FTP run from shell script gives slow transfer rates Post: 302304914

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Top Forums Shell Programming and Scripting FTP run from shell script gives slow transfer rates Post 302304914 by Countificus on Tuesday 7th of April 2009 02:42:42 PM

04-07-2009

Registered User

FTP run from shell script gives slow transfer rates

Hey everybody, this is my first post so be gentle. I have two Sun 5220's running Solaris 10 that are directly connected with a cross-over cable at Gig. One of these boxes is my production Oracle server which generates a 50GB dump file every evening at 10:50. The other Solaris is a devolopment server that is identical to the production. While they are attached to the network using IPMP and two of the NICs, I have 1 extra NIC dedicated to this private network between boxes. I am trying to script the FTP transfer between servers.

Here is the issue. When I run FTP interactively from Server A (prod) and do a put, I can transfer the file in 35 minutes or so. However when i run the same FTP commands in a shell script takes 5-7 hours to complete. I have thought maybe this is a priority issue and have looked at NICE, but I am kind of scared to mess with processor priority on my production database server.

Here is my script with then names changed to protect the innocent. I run this script from Server A (prod). It is pretty straight forward, so I really don't think their is a problem with the code. Something is causing it run 10 times slower when run from a script. Thanks in advance to anyone who can help me here.

#!/bin/sh
HOST="192.168.1.2"
USER="user"
PASSWD="passwd"

cd /u14/exp

ftp -in $HOST <<END_FTP
quote USER $USER
quote PASS $PASSWD
cd /u11/exp
put file.dmp
quit
END_FTP
EOF

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platform::shell

platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME

       platform::shell - System identification support code and utilities

SYNOPSIS

       package require platform::shell ?1.1.4?

       platform::shell::generic shell
       platform::shell::identify shell
       platform::shell::platform shell
_________________________________________________________________

DESCRIPTION

       The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.

       This  package  allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
       requirement is that the other shell (identified by its path), is actually executable on the current machine.

       While for most platform this means that the architecture of the interrogated shell is identical to the architecture of  the  running  shell
       this  is  not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
       32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.

       For applications like a code repository it is important to identify the architecture of the shell which will  actually  run  the  installed
       packages, versus the architecture of the shell running the repository software.

COMMANDS

       platform::shell::identify shell
	      This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::generic shell
	      This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::platform shell
	      This command returns the contents of tcl_platform(platform) for the specified Tcl shell.

KEYWORDS

       operating system, cpu architecture, platform, architecture

platform::shell 						       1.1.4							platform::shell(n)