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Multiple queries cause TimeoutException when using @Transactional annotation

See original GitHub issue

To implement Pagination API, I’ve confirmed that R2dbcTimeoutException is being occurred in the process of using findAll and count queries in a single DTO response with Mono zipWith operator for a particular domain.

@Override
@Transactional(transactionManager = "someDomainTransactionManager", readonly = true)
public Mono<PaginationResponse> getProjects(DomainRequest request) {
        final var pageable = PageRequest.of(request.page() - 1, request.pageSize());
        return domainRepository.findAllByOrderByCreatedDateDesc(pageable)
                                .collectList()
                                // ERROR in here : Count Query returns null
                                .zipWith(domainRepository.count())
                                .map(entityTuples -> new CustomPageImpl<>(entityTuples.getT1(),
                                                                          pageable,
                                                                          entityTuples.getT2()))
                                .flatMap(this::mapToPaginationResponse);
}

Notably, I’m configuring ConnectionFactory and TransactionManager for each DB Connection because the service uses a separate database for each domain I wanna implement.

@Configuration
@EnableConfigurationProperties(SomeR2dbcProperties.class)
@EnableR2dbcRepositories(basePackages = "me.g1tommy.some",
                         entityOperationsRef = "someEntityTemplate")
public class SomeDBConfig {

    private final SomeR2dbcProperties r2dbcProperties;

    @Bean
    @Qualifier("someConnectionFactory")
    public ConnectionFactory managementConnectionFactory() {
        var options = ConnectionFactoryOptions.builder()
                                              .from(ConnectionFactoryOptions.parse(r2dbcProperties.some().url()))
                                              .option(ConnectionFactoryOptions.USER, r2dbcProperties.username())
                                              .option(ConnectionFactoryOptions.PASSWORD, r2dbcProperties.password())
                                              .build();
        return ConnectionFactories.get(options);
    }

    @Bean
    public R2dbcTransactionManager someDomainTransactionManager(
        @Qualifier("someConnectionFactory") ConnectionFactory connectionFactory) {
        return new R2dbcTransactionManager(connectionFactory);
    }

    @Bean
    @Qualifier("someDatabaseClient")
    public DatabaseClient someDatabaseClient(
        @Qualifier("someConnectionFactory") ConnectionFactory connectionFactory) {
        var dialect = DialectResolver.getDialect(connectionFactory);
        return DatabaseClient.builder().connectionFactory(connectionFactory)
                             .bindMarkers(dialect.getBindMarkersFactory()).build();
    }

    @Bean
    public R2dbcEntityOperations someEntityTemplate(
        @Qualifier("someConnectionFactory") ConnectionFactory connectionFactory) {
        return new R2dbcEntityTemplate(connectionFactory);
    }

}

As a result, the implemented service method is experiencing an error with the following message:

There is a query still being run here - race -> false

Stacktrace:

org.springframework.dao.QueryTimeoutException: executeMany; SQL [SELECT COUNT(someDomain.idx) FROM someDomain]; null; nested exception is io.r2dbc.spi.R2dbcTimeoutException
	at org.springframework.r2dbc.connection.ConnectionFactoryUtils.convertR2dbcException(ConnectionFactoryUtils.java:221) ~[spring-r2dbc-5.3.21.jar:5.3.21]
	at org.springframework.r2dbc.core.DefaultDatabaseClient.lambda$inConnectionMany$8(DefaultDatabaseClient.java:147) ~[spring-r2dbc-5.3.21.jar:5.3.21]
	at reactor.core.publisher.Flux.lambda$onErrorMap$29(Flux.java:6943) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Flux.lambda$onErrorResume$30(Flux.java:6996) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:94) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxUsingWhen$UsingWhenSubscriber.deferredError(FluxUsingWhen.java:398) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxUsingWhen$RollbackInner.onComplete(FluxUsingWhen.java:475) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onComplete(Operators.java:2058) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onComplete(MonoIgnoreElements.java:89) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxFilter$FilterConditionalSubscriber.onComplete(FluxFilter.java:300) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapConditionalSubscriber.onComplete(FluxMap.java:275) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2400) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapConditionalSubscriber.request(FluxMap.java:295) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxFilter$FilterConditionalSubscriber.request(FluxFilter.java:321) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:186) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapSubscriber.request(FluxMap.java:164) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onSubscribe(MonoIgnoreElements.java:72) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapSubscriber.onSubscribe(FluxMap.java:92) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxFilter$FilterSubscriber.onSubscribe(FluxFilter.java:85) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxFilter$FilterConditionalSubscriber.onSubscribe(FluxFilter.java:219) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapConditionalSubscriber.onSubscribe(FluxMap.java:194) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoDeferContextual.subscribe(MonoDeferContextual.java:55) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Mono.subscribe(Mono.java:4397) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxUsingWhen$UsingWhenSubscriber.onError(FluxUsingWhen.java:364) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxFlatMap$FlatMapMain.checkTerminated(FluxFlatMap.java:842) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxFlatMap$FlatMapMain.drainLoop(FluxFlatMap.java:608) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxFlatMap$FlatMapMain.drain(FluxFlatMap.java:588) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxFlatMap$FlatMapMain.onError(FluxFlatMap.java:451) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxOnAssembly$OnAssemblySubscriber.onError(FluxOnAssembly.java:544) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapSubscriber.onError(FluxMap.java:134) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:106) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators.error(Operators.java:198) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoError.subscribe(MonoError.java:53) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Mono.subscribe(Mono.java:4397) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:103) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapSubscriber.onError(FluxMap.java:134) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators.error(Operators.java:198) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxFlatMap.trySubscribeScalarMap(FluxFlatMap.java:161) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMapMany.subscribeOrReturn(MonoFlatMapMany.java:49) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Flux.subscribe(Flux.java:8452) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxUsingWhen$ResourceSubscriber.onNext(FluxUsingWhen.java:195) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:122) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:151) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:122) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2398) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapSubscriber.request(FluxMap.java:164) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:110) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapSubscriber.onSubscribe(FluxMap.java:92) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoDeferContextual.subscribe(MonoDeferContextual.java:55) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Mono.subscribe(Mono.java:4397) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxUsingWhen.subscribe(FluxUsingWhen.java:104) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoUsingWhen.subscribe(MonoUsingWhen.java:87) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Mono.subscribe(Mono.java:4397) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:128) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoUsingWhen.subscribe(MonoUsingWhen.java:87) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:157) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.complete(MonoIgnoreThen.java:292) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onNext(MonoIgnoreThen.java:187) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:236) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:203) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onComplete(MonoPeekTerminal.java:299) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onComplete(MonoIgnoreElements.java:89) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onComplete(MonoIgnoreElements.java:89) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onComplete(Operators.java:2058) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1817) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.complete(MonoIgnoreThen.java:292) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onNext(MonoIgnoreThen.java:187) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:236) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:203) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onComplete(MonoPeekTerminal.java:299) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:209) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onComplete(MonoIgnoreElements.java:89) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1817) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoCompletionStage.lambda$subscribe$0(MonoCompletionStage.java:83) ~[reactor-core-3.4.19.jar:3.4.19]
	at java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:863) ~[na:na]
	at java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:841) ~[na:na]
	at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510) ~[na:na]
	at java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2147) ~[na:na]
	at com.github.jasync.sql.db.util.FutureUtilsKt.success(FutureUtils.kt:16) ~[jasync-pool-2.0.8.jar:na]
	at com.github.jasync.sql.db.mysql.MySQLConnection.succeedQueryPromise$lambda-12(MySQLConnection.kt:359) ~[jasync-mysql-2.0.8.jar:na]
	at java.base/java.util.Optional.ifPresent(Optional.java:178) ~[na:na]
	at com.github.jasync.sql.db.mysql.MySQLConnection.succeedQueryPromise(MySQLConnection.kt:358) ~[jasync-mysql-2.0.8.jar:na]
	at com.github.jasync.sql.db.mysql.MySQLConnection.onOk(MySQLConnection.kt:227) ~[jasync-mysql-2.0.8.jar:na]
	at com.github.jasync.sql.db.mysql.codec.MySQLConnectionHandler.channelRead0(MySQLConnectionHandler.kt:119) ~[jasync-mysql-2.0.8.jar:na]
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:327) ~[netty-codec-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:299) ~[netty-codec-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:722) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:658) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:584) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.78.Final.jar:4.1.78.Final]
	at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]
Caused by: io.r2dbc.spi.R2dbcTimeoutException: null
	at com.github.jasync.r2dbc.mysql.JasyncStatement$execute$3.invoke(JasyncStatement.kt:141) ~[jasync-r2dbc-mysql-2.0.8.jar:na]
	Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException: 
Error has been observed at the following site(s):
	*__checkpoint ⇢ SQL "SELECT COUNT(someDomain.idx) FROM someDomain" [DatabaseClient]
Original Stack Trace:
		at com.github.jasync.r2dbc.mysql.JasyncStatement$execute$3.invoke(JasyncStatement.kt:141) ~[jasync-r2dbc-mysql-2.0.8.jar:na]
		at com.github.jasync.r2dbc.mysql.JasyncStatement$execute$3.invoke(JasyncStatement.kt:100) ~[jasync-r2dbc-mysql-2.0.8.jar:na]
		at reactor.core.publisher.FluxExtensionsKt$onErrorMap$1.apply(FluxExtensions.kt:206) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxExtensionsKt$onErrorMap$1.apply(FluxExtensions.kt) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Flux.lambda$onErrorMap$29(Flux.java:6943) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Flux.lambda$onErrorResume$30(Flux.java:6996) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:94) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxMap$MapSubscriber.onError(FluxMap.java:134) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Operators.error(Operators.java:198) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxFlatMap.trySubscribeScalarMap(FluxFlatMap.java:161) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoFlatMapMany.subscribeOrReturn(MonoFlatMapMany.java:49) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Flux.subscribe(Flux.java:8452) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxUsingWhen$ResourceSubscriber.onNext(FluxUsingWhen.java:195) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:122) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:151) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:122) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2398) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxMap$MapSubscriber.request(FluxMap.java:164) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:110) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxMap$MapSubscriber.onSubscribe(FluxMap.java:92) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoDeferContextual.subscribe(MonoDeferContextual.java:55) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Mono.subscribe(Mono.java:4397) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxUsingWhen.subscribe(FluxUsingWhen.java:104) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoUsingWhen.subscribe(MonoUsingWhen.java:87) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Mono.subscribe(Mono.java:4397) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:128) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoUsingWhen.subscribe(MonoUsingWhen.java:87) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:157) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.complete(MonoIgnoreThen.java:292) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onNext(MonoIgnoreThen.java:187) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:236) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:203) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onComplete(MonoPeekTerminal.java:299) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onComplete(MonoIgnoreElements.java:89) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onComplete(MonoIgnoreElements.java:89) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onComplete(Operators.java:2058) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1817) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.complete(MonoIgnoreThen.java:292) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onNext(MonoIgnoreThen.java:187) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:236) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:203) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onComplete(MonoPeekTerminal.java:299) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:209) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onComplete(MonoIgnoreElements.java:89) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1817) ~[reactor-core-3.4.19.jar:3.4.19]
		at reactor.core.publisher.MonoCompletionStage.lambda$subscribe$0(MonoCompletionStage.java:83) ~[reactor-core-3.4.19.jar:3.4.19]
		at java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:863) ~[na:na]
		at java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:841) ~[na:na]
		at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510) ~[na:na]
		at java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2147) ~[na:na]
		at com.github.jasync.sql.db.util.FutureUtilsKt.success(FutureUtils.kt:16) ~[jasync-pool-2.0.8.jar:na]
		at com.github.jasync.sql.db.mysql.MySQLConnection.succeedQueryPromise$lambda-12(MySQLConnection.kt:359) ~[jasync-mysql-2.0.8.jar:na]
		at java.base/java.util.Optional.ifPresent(Optional.java:178) ~[na:na]
		at com.github.jasync.sql.db.mysql.MySQLConnection.succeedQueryPromise(MySQLConnection.kt:358) ~[jasync-mysql-2.0.8.jar:na]
		at com.github.jasync.sql.db.mysql.MySQLConnection.onOk(MySQLConnection.kt:227) ~[jasync-mysql-2.0.8.jar:na]
		at com.github.jasync.sql.db.mysql.codec.MySQLConnectionHandler.channelRead0(MySQLConnectionHandler.kt:119) ~[jasync-mysql-2.0.8.jar:na]
		at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:327) ~[netty-codec-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:299) ~[netty-codec-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:722) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:658) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:584) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.78.Final.jar:4.1.78.Final]
		at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.78.Final.jar:4.1.78.Final]
		at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]
Caused by: com.github.jasync.sql.db.exceptions.ConnectionStillRunningQueryException: <<mysql-connection-4>> - There is a query still being run here - race -> false
	at com.github.jasync.sql.db.mysql.MySQLConnection.validateIsReadyForQuery(MySQLConnection.kt:437) ~[jasync-mysql-2.0.8.jar:na]
	at com.github.jasync.sql.db.mysql.MySQLConnection.sendQueryDirect(MySQLConnection.kt:342) ~[jasync-mysql-2.0.8.jar:na]
	at com.github.jasync.sql.db.ConcreteConnectionBase$sendQuery$1.invoke(ConcreteConnectionBase.kt:58) ~[jasync-common-2.0.8.jar:na]
	at com.github.jasync.sql.db.ConcreteConnectionBase$sendQuery$1.invoke(ConcreteConnectionBase.kt:57) ~[jasync-common-2.0.8.jar:na]
	at com.github.jasync.sql.db.interceptor.ConnectionInterceptorHelperKt.wrapQueryWithInterceptors(ConnectionInterceptorHelper.kt:13) ~[jasync-common-2.0.8.jar:na]
	at com.github.jasync.sql.db.ConcreteConnectionBase.sendQuery(ConcreteConnectionBase.kt:57) ~[jasync-common-2.0.8.jar:na]
	at com.github.jasync.r2dbc.mysql.JasyncStatement.execute$lambda-3(JasyncStatement.kt:89) ~[jasync-r2dbc-mysql-2.0.8.jar:na]
	at reactor.core.publisher.FluxFlatMap.trySubscribeScalarMap(FluxFlatMap.java:152) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMapMany.subscribeOrReturn(MonoFlatMapMany.java:49) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Flux.subscribe(Flux.java:8452) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxUsingWhen$ResourceSubscriber.onNext(FluxUsingWhen.java:195) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:122) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:151) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:122) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2398) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapSubscriber.request(FluxMap.java:164) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:110) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMap$MapSubscriber.onSubscribe(FluxMap.java:92) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoDeferContextual.subscribe(MonoDeferContextual.java:55) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Mono.subscribe(Mono.java:4397) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxUsingWhen.subscribe(FluxUsingWhen.java:104) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoUsingWhen.subscribe(MonoUsingWhen.java:87) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Mono.subscribe(Mono.java:4397) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:128) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoUsingWhen.subscribe(MonoUsingWhen.java:87) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:157) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.complete(MonoIgnoreThen.java:292) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onNext(MonoIgnoreThen.java:187) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:236) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:203) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onComplete(MonoPeekTerminal.java:299) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onComplete(MonoIgnoreElements.java:89) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onComplete(MonoIgnoreElements.java:89) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onComplete(Operators.java:2058) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1817) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.complete(MonoIgnoreThen.java:292) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onNext(MonoIgnoreThen.java:187) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:236) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:203) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onComplete(MonoPeekTerminal.java:299) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:209) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onComplete(MonoIgnoreElements.java:89) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1817) ~[reactor-core-3.4.19.jar:3.4.19]
	at reactor.core.publisher.MonoCompletionStage.lambda$subscribe$0(MonoCompletionStage.java:83) ~[reactor-core-3.4.19.jar:3.4.19]
	at java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:863) ~[na:na]
	at java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:841) ~[na:na]
	at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510) ~[na:na]
	at java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2147) ~[na:na]
	at com.github.jasync.sql.db.util.FutureUtilsKt.success(FutureUtils.kt:16) ~[jasync-pool-2.0.8.jar:na]
	at com.github.jasync.sql.db.mysql.MySQLConnection.succeedQueryPromise$lambda-12(MySQLConnection.kt:359) ~[jasync-mysql-2.0.8.jar:na]
	at java.base/java.util.Optional.ifPresent(Optional.java:178) ~[na:na]
	at com.github.jasync.sql.db.mysql.MySQLConnection.succeedQueryPromise(MySQLConnection.kt:358) ~[jasync-mysql-2.0.8.jar:na]
	at com.github.jasync.sql.db.mysql.MySQLConnection.onOk(MySQLConnection.kt:227) ~[jasync-mysql-2.0.8.jar:na]
	at com.github.jasync.sql.db.mysql.codec.MySQLConnectionHandler.channelRead0(MySQLConnectionHandler.kt:119) ~[jasync-mysql-2.0.8.jar:na]
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:327) ~[netty-codec-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:299) ~[netty-codec-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:722) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:658) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:584) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496) ~[netty-transport-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.78.Final.jar:4.1.78.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.78.Final.jar:4.1.78.Final]
	at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]

Uses

  • Spring R2DBC: 2.6.9
  • Driver: Jasync-r2dbc-mysql:2.0.8
  • DB: mysql:5.7 (Docker)
  • Java: 17
  • OS: macOS

I wonder if there is anything else that I didn’t consider here, or if there is an internal issue.

Issue Analytics

  • State:closed
  • Created a year ago
  • Comments:7 (3 by maintainers)

github_iconTop GitHub Comments

2reactions
oshaicommented, Sep 19, 2022

I suggest trying to upgrade to latest jasync 2.1.1 which should be in maven central soon.
Also you can try to trace the requests to see what is the long one and how much it takes.

0reactions
kworkbeecommented, Dec 13, 2022

@oshai Thanks to @FutureGadget, I found that query multiplexing in a same connection doesn’t recommended. Now I can close this issue directly.

Read more comments on GitHub >

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There is a query still being run here with spring @transactional