Fix provider update race condition and Fury thread-local instance churn

[Copilot]

Two independent bugs: a race condition causing unavailableProviderException under load when new providers register, and unbounded Fury instance creation causing full GC at high throughput.

AbstractCluster: connection-before-address ordering (#1490)

updateAllProviders and updateProviders were registering addresses in AddressHolder before connections were established in ConnectionHolder. This opened a window where load balancers could select a provider whose transport wasn't ready yet.

Fix: establish connections first, then make addresses visible.

// Before — address visible before connection exists
addressHolder.updateAllProviders(providerGroups);
connectionHolder.updateAllProviders(providerGroups);

// After — connection ready before address is discoverable
connectionHolder.updateAllProviders(providerGroups);
addressHolder.updateAllProviders(providerGroups);

FurySerializer: stop destroying thread-local Fury instances (#1424)

Every encode/decode call ended with fury.clearClassLoader(contextClassLoader) in a finally block, which destroys the thread-local Fury instance unconditionally. The next call reconstructs it from scratch — at 20k TPS this produced ~4,500 Fury instances and triggered FGC.

Fix: remove clearClassLoader from the hot path. fury.setClassLoader(contextClassLoader) at the start of each call already handles classloader changes correctly (it creates a new Fury instance only when the classloader actually differs), so removing the teardown allows thread-local instances to be reused across calls.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• repository.jboss.org
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java -classpath /home/REDACTED/work/sofa-rpc/sofa-rpc/.mvn/wrapper/maven-wrapper.jar -Dmaven.home=/home/REDACTED/work/sofa-rpc -Dmaven.multiModuleProjectDirectory=/home/REDACTED/work/sofa-rpc/sofa-rpc org.apache.maven.wrapper.MavenWrapperMain -f pom.xml -B -V -e -Dfindbugs.skip -Dcheckstyle.skip -Dpmd.skip=true -Dspotbugs.skip -Denforcer.skip -Dmaven.javadoc.skip -DskipTests -Dmaven.test.skip.exec -Dlicense.skip=true (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.