NowChess/NowChessSystems
4
0
Fork 0
Code Issues Pull Requests 1 Packages Projects Releases Wiki Activity

feat(coordinator): scaffold microservice for <300ms failover and load balancing

Browse Source 
- Add coordinator module with gRPC stream-based instance health detection
- Implement InstanceHeartbeatService in core: bidirectional stream to coordinator every 200ms
- Track game subscriptions per core via Redis Sets (SADD/SREM)
- Add gRPC handlers for batch resubscribe/unsubscribe/evict/drain operations
- Implement coordinator services: InstanceRegistry, FailoverService, LoadBalancer, AutoScaler, CacheEvictionManager
- Add REST API for metrics and manual failover/rebalance/scaling
- Proto definition: coordinator_service.proto with HeartbeatStream + batch game operations
- Failover timeline: gRPC stream drop (50-200ms) → game migration (<300ms target)
- Support for Argo Rollouts auto-scaling (k8s CRD patching via Fabric8 client)

Note: Proto compilation issues documented in COORDINATOR_IMPLEMENTATION.md. Requires:
- Add task dependency: tasks.compileScala dependsOn tasks.compileJava
- Fix deprecated @Inject var = _ → = uninitialized syntax
- Implement remaining service methods (gRPC clients, FailoverService distribution)

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
This commit is contained in:
Janis
2026-04-26 08:34:53 +02:00
parent 83f84371be
commit f327441089
23 changed files with 1526 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
.idea/gradle.xml
Generated
+2
View File
@@ -13,10 +13,12 @@
<option value="$PROJECT_DIR$/modules/account" />
<option value="$PROJECT_DIR$/modules/api" />
<option value="$PROJECT_DIR$/modules/bot" />
<option value="$PROJECT_DIR$/modules/coordinator" />
<option value="$PROJECT_DIR$/modules/core" />
<option value="$PROJECT_DIR$/modules/io" />
<option value="$PROJECT_DIR$/modules/json" />
<option value="$PROJECT_DIR$/modules/rule" />
<option value="$PROJECT_DIR$/modules/store" />
<option value="$PROJECT_DIR$/modules/ws" />
</set>
</option>
.idea/scala_compiler.xml
Generated
+1 -1
View File
@@ -5,7 +5,7 @@
<option name="deprecationWarnings" value="true" />
<option name="uncheckedWarnings" value="true" />
</profile>
<profile name="Gradle 2" modules="NowChessSystems.modules.account.integrationTest,NowChessSystems.modules.account.main,NowChessSystems.modules.account.native-test,NowChessSystems.modules.account.quarkus-generated-sources,NowChessSystems.modules.account.quarkus-test-generated-sources,NowChessSystems.modules.account.scoverage,NowChessSystems.modules.account.test,NowChessSystems.modules.bot.main,NowChessSystems.modules.bot.scoverage,NowChessSystems.modules.bot.test,NowChessSystems.modules.core.integrationTest,NowChessSystems.modules.core.main,NowChessSystems.modules.core.native-test,NowChessSystems.modules.core.quarkus-generated-sources,NowChessSystems.modules.core.quarkus-test-generated-sources,NowChessSystems.modules.core.scoverage,NowChessSystems.modules.core.test,NowChessSystems.modules.io.integrationTest,NowChessSystems.modules.io.main,NowChessSystems.modules.io.native-test,NowChessSystems.modules.io.quarkus-generated-sources,NowChessSystems.modules.io.quarkus-test-generated-sources,NowChessSystems.modules.io.scoverage,NowChessSystems.modules.io.test,NowChessSystems.modules.json.main,NowChessSystems.modules.json.scoverage,NowChessSystems.modules.json.test,NowChessSystems.modules.rule.integrationTest,NowChessSystems.modules.rule.main,NowChessSystems.modules.rule.native-test,NowChessSystems.modules.rule.quarkus-generated-sources,NowChessSystems.modules.rule.quarkus-test-generated-sources,NowChessSystems.modules.rule.scoverage,NowChessSystems.modules.rule.test,NowChessSystems.modules.ui.main,NowChessSystems.modules.ui.scoverage,NowChessSystems.modules.ui.test,NowChessSystems.modules.ws.integrationTest,NowChessSystems.modules.ws.main,NowChessSystems.modules.ws.native-test,NowChessSystems.modules.ws.quarkus-generated-sources,NowChessSystems.modules.ws.quarkus-test-generated-sources,NowChessSystems.modules.ws.scoverage,NowChessSystems.modules.ws.test">
<profile name="Gradle 2" modules="NowChessSystems.modules.account.integrationTest,NowChessSystems.modules.account.main,NowChessSystems.modules.account.native-test,NowChessSystems.modules.account.quarkus-generated-sources,NowChessSystems.modules.account.quarkus-test-generated-sources,NowChessSystems.modules.account.scoverage,NowChessSystems.modules.account.test,NowChessSystems.modules.bot.main,NowChessSystems.modules.bot.scoverage,NowChessSystems.modules.bot.test,NowChessSystems.modules.coordinator.integrationTest,NowChessSystems.modules.coordinator.main,NowChessSystems.modules.coordinator.native-test,NowChessSystems.modules.coordinator.quarkus-generated-sources,NowChessSystems.modules.coordinator.quarkus-test-generated-sources,NowChessSystems.modules.coordinator.scoverage,NowChessSystems.modules.coordinator.test,NowChessSystems.modules.core.integrationTest,NowChessSystems.modules.core.main,NowChessSystems.modules.core.native-test,NowChessSystems.modules.core.quarkus-generated-sources,NowChessSystems.modules.core.quarkus-test-generated-sources,NowChessSystems.modules.core.scoverage,NowChessSystems.modules.core.test,NowChessSystems.modules.io.integrationTest,NowChessSystems.modules.io.main,NowChessSystems.modules.io.native-test,NowChessSystems.modules.io.quarkus-generated-sources,NowChessSystems.modules.io.quarkus-test-generated-sources,NowChessSystems.modules.io.scoverage,NowChessSystems.modules.io.test,NowChessSystems.modules.json.main,NowChessSystems.modules.json.scoverage,NowChessSystems.modules.json.test,NowChessSystems.modules.rule.integrationTest,NowChessSystems.modules.rule.main,NowChessSystems.modules.rule.native-test,NowChessSystems.modules.rule.quarkus-generated-sources,NowChessSystems.modules.rule.quarkus-test-generated-sources,NowChessSystems.modules.rule.scoverage,NowChessSystems.modules.rule.test,NowChessSystems.modules.store.integrationTest,NowChessSystems.modules.store.main,NowChessSystems.modules.store.native-test,NowChessSystems.modules.store.quarkus-generated-sources,NowChessSystems.modules.store.quarkus-test-generated-sources,NowChessSystems.modules.store.scoverage,NowChessSystems.modules.store.test,NowChessSystems.modules.ui.main,NowChessSystems.modules.ui.scoverage,NowChessSystems.modules.ui.test,NowChessSystems.modules.ws.integrationTest,NowChessSystems.modules.ws.main,NowChessSystems.modules.ws.native-test,NowChessSystems.modules.ws.quarkus-generated-sources,NowChessSystems.modules.ws.quarkus-test-generated-sources,NowChessSystems.modules.ws.scoverage,NowChessSystems.modules.ws.test">
<option name="deprecationWarnings" value="true" />
<option name="uncheckedWarnings" value="true" />
<parameters>