私はあまりにも多くの問題でaws Java APIでしばらく働いていました。現在私はライブラリ1.5.2バージョンを使用しています。S3のオブジェクトを反復するときに "ConnectionPoolTimeoutException"
私は、次のコードを使用してフォルダ内のオブジェクトを反復処理していた場合:
AmazonS3 s3 = new AmazonS3Client(new PropertiesCredentials(MyClass.class.getResourceAsStream("AwsCredentials.properties")));
String s3Key = "folder1/folder2";
String bucketName = Constantes.S3_BUCKET;
String key = s3Key +"/input_chopped/";
ObjectListing current = s3.listObjects(new ListObjectsRequest()
.withBucketName(bucketName)
.withPrefix(key));
boolean siguiente = true;
while (siguiente) {
siguiente &= current.isTruncated();
contador += current.getObjectSummaries().size();
for (S3ObjectSummary objectSummary : current.getObjectSummaries()) {
S3Object object = s3.getObject(new GetObjectRequest(bucketName, objectSummary.getKey()));
System.out.println(object.getKey());
}
current=s3.listNextBatchOfObjects(current);
}
要旨:リンク:https://gist.github.com/fgblanch/6038699 私は次の例外取得しています:
INFO (AmazonHttpClient.java:358) - Unable to execute HTTP request: Timeout waiting for connection from pool
org.apache.http.conn.ConnectionPoolTimeoutException: Timeout waiting for connection from pool
at org.apache.http.impl.conn.PoolingClientConnectionManager.leaseConnection(PoolingClientConnectionManager.java:232)
at org.apache.http.impl.conn.PoolingClientConnectionManager$1.getConnection(PoolingClientConnectionManager.java:199)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:456)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:784)
at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:315)
at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:199)
at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:2994)
at com.amazonaws.services.s3.AmazonS3Client.getObject(AmazonS3Client.java:918)
at com.madiva.segmentacion.tests.ListaS3.main(ListaS3.java:177)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caught an AmazonClientException, which means the client encountered a serious internal problem while trying to communicate with S3, such as not being able to access the network.
Error Message: Unable to execute HTTP request: Timeout waiting for connection from pool
任意のアイデア方法をこのエラーを回避します。オブジェクトの数が多いフォルダでのみ発生します。この場合、内部には463個のファイルがあります。ありがとう
https://forums.aws.amazon.com/message.jspa?messageID=471149 –
@KevinMeredith awsフォーラムでは私自身の質問でした。 P – Fgblanch
これは大きな助けとなりました:) – ZZzzZZzz