com.google.cloud.spanner.AdminRequestsPerMinuteExceededException: RESOURCE_EXHAUSTED: com.google.api.gax.rpc.ResourceExhaustedException: io.grpc.StatusRuntimeException: RESOURCE_EXHAUSTED: Quota exceeded for quota metric 'Administrative requests' and limit 'Administrative requests per minute' of service 'spanner.googleapis.com' for consumer 'project_number:1016721519174'.
	at com.google.cloud.spanner.SpannerExceptionFactory.newSpannerExceptionPreformatted(SpannerExceptionFactory.java:244)
	at com.google.cloud.spanner.SpannerExceptionFactory.newSpannerException(SpannerExceptionFactory.java:59)
	at com.google.cloud.spanner.SpannerExceptionFactory.newSpannerException(SpannerExceptionFactory.java:179)
	at com.google.cloud.spanner.spi.v1.GapicSpannerRpc.get(GapicSpannerRpc.java:1591)
	at com.google.cloud.spanner.spi.v1.GapicSpannerRpc.access$600(GapicSpannerRpc.java:174)
	at com.google.cloud.spanner.spi.v1.GapicSpannerRpc$2.call(GapicSpannerRpc.java:848)
	at com.google.cloud.spanner.spi.v1.GapicSpannerRpc$2.call(GapicSpannerRpc.java:845)
	at com.google.api.gax.retrying.DirectRetryingExecutor.submit(DirectRetryingExecutor.java:105)
	at com.google.cloud.RetryHelper.run(RetryHelper.java:76)
	at com.google.cloud.RetryHelper.runWithRetries(RetryHelper.java:50)
	at com.google.cloud.spanner.spi.v1.GapicSpannerRpc.runWithRetryOnAdministrativeRequestsExceeded(GapicSpannerRpc.java:515)
	at com.google.cloud.spanner.spi.v1.GapicSpannerRpc.listDatabaseOperations(GapicSpannerRpc.java:844)
	at com.google.cloud.spanner.DatabaseAdminClientImpl$6.getNextPage(DatabaseAdminClientImpl.java:225)
	at com.google.cloud.spanner.SpannerImpl$PageFetcher.getNextPage(SpannerImpl.java:292)
	at com.google.cloud.PageImpl.getNextPage(PageImpl.java:116)
	at com.google.cloud.PageImpl$PageIterator.computeNext(PageImpl.java:66)
	at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:141)
	at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:136)
	at com.example.spanner.SpannerSample.listDatabaseOperations(SpannerSample.java:1707)
	at com.example.spanner.SpannerSample.run(SpannerSample.java:2051)
	at com.example.spanner.SpannerSample.main(SpannerSample.java:2172)
	at com.example.spanner.SpannerSampleIT.runSample(SpannerSampleIT.java:64)
	at com.example.spanner.SpannerSampleIT.testSample(SpannerSampleIT.java:364)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
	at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
	at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:364)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:272)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:237)
	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:158)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:428)
	at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:162)
	at org.apache.maven.surefire.booter.ForkedBooter.run(ForkedBooter.java:562)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:548)
Caused by: java.util.concurrent.ExecutionException: com.google.api.gax.rpc.ResourceExhaustedException: io.grpc.StatusRuntimeException: RESOURCE_EXHAUSTED: Quota exceeded for quota metric 'Administrative requests' and limit 'Administrative requests per minute' of service 'spanner.googleapis.com' for consumer 'project_number:1016721519174'.
	at com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:566)
	at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:547)
	at com.google.cloud.spanner.spi.v1.GapicSpannerRpc.get(GapicSpannerRpc.java:1585)
	... 49 more
Caused by: com.google.api.gax.rpc.ResourceExhaustedException: io.grpc.StatusRuntimeException: RESOURCE_EXHAUSTED: Quota exceeded for quota metric 'Administrative requests' and limit 'Administrative requests per minute' of service 'spanner.googleapis.com' for consumer 'project_number:1016721519174'.
	at com.google.api.gax.rpc.ApiExceptionFactory.createException(ApiExceptionFactory.java:57)
	at com.google.api.gax.grpc.GrpcApiExceptionFactory.create(GrpcApiExceptionFactory.java:72)
	at com.google.api.gax.grpc.GrpcApiExceptionFactory.create(GrpcApiExceptionFactory.java:60)
	at com.google.api.gax.grpc.GrpcExceptionCallable$ExceptionTransformingFuture.onFailure(GrpcExceptionCallable.java:97)
	at com.google.api.core.ApiFutures$1.onFailure(ApiFutures.java:68)
	at com.google.common.util.concurrent.Futures$CallbackListener.run(Futures.java:1041)
	at com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:30)
	at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:1215)
	at com.google.common.util.concurrent.AbstractFuture.complete(AbstractFuture.java:983)
	at com.google.common.util.concurrent.AbstractFuture.setException(AbstractFuture.java:771)
	at io.grpc.stub.ClientCalls$GrpcFuture.setException(ClientCalls.java:563)
	at io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:533)
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
	at com.google.cloud.spanner.spi.v1.SpannerErrorInterceptor$1$1.onClose(SpannerErrorInterceptor.java:100)
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:617)
	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:70)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:803)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:782)
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: io.grpc.StatusRuntimeException: RESOURCE_EXHAUSTED: Quota exceeded for quota metric 'Administrative requests' and limit 'Administrative requests per minute' of service 'spanner.googleapis.com' for consumer 'project_number:1016721519174'.
	at io.grpc.Status.asRuntimeException(Status.java:533)
	... 18 more