Hi all, My stuff: Windows Server 2008 R2 64 bit Apache 2.2.22 with mod_proxy_ajp Tomcat 7.0.25 (On same server as Apache)
I have an Apache acting as reverse proxy for a Tomcat over ajp. Apache conf for the proxyPass: <Location /tomcatSite> ProxyPass ajp://127.0.0.1:8009/tomcatSite ProxyPassReverse ajp://127.0.0.1:8009/tomcatSite </Location> and the tomcat-config is really basic with nothing added to the default config. The webapp listening on /tomcatSite is a servlet-2.5 app and it works nicely for all types of request except when it comes to multi-part. We have a java-client uploading .zip-files every night to this webapp and sometimes it works and sometimes it fails. When testing we trigger the file upload manually using the same zip file every time with the same result: sometimes it works, and sometimes it fails. What happens when it works: Client sends multipart http-request to Apache. Apache proxy to Tomcat over AJP Servlet is called on doPost Servlet uses apache-commons-fileupload 1.2 to parse the request Servlet does something with the file Servlet returns (200 OK) What happens when it doesn't work: Client sends http-requst Apache proxy request Servlet is called on doPost Servlet uses apache-commons-fileupload Commons-fileupload throws an Exception with message "Stream closed" (Gaahhh, the stack trace is swallowed, I only have the message string! The exception is thrown from FileUploadBase.parseRequest :-( ) Servlet sends an email to admin Servlet returns 200 OK The behaviour seem random but I would say that it fails 80% using the same file, same server, no restart. I attach two pcap-files with a ok-case and a fail-case. The difference I can see is that in the fail-case tomcat starts to send the response before the first Body chunk is sent by Apache. In the ok-case the first Body-chunk is sent by Apache the same millisecond as the first Request packet but in the failing case the first Body chunk is sent a couple of millis after the first packet somehow allowing Tomcat/my servlet to fail before the complete request is received. If we switch the proxyPass to use http everything works 100% of the time (which makes me think I have a misconfig AJP connector somewhere...). Any ideas/pointers are more than welcome! br Svante
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