There are a log of "java.io.IOException: Broken pipe" error in MethodServer log in Windchill PDMLink

• There are a log of java.io.IOException: Broken pipe error as below in MethodServer log

2022-07-04 13:37:51,316 ERROR [ajp-nio-127.0.0.1-8010-exec-8] wt.servlet.ServletRequestMonitor.request  - 2022-07-04 13:37:51.285 +0800, wzb98owui;l52jcxdg;1708645;ioep7e;313534, -, 10.56.20.70, /Windchill/servlet/WindchillGW/wt.fv.master.StandardMasterService/doDirectDownload/LCR_319_Placement%28Original%29_31LCRM0000E.zip, folderId=424412975&ft=FF&userid=106&adId=457493896&fileName=000000004d8adf&refsize=1723097&mime=application/zip&mk=wt.fv.master.StandardMasterService&c=77&riid=-1&sT=1656913071&sign=u7O8sMbcPNntDxltKR989lPMtM6MaCTRZHuyTuP0aEI%3D&site=https%3A%2F%2F<server>%2FWindchill%2Fservlet%2FWindchillGW&AUTH_CODE=HmacSHA256&isProxy=true, GET, -1, 0.005462185, 0.030724127 wt.util.WTException: org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe
Nested exception is: org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe
	at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:371)
	at org.apache.catalina.connector.OutputBuffer.flushByteBuffer(OutputBuffer.java:845)
	at org.apache.catalina.connector.OutputBuffer.append(OutputBuffer.java:750)
	at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:406)
	at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:384)
	at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:96)
	at wt.servlet.ServletRequestMonitor$CountingOutputStream.write(ServletRequestMonitor.java:2405)
	at wt.fv.master.StandardMasterService.doDirectDownload(StandardMasterService.java:3382)
	at jdk.internal.reflect.GeneratedMethodAccessor1743.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at wt.httpgw.HTTPServletResponse.invoke(HTTPServletResponse.java:264)
	at wt.httpgw.MethodRequestHandler.handleRequest(MethodRequestHandler.java:92)
	at wt.httpgw.HTTPGatewayServlet.serviceWithoutFilters(HTTPGatewayServlet.java:336)

• There are no any error or exception in UI
• These error occur when some contents are downloaded from Windchill server to Windchill server (the client IP is of Windchill server)