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我想从 S3 java v1 迁移到 v2，现在由于某种原因，一个小集成测试开始失败。在调试和单步执行时，它正在工作。这是代码（我有一个 localstack https://github.com/localstack/localstack实例正在运行）：

@RunWith(SpringRunner::class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
class S3ConfigurationTest {

@Autowired
@Qualifier("historicalDataS3")
lateinit var s3: S3Client

@Test
fun `can write and read object on s3`() {
    var bucket = s3.listBuckets().buckets().first()

    val uid = UUID.randomUUID().toString()

    s3.putObject(
        PutObjectRequest.builder().bucket(bucket.name()).key(uid)
            .build(),
        RequestBody.fromString("test test test"))

    val read =
        String(s3.getObject(GetObjectRequest.builder().bucket(bucket.name()).key(uid).build()).readBytes())

    Assertions.assertThat(read).isEqualTo("test test test")
}

这是植根于 putObject 行的异常：

software.amazon.awssdk.core.exception.SdkClientException：无法执行 HTTP 请求：读取超时

at software.amazon.awssdk.core.exception.SdkClientException$BuilderImpl.build(SdkClientException.java:97)
at software.amazon.awssdk.core.internal.http.pipeline.stages.RetryableStage$RetryExecutor.handleThrownException(RetryableStage.java:136)
at software.amazon.awssdk.core.internal.http.pipeline.stages.RetryableStage$RetryExecutor.execute(RetryableStage.java:94)
at software.amazon.awssdk.core.internal.http.pipeline.stages.RetryableStage.execute(RetryableStage.java:62)
at software.amazon.awssdk.core.internal.http.pipeline.stages.RetryableStage.execute(RetryableStage.java:42)
at software.amazon.awssdk.core.internal.http.pipeline.RequestPipelineBuilder$ComposingRequestPipelineStage.execute(RequestPipelineBuilder.java:206)
at software.amazon.awssdk.core.internal.http.StreamManagingStage.execute(StreamManagingStage.java:51)
at software.amazon.awssdk.core.internal.http.StreamManagingStage.execute(StreamManagingStage.java:33)
at software.amazon.awssdk.core.internal.http.pipeline.stages.ApiCallTimeoutTrackingStage.executeWithTimer(ApiCallTimeoutTrackingStage.java:79)
at software.amazon.awssdk.core.internal.http.pipeline.stages.ApiCallTimeoutTrackingStage.execute(ApiCallTimeoutTrackingStage.java:60)
at software.amazon.awssdk.core.internal.http.pipeline.stages.ApiCallTimeoutTrackingStage.execute(ApiCallTimeoutTrackingStage.java:42)
at software.amazon.awssdk.core.internal.http.pipeline.RequestPipelineBuilder$ComposingRequestPipelineStage.execute(RequestPipelineBuilder.java:206)
at software.amazon.awssdk.core.internal.http.pipeline.RequestPipelineBuilder$ComposingRequestPipelineStage.execute(RequestPipelineBuilder.java:206)
at software.amazon.awssdk.core.internal.http.pipeline.stages.ExecutionFailureExceptionReportingStage.execute(ExecutionFailureExceptionReportingStage.java:37)
at software.amazon.awssdk.core.internal.http.pipeline.stages.ExecutionFailureExceptionReportingStage.execute(ExecutionFailureExceptionReportingStage.java:26)
at software.amazon.awssdk.core.internal.http.AmazonSyncHttpClient$RequestExecutionBuilderImpl.execute(AmazonSyncHttpClient.java:240)
at software.amazon.awssdk.core.client.handler.BaseSyncClientHandler.invoke(BaseSyncClientHandler.java:96)
at software.amazon.awssdk.core.client.handler.BaseSyncClientHandler.execute(BaseSyncClientHandler.java:120)
at software.amazon.awssdk.core.client.handler.BaseSyncClientHandler.execute(BaseSyncClientHandler.java:73)
at software.amazon.awssdk.core.client.handler.SdkSyncClientHandler.execute(SdkSyncClientHandler.java:44)
at software.amazon.awssdk.awscore.client.handler.AwsSyncClientHandler.execute(AwsSyncClientHandler.java:55)
at software.amazon.awssdk.services.s3.DefaultS3Client.putObject(DefaultS3Client.java:3053)

这里发生了什么？就示例而言，这应该可以工作https://github.com/awsdocs/aws-doc-sdk-examples/blob/master/javav2/example_code/s3/src/main/java/com/example/s3/ S3ObjectOperations.java

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1 回答 1

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根本原因是您的代码运行速度快于 AWS 在其内部组件之间的通信速度。

您需要减慢代码运行速度或让服务员循环并等待 s3Client.doesBucketExistV2(BucketName)返回 true。

于 2019-12-25T18:51:19.540 回答