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performance - 从tomcat中的输入流获取数据时出现SocketTimeoutException

问题描述

从输入流中读取数据时出现 sockettimeeout 异常

源代码

public void clientData(HttpServletRequest request, HttpServletResponse response){
            InputStream in = request.getInputStream();
            String body = null;
            body = IOUtils.toString(in);
}

 org.apache.catalina.connector.ClientAbortException: java.net.SocketTimeoutException|
    at org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java:348)|
    at org.apache.catalina.connector.InputBuffer.checkByteBufferEof(InputBuffer.java:663)|
    at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:370)|
    at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:183)|
    at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:284)|
    at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:326)|
    at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)|
    at java.io.InputStreamReader.read(InputStreamReader.java:184)|
    at java.io.Reader.read(Reader.java:140)|
    at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1680)|
    at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1659)|
    at org.apache.commons.io.IOUtils.copy(IOUtils.java:1636)|
    at org.apache.commons.io.IOUtils.copy(IOUtils.java:1583)|
    at org.apache.commons.io.IOUtils.copy(IOUtils.java:1608)|
    at org.apache.commons.io.IOUtils.toString(IOUtils.java:668)|
    at org.apache.commons.io.IOUtils.toString(IOUtils.java:646)|
 Caused by: java.net.SocketTimeoutException|
    at org.apache.tomcat.util.net.NioBlockingSelector.read(NioBlockingSelector.java:201)|
    at org.apache.tomcat.util.net.NioSelectorPool.read(NioSelectorPool.java:235)|
    at org.apache.tomcat.util.net.NioSelectorPool.read(NioSelectorPool.java:216)|
    at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1282)|
    at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1225)|
    at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:737)|
    at org.apache.coyote.http11.Http11InputBuffer.access$300(Http11InputBuffer.java:42)|
    at org.apache.coyote.http11.Http11InputBuffer$SocketInputBuffer.doRead(Http11InputBuffer.java:1120)|
    at org.apache.coyote.http11.filters.IdentityInputFilter.doRead(IdentityInputFilter.java:140)|
    at org.apache.coyote.http11.Http11InputBuffer.doRead(Http11InputBuffer.java:262)|
    at org.apache.coyote.Request.doRead(Request.java:581)|
    at org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java:344)|
    ... 59 more|

server.xml 具有以下配置

连接超时="20000" maxThread="150"

有数千个客户端同时访问tomcat服务器

注意：无法重现上述情况，有时会出现此异常

在 server.xml 中达到 20 秒 (connectionTimeout) 后发生异常

标签： performancetomcatservletsload-balancingtomcat8

解决方案

发现一个问题，问题是由于客户端和服务器之间的带宽造成的。当我们减少客户端和服务器之间的流量（请求数据大小减少）时

它工作没有问题

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