bigtable.hbase.async.TestAsyncSnapshots: testCloneSnapshot failed

Note: #3519 was also for this test, but it was closed more than 10 days ago. So, I didn't mark it flaky.

----

commit: 71e2db0b4443460838d7bd0b25ae18d669dc3230
buildURL: [Build Status](https://source.cloud.google.com/results/invocations/9d54fa98-ecb0-4683-892a-8d47f80d172c), [Sponge](http://sponge2/9d54fa98-ecb0-4683-892a-8d47f80d172c)
status: failed
Test output

com.google.cloud.bigtable.admin.v2.models.PartialListClustersException: Failed to list all clusters, some zones were unavailable: [europe-west9-c, europe-west9-b, europe-west9-a]

	at com.google.cloud.bigtable.admin.v2.BigtableInstanceAdminClient$9.apply(BigtableInstanceAdminClient.java:651)

	at com.google.cloud.bigtable.admin.v2.BigtableInstanceAdminClient$9.apply(BigtableInstanceAdminClient.java:630)

	at com.google.api.core.ApiFutures$ApiFunctionToGuavaFunction.apply(ApiFutures.java:397)

	at com.google.common.util.concurrent.AbstractTransformFuture$TransformFuture.doTransform(AbstractTransformFuture.java:250)

	at com.google.common.util.concurrent.AbstractTransformFuture$TransformFuture.doTransform(AbstractTransformFuture.java:240)

	at com.google.common.util.concurrent.AbstractTransformFuture.run(AbstractTransformFuture.java:122)

	at com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:31)

	at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:1270)

	at com.google.common.util.concurrent.AbstractFuture.complete(AbstractFuture.java:1038)

	at com.google.common.util.concurrent.AbstractFuture.set(AbstractFuture.java:783)

	at com.google.api.gax.retrying.BasicRetryingFuture.handleAttempt(BasicRetryingFuture.java:203)

	at com.google.api.gax.retrying.CallbackChainRetryingFuture$AttemptCompletionListener.handle(CallbackChainRetryingFuture.java:135)

	at com.google.api.gax.retrying.CallbackChainRetryingFuture$AttemptCompletionListener.run(CallbackChainRetryingFuture.java:115)

	at com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:31)

	at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:1270)

	at com.google.common.util.concurrent.AbstractFuture.complete(AbstractFuture.java:1038)

	at com.google.common.util.concurrent.AbstractFuture.set(AbstractFuture.java:783)

	at com.google.api.core.AbstractApiFuture$InternalSettableFuture.set(AbstractApiFuture.java:87)

	at com.google.api.core.AbstractApiFuture.set(AbstractApiFuture.java:70)

	at com.google.api.gax.grpc.GrpcExceptionCallable$ExceptionTransformingFuture.onSuccess(GrpcExceptionCallable.java:88)

	at com.google.api.core.ApiFutures$1.onSuccess(ApiFutures.java:89)

	at com.google.common.util.concurrent.Futures$CallbackListener.run(Futures.java:1138)

	at com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:31)

	at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:1270)

	at com.google.common.util.concurrent.AbstractFuture.complete(AbstractFuture.java:1038)

	at com.google.common.util.concurrent.AbstractFuture.set(AbstractFuture.java:783)

	at io.grpc.stub.ClientCalls$GrpcFuture.set(ClientCalls.java:569)

	at io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:542)

	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.api.gax.grpc.ChannelPool$ReleasingClientCall$1.onClose(ChannelPool.java:541)

	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:576)

	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:70)

	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:757)

	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:736)

	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)

	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:133)

	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:750)

	Suppressed: com.google.api.gax.rpc.AsyncTaskException: Asynchronous task failed

		at com.google.api.gax.rpc.ApiExceptions.callAndTranslateApiException(ApiExceptions.java:57)

		at com.google.cloud.bigtable.admin.v2.BigtableInstanceAdminClient.listClusters(BigtableInstanceAdminClient.java:591)

		at com.google.cloud.bigtable.hbase.wrappers.veneer.AdminClientVeneerApi.listClusters(AdminClientVeneerApi.java:107)

		at com.google.cloud.bigtable.hbase2_x.BigtableAsyncAdmin.getBackupClusterId(BigtableAsyncAdmin.java:517)

		at com.google.cloud.bigtable.hbase2_x.BigtableAsyncAdmin.snapshot(BigtableAsyncAdmin.java:458)

		at com.google.cloud.bigtable.hbase.async.TestAsyncSnapshots.snapshot(TestAsyncSnapshots.java:117)

		at com.google.cloud.bigtable.hbase.AbstractTestSnapshot.testCloneSnapshot(AbstractTestSnapshot.java:106)

		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.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.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.apache.maven.surefire.junitcore.pc.Scheduler$1.run(Scheduler.java:345)

		at org.apache.maven.surefire.junitcore.pc.InvokerStrategy.schedule(InvokerStrategy.java:47)

		at org.apache.maven.surefire.junitcore.pc.Scheduler.schedule(Scheduler.java:316)

		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.runners.ParentRunner$3.evaluate(ParentRunner.java:306)

		at org.junit.runners.ParentRunner.run(ParentRunner.java:413)

		at org.junit.runners.Suite.runChild(Suite.java:128)

		at org.junit.runners.Suite.runChild(Suite.java:27)

		at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)

		at org.apache.maven.surefire.junitcore.pc.Scheduler$1.run(Scheduler.java:345)

		at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

		at java.util.concurrent.FutureTask.run(FutureTask.java:266)

		... 3 more

Beginne mit dem fehlschlagenden Test in TestAsyncSnapshots.java:117 und dem gemeinsamen Testablauf in AbstractTestSnapshot.java:106. Verfolge die Snapshot-Aufrufe durch BigtableAsyncAdmin.java:458 und getBackupClusterId in Zeile 517, und führe anschließend TestAsyncSnapshots.testCloneSnapshot mit den aufgezeichneten Build-Details erneut aus. Erledigt ist die Aufgabe, wenn die Fehlerursache behoben ist und der Test nicht mehr fehlschlägt, weil Cluster in den aufgeführten Zonen nicht verfügbar sind.

Vom Indexierungsmodell aus dem Issue-Text verfasst.