Error with importing table to DQOps

[truonglac2603]

Description:
Error with importing table to DQOps, happened with Trino and MySQL.

Deployment:
Docker
docker run -v [enter the path to your local userhome folder]:/dqo/userhome -d -it -m=4g -p 8888:8888 dqops/dqo run
Not having -it leads into instant collapsed docker container even though first deployment worked fine.

What happened:
First, i deployed DQOps without the -it flag. It worked like a charm, everything is fine until i restarted my device, and then restarted DQOps container, it ran for about 7 to 10 seconds and collapsed. If -it, it worked again.
But here comes the second issue i faced. When i created data sources (Trino and MySQL in this case), it connected as expected, the schemas and tables were showing, but when i import those table, it stuck loading and a new notification poped up:

java.lang.NullPointerException: Cannot invoke "reactor.core.publisher.Sinks$Many.emitNext(Object, reactor.core.publisher.Sinks$EmitFailureHandler)" because "this.loadTableStatusRequestSink" is null at com.dqops.data.checkresults.statuscache.TableStatusCacheImpl.loadEntryCore(TableStatusCacheImpl.java:99) Suppressed: The stacktrace has been enhanced by Reactor, refer to additional information below: Error has been observed at the following site(s): *__checkpoint ⇢ com.dqops.rest.server.authentication.AuthenticateWithDqoCloudWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ com.dqops.rest.server.ServeIndexHtmlWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.authorization.AuthorizationWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.authorization.ExceptionTranslationWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.authentication.logout.LogoutWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.savedrequest.ServerRequestCacheWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.context.SecurityContextServerWebExchangeWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.context.ReactorContextWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ com.dqops.rest.server.authentication.AuthenticateWithDqoCloudWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.header.HttpHeaderWriterWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.config.web.server.ServerHttpSecurity$ServerWebExchangeReactorContextWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.WebFilterChainProxy [DefaultWebFilterChain] *__checkpoint ⇢ HTTP GET "/api/connections/MySQL/schemas/test_dqops/tables" [ExceptionHandlingWebHandler] Original Stack Trace: at com.dqops.data.checkresults.statuscache.TableStatusCacheImpl.loadEntryCore(TableStatusCacheImpl.java:99) at com.github.benmanes.caffeine.cache.BoundedLocalCache.lambda$doComputeIfAbsent$14(BoundedLocalCache.java:2688) at java.base/java.util.concurrent.ConcurrentHashMap.compute(ConcurrentHashMap.java:1916) at com.github.benmanes.caffeine.cache.BoundedLocalCache.doComputeIfAbsent(BoundedLocalCache.java:2686) at com.github.benmanes.caffeine.cache.BoundedLocalCache.computeIfAbsent(BoundedLocalCache.java:2669) at com.github.benmanes.caffeine.cache.LocalCache.computeIfAbsent(LocalCache.java:112) at com.github.benmanes.caffeine.cache.LocalManualCache.get(LocalManualCache.java:62) at com.dqops.data.checkresults.statuscache.TableStatusCacheImpl.getCurrentTableStatus(TableStatusCacheImpl.java:125) at com.dqops.rest.controllers.TablesController.lambda$getTables$2(TablesController.java:239) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at com.dqops.rest.controllers.TablesController.getTables(TablesController.java:236) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.springframework.web.reactive.result.method.InvocableHandlerMethod.lambda$invoke$0(InvocableHandlerMethod.java:145) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:132) at reactor.core.publisher.MonoZip$ZipCoordinator.signal(MonoZip.java:293) at reactor.core.publisher.MonoZip$ZipInner.onNext(MonoZip.java:474) at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180) at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onNext(FluxDefaultIfEmpty.java:122) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) at reactor.core.publisher.MonoSupplier$MonoSupplierSubscription.request(MonoSupplier.java:145) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215) at reactor.core.publisher.MonoSupplier.subscribe(MonoSupplier.java:48) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82) at reactor.core.publisher.Operators.complete(Operators.java:137) at reactor.core.publisher.FluxFlatMap.trySubscribeScalarMap(FluxFlatMap.java:145) at reactor.core.publisher.MonoFlatMap.subscribeOrReturn(MonoFlatMap.java:53) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:57) at reactor.core.publisher.MonoZip$ZipCoordinator.request(MonoZip.java:216) at reactor.core.publisher.MonoFlatMap$FlatMapMain.request(MonoFlatMap.java:194) at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onSubscribe(MonoIgnoreThen.java:134) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:117) at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:125) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:240) at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:203) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onComplete(MonoFlatMap.java:189) at reactor.core.publisher.Operators.complete(Operators.java:137) at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:121) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:263) at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165) at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.innerNext(FluxConcatMapNoPrefetch.java:258) at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:863) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2545) at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.request(MonoPeekTerminal.java:139) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:171) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.request(Operators.java:2305) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.request(FluxConcatMapNoPrefetch.java:338) at reactor.core.publisher.MonoNext$NextSubscriber.request(MonoNext.java:108) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215) at reactor.core.publisher.MonoNext$NextSubscriber.onSubscribe(MonoNext.java:70) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onSubscribe(FluxConcatMapNoPrefetch.java:164) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.MonoIgnorePublisher.subscribe(MonoIgnorePublisher.java:57) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82) at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onComplete(MonoPeekTerminal.java:299) at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onComplete(MonoPeekTerminal.java:299) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:155) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) at reactor.core.publisher.FluxFilter$FilterSubscriber.onNext(FluxFilter.java:113) at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onNext(FluxDefaultIfEmpty.java:122) at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.innerNext(FluxConcatMapNoPrefetch.java:258) at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:863) at reactor.core.publisher.MonoFlatMap$FlatMapMain.secondComplete(MonoFlatMap.java:245) at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:305) at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onNext(FluxDefaultIfEmpty.java:122) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) at reactor.core.publisher.MonoAny$AnySubscriber.onNext(MonoAny.java:98) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.drainAsync(FluxFlattenIterable.java:453) at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.drain(FluxFlattenIterable.java:724) at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.onNext(FluxFlattenIterable.java:256) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onNext(FluxFilterFuseable.java:118) at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.onNext(FluxMapFuseable.java:299) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableConditionalSubscriber.onNext(FluxFilterFuseable.java:337) at reactor.core.publisher.MonoFlatMap$FlatMapMain.secondComplete(MonoFlatMap.java:245) at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:305) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2545) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:171) at reactor.core.publisher.MonoFlatMap$FlatMapInner.onSubscribe(MonoFlatMap.java:291) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96) at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165) at reactor.core.publisher.FluxFilter$FilterSubscriber.onNext(FluxFilter.java:113) at reactor.core.publisher.FluxMap$MapConditionalSubscriber.onNext(FluxMap.java:224) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2545) at reactor.core.publisher.FluxMap$MapConditionalSubscriber.request(FluxMap.java:295) at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:186) at reactor.core.publisher.MonoFlatMap$FlatMapMain.request(MonoFlatMap.java:194) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableConditionalSubscriber.request(FluxFilterFuseable.java:411) at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.request(FluxMapFuseable.java:360) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.request(FluxFilterFuseable.java:191) at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.onSubscribe(FluxFlattenIterable.java:241) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onSubscribe(FluxFilterFuseable.java:87) at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.onSubscribe(FluxMapFuseable.java:265) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableConditionalSubscriber.onSubscribe(FluxFilterFuseable.java:305) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:117) at reactor.core.publisher.FluxFilter$FilterSubscriber.onSubscribe(FluxFilter.java:85) at reactor.core.publisher.FluxMap$MapConditionalSubscriber.onSubscribe(FluxMap.java:194) at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55) at reactor.core.publisher.MonoDeferContextual.subscribe(MonoDeferContextual.java:55) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165) at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:122) at reactor.core.publisher.FluxFilter$FilterSubscriber.onNext(FluxFilter.java:113) at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.onNext(FluxPeekFuseable.java:854) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82) at reactor.core.publisher.FluxFilter$FilterSubscriber.onNext(FluxFilter.java:113) at reactor.core.publisher.FluxFlatMap$FlatMapMain.tryEmitScalar(FluxFlatMap.java:489) at reactor.core.publisher.FluxFlatMap$FlatMapMain.onNext(FluxFlatMap.java:422) at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onNext(FluxPeekFuseable.java:210) at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:335) at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:294) at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.request(FluxPeekFuseable.java:144) at reactor.core.publisher.FluxFlatMap$FlatMapMain.onSubscribe(FluxFlatMap.java:371) at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onSubscribe(FluxPeekFuseable.java:178) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:206) at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:335) at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:294) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.innerComplete(FluxConcatMapNoPrefetch.java:274) at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onComplete(FluxConcatMap.java:887) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onComplete(MonoFlatMap.java:189) at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144) at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166) at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.onComplete(FluxPeekFuseable.java:940) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:85) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2547) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215) at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82) at reactor.core.publisher.MonoNext$NextSubscriber.onComplete(MonoNext.java:102) at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166) at reactor.core.publisher.FluxFlatMap$FlatMapMain.checkTerminated(FluxFlatMap.java:847) at reactor.core.publisher.FluxFlatMap$FlatMapMain.drainLoop(FluxFlatMap.java:609) at reactor.core.publisher.FluxFlatMap$FlatMapMain.drain(FluxFlatMap.java:589) at reactor.core.publisher.FluxFlatMap$FlatMapMain.request(FluxFlatMap.java:347) at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:186) at reactor.core.publisher.MonoNext$NextSubscriber.request(MonoNext.java:108) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.request(Operators.java:2305) at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.request(FluxPeekFuseable.java:783) at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:186) at reactor.core.publisher.FluxMap$MapSubscriber.request(FluxMap.java:164) at reactor.core.publisher.MonoFlatMap$FlatMapMain.request(MonoFlatMap.java:194) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.request(Operators.java:2305) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.request(FluxConcatMapNoPrefetch.java:338) at reactor.core.publisher.MonoNext$NextSubscriber.request(MonoNext.java:108) at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.request(FluxDefaultIfEmpty.java:98) at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:186) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215) at reactor.core.publisher.FluxFilter$FilterSubscriber.onSubscribe(FluxFilter.java:85) at reactor.core.publisher.Operators$BaseFluxToMonoOperator.onSubscribe(Operators.java:2025) at reactor.core.publisher.MonoNext$NextSubscriber.onSubscribe(MonoNext.java:70) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onSubscribe(FluxConcatMapNoPrefetch.java:164) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:263) at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82) at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166) at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.onComplete(FluxPeekFuseable.java:940) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:85) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2547) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215) at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82) at reactor.core.publisher.MonoNext$NextSubscriber.onComplete(MonoNext.java:102) at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166) at reactor.core.publisher.FluxFlatMap$FlatMapMain.checkTerminated(FluxFlatMap.java:847) at reactor.core.publisher.FluxFlatMap$FlatMapMain.drainLoop(FluxFlatMap.java:609) at reactor.core.publisher.FluxFlatMap$FlatMapMain.drain(FluxFlatMap.java:589) at reactor.core.publisher.FluxFlatMap$FlatMapMain.onComplete(FluxFlatMap.java:466) at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onComplete(FluxPeekFuseable.java:277) at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:357) at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:294) at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.request(FluxPeekFuseable.java:144) at reactor.core.publisher.FluxFlatMap$FlatMapMain.onSubscribe(FluxFlatMap.java:371) at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onSubscribe(FluxPeekFuseable.java:178) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165) at reactor.core.publisher.Operators$BaseFluxToMonoOperator.completePossiblyEmpty(Operators.java:2071) at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onComplete(FluxDefaultIfEmpty.java:134) at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144) at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144) at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166) at reactor.core.publisher.FluxMap$MapConditionalSubscriber.onComplete(FluxMap.java:275) at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1840) at reactor.core.publisher.MonoCacheTime$CoordinatorSubscriber.signalCached(MonoCacheTime.java:337) at reactor.core.publisher.MonoCacheTime$CoordinatorSubscriber.onNext(MonoCacheTime.java:354) at reactor.core.publisher.FluxPeek$PeekSubscriber.onNext(FluxPeek.java:200) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) at reactor.core.publisher.MonoPublishOn$PublishOnSubscriber.run(MonoPublishOn.java:181) at reactor.core.scheduler.SchedulerTask.call(SchedulerTask.java:68) at reactor.core.scheduler.SchedulerTask.call(SchedulerTask.java:28) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840)

How to reproduce:
As described above, it all started after a docker restart and i deleted the folder used as dqhome in my device for a fresh start.

What to expect:
Everything works just fine again, including the Incident is not being created when there's checking issue (i wonder if it depends on the severity of the issue or not)

Any help would be much appreciated!
Thanks in advance.

[dqops]

The first problem that the container failed to start was caused by starting the container both with -d (background, daemon mode) and -it (interactive mode).
When the DQOps container was started once with the -d parameter, docker started it in the background, and you already have a running DQOps instance. Another instance cannot start, because the port 8888 is in use by the DQOps instance that is already running. You have to play a little with docker commands to stop background containers. That is not a bug in DQOps.

The second issue with the error is probably also caused by the same problem that two instances of DQOps are running and one instance was stopping.

You can also check out the most recent version of DQOps (1.4.0), which was released yesterday. The bug in the file TableStatusCacheImpl.java (line 99) is fixed there, and the code is protected from issues caused by too early access to the cache before it was fully initialized.

If you are still stuck on this issue, please use the Calendly link on our website (https://dqops.com/contact-us/) and find a timeslot on the calendar. We can review the issue, because I am also curious what was special on your environment that you faced these problems.

[truonglac2603]

Pulled the latest image and deploy once again, the error above is gone, but replaced with another one

java.lang.NullPointerException: Cannot invoke "java.util.concurrent.CompletableFuture.thenApply(java.util.function.Function)" because "this.queueEmptyFuture" is null at com.dqops.data.checkresults.statuscache.TableStatusCacheImpl.getQueueEmptyFuture(TableStatusCacheImpl.java:179) Suppressed: The stacktrace has been enhanced by Reactor, refer to additional information below: Error has been observed at the following site(s): *__checkpoint ⇢ com.dqops.rest.server.authentication.AuthenticateWithDqoCloudWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ com.dqops.rest.server.ServeIndexHtmlWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.authorization.AuthorizationWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.authorization.ExceptionTranslationWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.authentication.logout.LogoutWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.savedrequest.ServerRequestCacheWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.context.SecurityContextServerWebExchangeWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.context.ReactorContextWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ com.dqops.rest.server.authentication.AuthenticateWithDqoCloudWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.header.HttpHeaderWriterWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.config.web.server.ServerHttpSecurity$ServerWebExchangeReactorContextWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.security.web.server.WebFilterChainProxy [DefaultWebFilterChain] *__checkpoint ⇢ HTTP GET "/api/connections/trino-poc-datahub/schemas/datahub_schema/tables" [ExceptionHandlingWebHandler] Original Stack Trace: at com.dqops.data.checkresults.statuscache.TableStatusCacheImpl.getQueueEmptyFuture(TableStatusCacheImpl.java:179) at com.dqops.rest.controllers.TablesController.getTables(TablesController.java:246) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.springframework.web.reactive.result.method.InvocableHandlerMethod.lambda$invoke$0(InvocableHandlerMethod.java:145) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:132) at reactor.core.publisher.MonoZip$ZipCoordinator.signal(MonoZip.java:293) at reactor.core.publisher.MonoZip$ZipInner.onNext(MonoZip.java:474) at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180) at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onNext(FluxDefaultIfEmpty.java:122) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) at reactor.core.publisher.MonoSupplier$MonoSupplierSubscription.request(MonoSupplier.java:145) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215) at reactor.core.publisher.MonoSupplier.subscribe(MonoSupplier.java:48) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82) at reactor.core.publisher.Operators.complete(Operators.java:137) at reactor.core.publisher.FluxFlatMap.trySubscribeScalarMap(FluxFlatMap.java:145) at reactor.core.publisher.MonoFlatMap.subscribeOrReturn(MonoFlatMap.java:53) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:57) at reactor.core.publisher.MonoZip$ZipCoordinator.request(MonoZip.java:216) at reactor.core.publisher.MonoFlatMap$FlatMapMain.request(MonoFlatMap.java:194) at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onSubscribe(MonoIgnoreThen.java:134) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:117) at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:125) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:240) at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:203) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onComplete(MonoFlatMap.java:189) at reactor.core.publisher.Operators.complete(Operators.java:137) at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:121) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:263) at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165) at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.innerNext(FluxConcatMapNoPrefetch.java:258) at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:863) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2545) at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.request(MonoPeekTerminal.java:139) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:171) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.request(Operators.java:2305) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.request(FluxConcatMapNoPrefetch.java:338) at reactor.core.publisher.MonoNext$NextSubscriber.request(MonoNext.java:108) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215) at reactor.core.publisher.MonoNext$NextSubscriber.onSubscribe(MonoNext.java:70) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onSubscribe(FluxConcatMapNoPrefetch.java:164) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.MonoIgnorePublisher.subscribe(MonoIgnorePublisher.java:57) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82) at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onComplete(MonoPeekTerminal.java:299) at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onComplete(MonoPeekTerminal.java:299) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:155) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) at reactor.core.publisher.FluxFilter$FilterSubscriber.onNext(FluxFilter.java:113) at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onNext(FluxDefaultIfEmpty.java:122) at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.innerNext(FluxConcatMapNoPrefetch.java:258) at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:863) at reactor.core.publisher.MonoFlatMap$FlatMapMain.secondComplete(MonoFlatMap.java:245) at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:305) at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onNext(FluxDefaultIfEmpty.java:122) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) at reactor.core.publisher.MonoAny$AnySubscriber.onNext(MonoAny.java:98) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.drainAsync(FluxFlattenIterable.java:453) at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.drain(FluxFlattenIterable.java:724) at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.onNext(FluxFlattenIterable.java:256) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onNext(FluxFilterFuseable.java:118) at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.onNext(FluxMapFuseable.java:299) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableConditionalSubscriber.onNext(FluxFilterFuseable.java:337) at reactor.core.publisher.MonoFlatMap$FlatMapMain.secondComplete(MonoFlatMap.java:245) at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:305) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2545) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:171) at reactor.core.publisher.MonoFlatMap$FlatMapInner.onSubscribe(MonoFlatMap.java:291) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96) at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165) at reactor.core.publisher.FluxFilter$FilterSubscriber.onNext(FluxFilter.java:113) at reactor.core.publisher.FluxMap$MapConditionalSubscriber.onNext(FluxMap.java:224) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2545) at reactor.core.publisher.FluxMap$MapConditionalSubscriber.request(FluxMap.java:295) at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:186) at reactor.core.publisher.MonoFlatMap$FlatMapMain.request(MonoFlatMap.java:194) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableConditionalSubscriber.request(FluxFilterFuseable.java:411) at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.request(FluxMapFuseable.java:360) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.request(FluxFilterFuseable.java:191) at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.onSubscribe(FluxFlattenIterable.java:241) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onSubscribe(FluxFilterFuseable.java:87) at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.onSubscribe(FluxMapFuseable.java:265) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableConditionalSubscriber.onSubscribe(FluxFilterFuseable.java:305) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:117) at reactor.core.publisher.FluxFilter$FilterSubscriber.onSubscribe(FluxFilter.java:85) at reactor.core.publisher.FluxMap$MapConditionalSubscriber.onSubscribe(FluxMap.java:194) at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55) at reactor.core.publisher.MonoDeferContextual.subscribe(MonoDeferContextual.java:55) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165) at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:122) at reactor.core.publisher.FluxFilter$FilterSubscriber.onNext(FluxFilter.java:113) at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.onNext(FluxPeekFuseable.java:854) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82) at reactor.core.publisher.FluxFilter$FilterSubscriber.onNext(FluxFilter.java:113) at reactor.core.publisher.FluxFlatMap$FlatMapMain.tryEmitScalar(FluxFlatMap.java:489) at reactor.core.publisher.FluxFlatMap$FlatMapMain.onNext(FluxFlatMap.java:422) at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onNext(FluxPeekFuseable.java:210) at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:335) at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:294) at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.request(FluxPeekFuseable.java:144) at reactor.core.publisher.FluxFlatMap$FlatMapMain.onSubscribe(FluxFlatMap.java:371) at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onSubscribe(FluxPeekFuseable.java:178) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:206) at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:335) at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:294) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.innerComplete(FluxConcatMapNoPrefetch.java:274) at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onComplete(FluxConcatMap.java:887) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onComplete(MonoFlatMap.java:189) at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144) at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166) at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.onComplete(FluxPeekFuseable.java:940) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:85) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2547) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215) at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82) at reactor.core.publisher.MonoNext$NextSubscriber.onComplete(MonoNext.java:102) at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166) at reactor.core.publisher.FluxFlatMap$FlatMapMain.checkTerminated(FluxFlatMap.java:847) at reactor.core.publisher.FluxFlatMap$FlatMapMain.drainLoop(FluxFlatMap.java:609) at reactor.core.publisher.FluxFlatMap$FlatMapMain.drain(FluxFlatMap.java:589) at reactor.core.publisher.FluxFlatMap$FlatMapMain.request(FluxFlatMap.java:347) at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:186) at reactor.core.publisher.MonoNext$NextSubscriber.request(MonoNext.java:108) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.request(Operators.java:2305) at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.request(FluxPeekFuseable.java:783) at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:186) at reactor.core.publisher.FluxMap$MapSubscriber.request(FluxMap.java:164) at reactor.core.publisher.MonoFlatMap$FlatMapMain.request(MonoFlatMap.java:194) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.request(Operators.java:2305) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.request(FluxConcatMapNoPrefetch.java:338) at reactor.core.publisher.MonoNext$NextSubscriber.request(MonoNext.java:108) at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.request(FluxDefaultIfEmpty.java:98) at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:186) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215) at reactor.core.publisher.FluxFilter$FilterSubscriber.onSubscribe(FluxFilter.java:85) at reactor.core.publisher.Operators$BaseFluxToMonoOperator.onSubscribe(Operators.java:2025) at reactor.core.publisher.MonoNext$NextSubscriber.onSubscribe(MonoNext.java:70) at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onSubscribe(FluxConcatMapNoPrefetch.java:164) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:263) at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82) at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166) at reactor.core.publisher.FluxPeekFuseable$PeekConditionalSubscriber.onComplete(FluxPeekFuseable.java:940) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:85) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2547) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2341) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2215) at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55) at reactor.core.publisher.Mono.subscribe(Mono.java:4485) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:82) at reactor.core.publisher.MonoNext$NextSubscriber.onComplete(MonoNext.java:102) at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166) at reactor.core.publisher.FluxFlatMap$FlatMapMain.checkTerminated(FluxFlatMap.java:847) at reactor.core.publisher.FluxFlatMap$FlatMapMain.drainLoop(FluxFlatMap.java:609) at reactor.core.publisher.FluxFlatMap$FlatMapMain.drain(FluxFlatMap.java:589) at reactor.core.publisher.FluxFlatMap$FlatMapMain.onComplete(FluxFlatMap.java:466) at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onComplete(FluxPeekFuseable.java:277) at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:357) at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:294) at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.request(FluxPeekFuseable.java:144) at reactor.core.publisher.FluxFlatMap$FlatMapMain.onSubscribe(FluxFlatMap.java:371) at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onSubscribe(FluxPeekFuseable.java:178) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:201) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:83) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165) at reactor.core.publisher.Operators$BaseFluxToMonoOperator.completePossiblyEmpty(Operators.java:2071) at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onComplete(FluxDefaultIfEmpty.java:134) at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144) at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144) at reactor.core.publisher.FluxFilter$FilterSubscriber.onComplete(FluxFilter.java:166) at reactor.core.publisher.FluxMap$MapConditionalSubscriber.onComplete(FluxMap.java:275) at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1840) at reactor.core.publisher.MonoCacheTime$CoordinatorSubscriber.signalCached(MonoCacheTime.java:337) at reactor.core.publisher.MonoCacheTime$CoordinatorSubscriber.onNext(MonoCacheTime.java:354) at reactor.core.publisher.FluxPeek$PeekSubscriber.onNext(FluxPeek.java:200) at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) at reactor.core.publisher.MonoPublishOn$PublishOnSubscriber.run(MonoPublishOn.java:181) at reactor.core.scheduler.SchedulerTask.call(SchedulerTask.java:68) at reactor.core.scheduler.SchedulerTask.call(SchedulerTask.java:28) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840)

Im deploying with this docker-compose

version: '1.0'
services:
dqops:
container_name: dqops
image: dqops/dqo:latest
stdin_open: true
tty: true
deploy:
resources:
limits:
memory: 4g
volumes:
- .:/dqo/userhome
ports:
- "8888:8888"

Any idea? thanks in advance

[dqops]

It is a race condition during the initialization, probably the rest api is called when the backend is starting and has not yet initialized all caches. It is fixed in the develop branch.
We publish a development image to docker hub once a day, the image is named: dqops/dqo:develop