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fix: Retry "received rst stream" (#586)
* fix: Retry "received rst stream" * Check if exception is InternalException instead of using fromThrowable
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87 changes: 87 additions & 0 deletions
87
...ava/com/google/cloud/bigtable/data/v2/stub/readrows/ReadRowsConvertExceptionCallable.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| /* | ||
| * Copyright 2021 Google LLC | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * https://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package com.google.cloud.bigtable.data.v2.stub.readrows; | ||
|
|
||
| import com.google.api.core.InternalApi; | ||
| import com.google.api.gax.rpc.ApiCallContext; | ||
| import com.google.api.gax.rpc.ApiException; | ||
| import com.google.api.gax.rpc.InternalException; | ||
| import com.google.api.gax.rpc.ResponseObserver; | ||
| import com.google.api.gax.rpc.ServerStreamingCallable; | ||
| import com.google.api.gax.rpc.StreamController; | ||
|
|
||
| /** | ||
| * This callable converts the "Received rst stream" exception into a retryable {@link ApiException}. | ||
| */ | ||
| @InternalApi | ||
| public final class ReadRowsConvertExceptionCallable<ReadRowsRequest, RowT> | ||
| extends ServerStreamingCallable<ReadRowsRequest, RowT> { | ||
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|
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| private final ServerStreamingCallable<ReadRowsRequest, RowT> innerCallable; | ||
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| public ReadRowsConvertExceptionCallable( | ||
| ServerStreamingCallable<ReadRowsRequest, RowT> innerCallable) { | ||
| this.innerCallable = innerCallable; | ||
| } | ||
|
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| @Override | ||
| public void call( | ||
| ReadRowsRequest request, ResponseObserver<RowT> responseObserver, ApiCallContext context) { | ||
| ReadRowsConvertExceptionResponseObserver<RowT> observer = | ||
| new ReadRowsConvertExceptionResponseObserver<>(responseObserver); | ||
| innerCallable.call(request, observer, context); | ||
| } | ||
|
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| private class ReadRowsConvertExceptionResponseObserver<RowT> implements ResponseObserver<RowT> { | ||
|
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| private final ResponseObserver<RowT> outerObserver; | ||
|
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| ReadRowsConvertExceptionResponseObserver(ResponseObserver<RowT> outerObserver) { | ||
| this.outerObserver = outerObserver; | ||
| } | ||
|
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| @Override | ||
| public void onStart(StreamController controller) { | ||
| outerObserver.onStart(controller); | ||
| } | ||
|
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| @Override | ||
| public void onResponse(RowT response) { | ||
| outerObserver.onResponse(response); | ||
| } | ||
|
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| @Override | ||
| public void onError(Throwable t) { | ||
| outerObserver.onError(convertException(t)); | ||
| } | ||
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| @Override | ||
| public void onComplete() { | ||
| outerObserver.onComplete(); | ||
| } | ||
| } | ||
|
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| private Throwable convertException(Throwable t) { | ||
| // Long lived connections sometimes are disconnected via an RST frame. This error is | ||
| // transient and should be retried. | ||
| if (t instanceof InternalException) { | ||
| if (t.getMessage() != null && t.getMessage().contains("Received Rst stream")) { | ||
| return new InternalException(t, ((InternalException) t).getStatusCode(), true); | ||
| } | ||
| } | ||
| return t; | ||
| } | ||
| } |
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