Separate scheduler for subs (#603)

src/main/kotlin/io/emeraldpay/dshackle/config/context/MultistreamsConfig.kt

@@ -25,6 +25,8 @@ open class MultistreamsConfig(val beanFactory: ConfigurableListableBeanFactory)
         callTargetsHolder: CallTargetsHolder,
         @Qualifier("headScheduler")
         headScheduler: Scheduler,
+        @Qualifier("subScheduler")
+        subScheduler: Scheduler,
         tracer: Tracer,
         multistreamEventsScheduler: Scheduler,
         indexConfig: IndexConfig,
@@ -41,6 +43,7 @@ open class MultistreamsConfig(val beanFactory: ConfigurableListableBeanFactory)
                         chain,
                         cachesFactory,
                         headScheduler,
+                        subScheduler,
                         tracer,
                         multistreamEventsScheduler,
                         indexConfig.getByChain(chain),
@@ -54,6 +57,7 @@ open class MultistreamsConfig(val beanFactory: ConfigurableListableBeanFactory)
         chain: Chain,
         cachesFactory: CachesFactory,
         headScheduler: Scheduler,
+        subScheduler: Scheduler,
         tracer: Tracer,
         multistreamEventsScheduler: Scheduler,
         logsOracleConfig: IndexConfig.Index?,
@@ -71,7 +75,7 @@ open class MultistreamsConfig(val beanFactory: ConfigurableListableBeanFactory)
             headScheduler,
             cs.makeCachingReaderBuilder(tracer),
             cs::localReaderBuilder,
-            cs.subscriptionBuilder(headScheduler),
+            cs.subscriptionBuilder(subScheduler),
             logsOracleConfig,
             logsOracleScheduler,
             tracer,

src/main/kotlin/io/emeraldpay/dshackle/config/context/SchedulersConfig.kt

@@ -41,6 +41,11 @@ open class SchedulersConfig {
         return makeScheduler("head-scheduler", 4, monitoringConfig)
     }
 
+    @Bean
+    open fun subScheduler(monitoringConfig: MonitoringConfig): Scheduler {
+        return makeScheduler("sub-scheduler", 4, monitoringConfig)
+    }
+
     @Bean
     open fun logsOracleScheduler(monitoringConfig: MonitoringConfig): Scheduler {
         return makeScheduler("logs-oracle", 4, monitoringConfig)
@@ -77,7 +82,7 @@ open class SchedulersConfig {
     }
 
     private fun makeScheduler(name: String, size: Int, monitoringConfig: MonitoringConfig): Scheduler {
-        return Schedulers.fromExecutorService(makePool(name, size * threadsMultiplier, monitoringConfig))
+        return Schedulers.fromExecutorService(makePool(name, size, monitoringConfig))
     }
 
     private fun makePool(name: String, size: Int, monitoringConfig: MonitoringConfig): ExecutorService {