我在Spring Boot应用程序中使用spring-cloud-aws-autoconfigure和spring-cloud-aws-messaging从SQS队列中读取消息。
在应用程序线程转储中，几乎没有使用50个名为pool-3-thread-1 ... pool-3-thread-50的线程。在任何给定的时间，仅使用这些线程中的1个。使用线程时，它具有以下堆栈跟踪：
java.net.SocketInputStream.socketRead0(SocketInputStream.java:-2) native
java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
java.net.SocketInputStream.read(SocketInputStream.java:171)
java.net.SocketInputStream.read(SocketInputStream.java:141)
sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
sun.security.ssl.InputRecord.read(InputRecord.java:503)
sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:975)
sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:933)
sun.security.ssl.AppInputStream.read(AppInputStream.java:105)
org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:137)
org.apache.http.impl.io.SessionInputBufferImpl.fillBuffer(SessionInputBufferImpl.java:153)
org.apache.http.impl.io.SessionInputBufferImpl.readLine(SessionInputBufferImpl.java:282)
org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:138)
org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:56)
org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:259)
org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:163)
org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:165)
org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:273)
com.amazonaws.http.protocol.SdkHttpRequestExecutor.doReceiveResponse(SdkHttpRequestExecutor.java:82)
org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125)
org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:272)
org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185)
org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
com.amazonaws.http.apache.client.impl.SdkHttpClient.execute(SdkHttpClient.java:72)
com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeOneRequest(AmazonHttpClient.java:1297)
com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:1113)
com.amazonaws.http.AmazonHttpClient$RequestExecutor.doExecute(AmazonHttpClient.java:770)
com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeWithTimer(AmazonHttpClient.java:744)
com.amazonaws.http.AmazonHttpClient$RequestExecutor.execute(AmazonHttpClient.java:726)
com.amazonaws.http.AmazonHttpClient$RequestExecutor.access$500(AmazonHttpClient.java:686)
com.amazonaws.http.AmazonHttpClient$RequestExecutionBuilderImpl.execute(AmazonHttpClient.java:668)
com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:532)
com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:512)
com.amazonaws.services.sqs.AmazonSQSClient.doInvoke(AmazonSQSClient.java:2147)
com.amazonaws.services.sqs.AmazonSQSClient.invoke(AmazonSQSClient.java:2116)
com.amazonaws.services.sqs.AmazonSQSClient.invoke(AmazonSQSClient.java:2105)
com.amazonaws.services.sqs.AmazonSQSClient.executeReceiveMessage(AmazonSQSClient.java:1559)
com.amazonaws.services.sqs.AmazonSQSAsyncClient$14.call(AmazonSQSAsyncClient.java:1057)
com.amazonaws.services.sqs.AmazonSQSAsyncClient$14.call(AmazonSQSAsyncClient.java:1051)
java.util.concurrent.FutureTask.run(FutureTask.java:266)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
java.lang.Thread.run(Thread.java:748)
堆栈跟踪表明线程保留供从SQS读取。由于未使用线程，因此我想限制线程数以节省资源。
如何配置AmazonSQSClient正在使用的线程数？
我尝试按照建议的here创建自己的ThreadPoolTaskExecutor，但这改变了另一个池的设置，而不是pool-3。
编辑：我从一开始就在监视应用程序，它的工作原理是这样的。该应用程序从池3中的1个线程开始：pool-3-thread-1。该线程正在运行，并在20秒后停止运行，并创建了另一个正在运行的线程（pool-3-thread-2）。重复此过程，直到创建了50个线程，然后在重用了线程2 20秒后再次重用了线程1，依此类推...