Hi Atsuhiko, thanks for the quick response. This issue does no happen on Unix Platforms. This happens intermittently when I copy files(around 250 MB) to Windows platforms eg. Window 2K12 PS: On the Windows hosts , sshd is configured using Cygwin.
Im fine with using the same example ScpTo ( http://www.jcraft.com/jsch/examples/ScpTo.java) ie with out.flush() commented. But will it cause any other Buffer issues while transferring huge files say of size 300-500 MB. thanks, Prakash On Sun, Apr 21, 2013 at 7:33 AM, Atsuhiko Yamanaka <y...@jcraft.com> wrote: > Hi, > > +-From: Prakash Babu <jprakashbab...@gmail.com> -- > |_Date: Sat, 20 Apr 2013 20:35:12 +0530 __________ > | > | while(true){ > | int len=fis.read(buf, 0, buf.length); > | if(len<=0) break; > | out.write(buf, 0, len); //out.flush(); > | } > | fis.close(); > > |I am facing intermittent hang while copying when I uncomment it > |out.flush in the while loop. > |So just want to know the reason why its commented ? > > It has indented to send data in the large packet as possible as. > So many small packets will eat CPU cycles for cyphering and calculating HMAC. > > As a preliminary test, I have been sending 10MB file 100 times with flush(), > but have not been able to reproduce that problem. > Would you show have to reproduce it? > > > Sincerely, > -- > Atsuhiko Yamanaka > JCraft,Inc. > 1-14-20 HONCHO AOBA-KU, > SENDAI, MIYAGI 980-0014 Japan. > Tel +81-22-723-2150 > Skype callto://jcraft/ > Twitter: http://twitter.com/ymnk > Facebook: http://facebook.com/aymnk ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ JSch-users mailing list JSch-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jsch-users
