer library).

This endpoint supplier will get the configuration endpoint value and look up the next target to use with the loadBalancerClient. The rate limiter will ensure a gap of 30 seconds between queries. While below is hard-coded, it covers some routine advanced features formerly only available in spring-cloud-sleuth. Now, anyone can use them!

@Configuration(proxyBeanMethods = false)
public class ZipkinDiscoveryConfiguration {
  @Bean HttpEndpointSupplier.Factory loadbalancerEndpoints(LoadBalancerClient loadBalancerClient) {
    LoadBalancerHttpEndpointSupplier.Factory httpEndpointSupplierFactory =
        new LoadBalancerHttpEndpointSupplier.Factory(loadBalancerClient);
    // don't ask more than 30 seconds (just to show)
    return HttpEndpointSuppliers.newRateLimitedFactory(httpEndpointSupplierFactory, 30);
  }
record LoadBalancerHttpEndpointSupplier(LoadBalancerClient loadBalancerClient, URI virtualURL)
implements HttpEndpointSupplier {
record Factory(LoadBalancerClient loadBalancerClient) implements HttpEndpointSupplier.Factory {
  @Override public HttpEndpointSupplier create(String endpoint) {
    return new LoadBalancerHttpEndpointSupplier(loadBalancerClient, URI.create(endpoint));
  }
}
@Override public String get() {
ServiceInstance instance = loadBalancerClient.choose(virtualURL.getHost());
if (instance != null) {
return instance.getUri() + virtualURL.getPath();
}
throw new IllegalArgumentException(virtualURL.getHost() + " is not registered");
}
@Override public void close() {
}

</tr></table>

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Commits

• 0af48b8 [maven-release-plugin] prepare release 3.4.0
• 22b6727 Adds spring-beans context test and defaults to Spring 5 (#265)
• fcc67bb Deprecates AsyncReporter/SpanHandler queuedMaxBytes (#264)
• e54db40 ci: adds lint check, fixes yaml formatting and unnecessary auth (#263)
• f30ee66 AsyncReporter/SpanHandler: make queuedMaxBytes=0 disable pre-flight size chec...
• 0c62f8b benchmarks: moves dependency scope to test (#262)
• 939b6e4 deps: fix kafka floor JRE to 8 and updates all libs to latest (#261)
• 16686ce license: removes copyright year and uses SPDX ID (#257)
• f3b9cf7 [maven-release-plugin] prepare for next development iteration
• 9b4489e [maven-release-plugin] prepare release 3.3.0
• Additional commits viewable in compare view

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[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.