elonazoulay edited a comment on issue #7110:
URL:
https://github.com/apache/incubator-pinot/issues/7110#issuecomment-871638837
Enabled debug logging, here is the stack trace:
```
2021/06/30 18:22:29.247 DEBUG [SingleConnectionBrokerRequestHandler]
[jersey-server-managed-async-executor-1] Error reducing for request id 2:
java.lang.OutOfMemoryError: Requested array size exceeds VM limit
java.lang.OutOfMemoryError: Requested array size exceeds VM limit
at java.base/java.util.ArrayList.<init>(ArrayList.java:154)
at
org.apache.pinot.core.query.selection.SelectionOperatorUtils.reduceWithoutOrdering(SelectionOperatorUtils.java:391)
at
org.apache.pinot.core.query.reduce.SelectionDataTableReducer.reduceAndSetResults(SelectionDataTableReducer.java:112)
at
org.apache.pinot.core.query.reduce.BrokerReduceService.reduceOnDataTable(BrokerReduceService.java:228)
at
org.apache.pinot.broker.requesthandler.SingleConnectionBrokerRequestHandler.processBrokerRequest(SingleConnectionBrokerRequestHandler.java:124)
at
org.apache.pinot.broker.requesthandler.BaseBrokerRequestHandler.handleRequest(BaseBrokerRequestHandler.java:405)
at
org.apache.pinot.broker.api.resources.PinotClientRequest.processSqlQueryPost(PinotClientRequest.java:155)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52)
at
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$$Lambda$251/0x0000000840337c40.invoke(Unknown
Source)
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:124)
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:167)
at
org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$VoidOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:159)
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:79)
at
org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:469)
at
org.glassfish.jersey.server.model.ResourceMethodInvoker.lambda$apply$0(ResourceMethodInvoker.java:381)
at
org.glassfish.jersey.server.model.ResourceMethodInvoker$$Lambda$293/0x0000000840689840.call(Unknown
Source)
at
org.glassfish.jersey.server.ServerRuntime$AsyncResponder$2$1.run(ServerRuntime.java:819)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:244)
at org.glassfish.jersey.internal.Errors.process(Errors.java:292)
at org.glassfish.jersey.internal.Errors.process(Errors.java:274)
at org.glassfish.jersey.internal.Errors.process(Errors.java:244)
at
org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:265)
at
org.glassfish.jersey.server.ServerRuntime$AsyncResponder$2.run(ServerRuntime.java:814)
at
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
2021/06/
```
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