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Operating Systems AIX Limitation for SFTP on AIX number of sessions Post 302597269 by zxmaus on Thursday 9th of February 2012 09:18:59 PM
Old 02-09-2012
are your 500 files coming from 1 source or 500 ?

You can sftp with wildcards like
Code:
sftp mybox:/dumps/*dump* me@yourbox:/some/destinationdirectory/

and the likelyhood that this job will finish without issues is a lot higher than trying to transfer each file in its very own sftp process. You will overwhelm the recieve buffer who has to put the tcp ip pieces recieved together at the destination and as a result it will just reject anything it cannot handle.
4 sftp streams with 125 files each will be a lot more effective than 500 streams with one file each.
Regards
zxmaus
 

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libssh2_sftp_close_handle(3)					  libssh2 manual				      libssh2_sftp_close_handle(3)

NAME
libssh2_sftp_close_handle - close filehandle SYNOPSIS
#include <libssh2.h> #include <libssh2_sftp.h> int libssh2_sftp_close_handle(LIBSSH2_SFTP_HANDLE *handle); int libssh2_sftp_close(LIBSSH2_SFTP_HANDLE *handle); int libssh2_sftp_closedir(LIBSSH2_SFTP_HANDLE *handle); DESCRIPTION
handle - SFTP File Handle as returned by libssh2_sftp_open_ex(3) or libssh2_sftp_opendir(3) (which is a macro). Close an active LIBSSH2_SFTP_HANDLE. Because files and directories share the same underlying storage mechanism these methods may be used interchangably. libssh2_sftp_close(3) and libssh2_sftp_closedir(3) are macros for libssh2_sftp_close_handle(3). RETURN VALUE
Return 0 on success or negative on failure. It returns LIBSSH2_ERROR_EAGAIN when it would otherwise block. While LIBSSH2_ERROR_EAGAIN is a negative number, it isn't really a failure per se. ERRORS
LIBSSH2_ERROR_ALLOC - An internal memory allocation call failed. LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket. LIBSSH2_ERROR_SOCKET_TIMEOUT - LIBSSH2_ERROR_SFTP_PROTOCOL - An invalid SFTP protocol response was received on the socket, or an SFTP operation caused an errorcode to be returned by the server. SEE ALSO
libssh2_sftp_open_ex(3) libssh2 0.15 1 Jun 2007 libssh2_sftp_close_handle(3)
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