java.io.IOException: Connection reset by peer

接口返回的时候报错，java.io.IOException: Connection reset by peer，具体报错信息如下：

org.apache.catalina.connector.ClientAbortException: java.io.IOException: Connection reset by peer
    at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:351)
    at org.apache.catalina.connector.OutputBuffer.flushByteBuffer(OutputBuffer.java:776)
    at org.apache.catalina.connector.OutputBuffer.append(OutputBuffer.java:681)
    at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:386)
    at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:364)
    at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:96)
    at com.fasterxml.jackson.core.json.UTF8JsonGenerator._flushBuffer(UTF8JsonGenerator.java:2137)
    at com.fasterxml.jackson.core.json.UTF8JsonGenerator.writeRaw(UTF8JsonGenerator.java:737)
    at com.fasterxml.jackson.core.json.UTF8JsonGenerator.writeRaw(UTF8JsonGenerator.java:650)

Suppressed: org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe
        at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:351)
        at org.apache.catalina.connector.OutputBuffer.flushByteBuffer(OutputBuffer.java:776)
        at org.apache.catalina.connector.OutputBuffer.append(OutputBuffer.java:681)
        at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:386)
        at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:364)
        at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:96)
        at com.fasterxml.jackson.core.json.UTF8JsonGenerator._flushBuffer(UTF8JsonGenerator.java:2137)
        at com.fasterxml.jackson.core.json.UTF8JsonGenerator.close(UTF8JsonGenerator.java:1180)
        at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessageConverter.java:346)
        ... 53 common frames omitted
    Caused by: java.io.IOException: Broken pipe
        at sun.nio.ch.FileDispatcherImpl.write0(Native Method)
        at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47)
        at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
        at sun.nio.ch.IOUtil.write(IOUtil.java:65)
        at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471)
        at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:138)
        at org.apache.tomcat.util.net.NioBlockingSelector.write(NioBlockingSelector.java:101)
        at org.apache.tomcat.util.net.NioSelectorPool.write(NioSelectorPool.java:152)

原因：接口返回的数据量太大报错，

解决办法：修改nginx缓存配置信息。

nginx原配置信息：

  proxy_buffer_size        16k;
  proxy_buffers            4 64k;
  proxy_busy_buffers_size 128k;
  proxy_temp_file_write_size 128k;

nginx修改后信息：

  proxy_buffer_size        256k;
  proxy_buffers            4 256k;
  proxy_busy_buffers_size 256k;
  proxy_temp_file_write_size 256k;

注意：

“proxy_busy_buffers_size”必须等于或大于”proxy_buffer_size”的最大值。