Hi Yann, Please don't get confuse with Cygwin(Windows). I am running apache on NonStop(Tandem). I have put breakpoint at apr_poll() but it is not going there.
Few Events of writing : 1) apache writes 779 bytes to tomcat from apr_socket_sendv() function and writev functions returns success. 2) apache writes 24604 bytes to tomcat from apr_socket_sendv() function but writev function returns -1 with EWOULDBLOCK and it has timeout=0(because set in writev_nonblocking()) 3) apache again tries to write 32796 to tomcat from apr_socket_sendv() function but writev function returns -1 with EWOULDBLOCK and it has timeout=0(because set in writev_nonblocking()). 4) apache again tries to write 40988 to tomcat from apr_socket_sendv() function but writev function returns -1 with EWOULDBLOCK and it has timeout=0(because set in writev_nonblocking()). 5) apache again tries to write 49180 to tomcat from apr_socket_sendv() function but writev function returns -1 with EWOULDBLOCK and it has timeout=0(because set in writev_nonblocking()). 6) After this I am getting 4022 error. What is happening here that after 24604 bytes in step 2, apache is 8192 bytes in buffer till step 5 and then giving 4022 error. All timeouts has default value. I am wondering that why is it not going into select() if writev is returning -1 with EWOULDBLOCK. Why is it failing after 49180 bytes. Does max size for this buffer is 49K?? I am able to upload same file if I am using blocking call. Please let me know if you need more information. Thanks Hemant On Fri, Sep 14, 2018 at 3:56 PM Yann Ylavic <ylavic....@gmail.com> wrote: > Hi Hermant, > > On Fri, Sep 14, 2018 at 8:08 AM Hemant Chaudhary > <hemantdude.chaudh...@gmail.com> wrote: > > > > I have tried to upload a file of 26.5mb on apache tomcat, which was > successfull. > > I tried to proxy request to tomcat with same file. But get following > error. > > Attaching the error_log. > > > > Can you please help me to understand where I am going wrong ? > > I don't run Windows, sorry I'm no expert there, more questions than > answers below... > So apr_poll() returns APR_EINVAL, right? > > What could be the reasons for poll() in cygwin to return EINVAL? > I don't know how cygwin implements poll(), but for instance I see that > WSAPoll() can return: > WSAEINVAL An invalid parameter was passed. This error is returned if > the fdarray parameter contains a NULL pointer. This error is also > returned if invalid flags were specified in the events member of any > of the WSAPOLLFD structures pointed to by the fdarray parameter when > requesting socket status. This error is also returned if none of the > sockets specified in the fd member of any of the WSAPOLLFD structures > pointed to by the fdarray parameter were valid. > > What's the value of "timeout" for apr_poll() in send_brigade_blocking()? > Could you debug apr_poll() and see if something like the above happens > to the parameters passed to poll()? > > Regards, > Yann. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org > For additional commands, e-mail: users-h...@httpd.apache.org > >
