Bug #44934 for Net-SFTP: put() method hangs while putting a file to a Tectia SFTP server

Fri Apr 10 18:08:21 2009 nathan.vonnahme [...] bannerhealth.com - Ticket created

Subject:

put() method hangs while putting a file to a Tectia SFTP server

I found a good description of my problem here: http://www.cpanforum.com/threads/2092 My script using Net::SFTP connects but hangs trying to upload the file. When I use the psftp script included in eg/, it hangs until I hit Enter a couple of times, and then it seems to work but it . Show quoted text

sftp> put data/file_to_upload xfer/incoming/test2

Uploading data/nco_20090410 to xfer/incoming/test2 myhost: sftp: Sent SSH2_FXP_OPEN I:10 P:xfer/incoming/test2 myhost: sftp: Sent message SSH2_FXP_WRITE I:11 O:0 myhost: sftp: In write loop, got 8192 offset 0 myhost: sftp: Sent message SSH2_FXP_WRITE I:12 O:8192 myhost: channel 1: rcvd eof myhost: channel 1: output open -> drain myhost: channel 1: obuf empty myhost: channel 1: output drain -> closed myhost: channel 1: close_write myhost: channel 1: rcvd close myhost: channel 1: input open -> closed myhost: channel 1: close_read myhost: channel 1: send close myhost: channel 1: full closed Connection closed at ./psftp line 137 This is the info for the server to which I'm trying to upload the file: myhost: Reading configuration data /etc/ssh_config myhost: Connecting to xxxx.xxxxxxxxx.com, port 22. myhost: Remote protocol version 2.0, remote software version 5.3.1.40 SSH Tectia Server myhost: Net::SSH::Perl Version 1.34, protocol version 2.0. myhost: No compat match: 5.3.1.40 SSH Tectia Server When I lower the COPY_SIZE constant in SFTP.pm (suggested in the cpanforum thread above), I get more debug lines from the write loop, but it aborts and I am disconnected: myhost: sftp: Sent message SSH2_FXP_WRITE I:509 O:129280 myhost: sftp: In write loop, got 256 offset 129280 myhost: sftp: Sent message SSH2_FXP_WRITE I:510 O:129536 myhost: sftp: In write loop, got 224 offset 129536 myhost: sftp: Sent message T:10 I:511 Couldn't fsetstat: Failure at ./psftp line 137 myhost: sftp: Sent message T:4 I:512 Show quoted text

sftp> ls -l

myhost: sftp: Sent message T:11 I:513 Couldn't get handle: No such file or directory at ./psftp line 144 By comparison, it works with two RedHat/OpenSSH servers I tried. Apparently a Tectia/Net::SFTP incompatibility? I don't understand what's going on but I am willing to answer additional questions if it will help. In the meantime... I'd prefer to use Net::SFTP, but I guess I will be scripting 'sftp' or something.

Fri Apr 10 18:39:58 2009 nathan.vonnahme [...] bannerhealth.com - Correspondence added 999 min

ARGGG! This is apparently a "known issue" in this version of Tectia Server (5.3.1): http://www.ssh.com/documents/33/SSH_Tectia_Server_5.3.1_releasenotes.txt "- All platforms: File transfers of files larger than 4kb using Net:SFTP and Net::SSH::Perl fail against SSH Tectia Server. "

Fri Apr 10 18:39:59 2009 nathan.vonnahme [...] bannerhealth.com - Status changed from 'new' to 'resolved'

Fri Apr 10 18:48:25 2009 nathan.vonnahme [...] bannerhealth.com - TimeWorked changed from '999' to '9999'

Fri Apr 10 19:18:23 2009 nathan.vonnahme [...] bannerhealth.com - Correspondence added

It's worse than I thought... apparently the problem has been a Known Issue since at least SSH Tectia Server 5.2.3 up through the current version, Googling for site:ssh.com "Net::SSH"

Fri Apr 10 19:18:24 2009 The RT System itself - Status changed from 'resolved' to 'open'

Fri Apr 10 19:53:47 2009 nathan.vonnahme [...] bannerhealth.com - Correspondence added

[Duh, pardon my user error with my browser]. The problem is still "Known" in the 6.0.9 release from 2 weeks ago. Must not be a priority for SSH.com. BTW, the "decreasing COPY_SIZE workaround" from the cpanforums thread does NOT work for me. On Fri Apr 10 19:18:23 2009, nathan.vonnahme@bannerhealth.com wrote: Show quoted text

> It's worse than I thought... apparently the problem has been a Known > Issue since at least SSH Tectia Server 5.2.3 up through the current > version, > > > Googling for > site:ssh.com "Net::SSH"