Sponsored Content
Full Discussion: Ftp hangs
Special Forums IP Networking Ftp hangs Post 302943994 by edstevens on Thursday 14th of May 2015 02:51:21 PM
Old 05-14-2015
Just an update to all ... two batch runs (shell script) using 'mget' were able to succesfully transfer a few dozen files before stalling out on the same file each time. After killing the ftp, the file in question is in the target directory, and at first glance looks good .. it's file size is comparable to all of the others - in the 3.5 to 4.5 GB range. But comparison to the file on the source server shows the transferred file is still a few GB short of complete. Most of these files transfer in about 5 minutes.

Today I tried to pull it manually. Started ftp at a command line and did a simple 'get' on the one file. After 20 minutes I killed it. I also did a simple get on another file from the same set and it completed in about 4 minutes, exactly as expected. So it would appear that there is something about the individual file, but I don't know what it would be. It is part of an Oracle database backupset - created by oracle's rman utility. I ran an rman 'verify' against it and it came up clean from that standpoint.

So, I can conclude ..
  1. since it always hits on that one file and only that one file, I can eliminate transient network issues.
  2. since it occurs on that file whether as part of a batch transfer or just the single file, I can eliminate any 'ftp flooding' that I've seen reference to here and there.

At this point I'm just going to let the normal weekend process run again on schedule, but if anyone has any good theories that fit all of the observations so far, I'd be willing to entertain them. If not, I'll have to figure the problem has been found to be off-topic for this forum.

Last edited by rbatte1; 05-15-2015 at 06:14 AM.. Reason: Set LIST=1 tags instead of plain text numbered list.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

ftp hangs on file size = 0

I have an ftp process which runs every 10 minutes between Unix and an NT box. Normally it works, but when the script tries to get a file from NT that has a length of 0, the ftp process hangs (as if it is still waiting for the end of the file). This is the script... (3 Replies)
Discussion started by: mheinrich
3 Replies

2. Filesystems, Disks and Memory

server Hangs during FTP transfer

We are backing up a oracle database by copying the datafiles from one server to another using FTP. while in the middle of the transfer the destination server closes the connection and it sort of hangs. After this we are not able to log onto the destination server using any other user apart from... (0 Replies)
Discussion started by: sgoundar
0 Replies

3. UNIX for Dummies Questions & Answers

rcp and ftp hangs

Hi there, We I attempt to rcp/ftp data from server A to server B. It copies until halfway and throw out the error: rcp: connection lost ftp netin: Connection reset by peer 421 Service not available, remote server has closed connection However, when rcp/ftp from server A to server C, it... (1 Reply)
Discussion started by: *Jess*
1 Replies

4. Shell Programming and Scripting

Script Hangs!

Hi, I have script which is based on TCL and expect. It is written to test my code. It usually runs fine for a while and hangs after sometime. Code snippet set l_temp_timeout $timeout OUTPUT_LOG2 2 >>>$expect_out(buffer)<<< OUTPUT_LOG2 2... (2 Replies)
Discussion started by: naveenpn
2 Replies

5. Solaris

Explorer hangs

Hi Guys, Anyone encontered a problem where when you run your SUN explorer, it hangs at sysconfig? I am having this problem for some of my servers. rgds, (1 Reply)
Discussion started by: ronny_nch
1 Replies

6. Solaris

System hangs

Hi, today when i started the OS Sun Solaris 10 it hangs on initialization. Following was shown in the end of the screen Initializing system Please wait.... * Please help? (3 Replies)
Discussion started by: malikshahid85
3 Replies

7. UNIX for Advanced & Expert Users

SSH hangs

Hi all, At a little bit of loss here. I have a Linux box (Redhat Enterprise 4) that has been working flawlessly for a while, that is until late Tuesday when none of the users could ssh into it. The machine is in a DMZ over which I have no control of the network settings. Here is the debug output... (6 Replies)
Discussion started by: ccj4467
6 Replies

8. HP-UX

bdf hangs

hi, bdf command hangs but before it, it lists all the fstab content, so i cannot find the reason... could anybody give me any clue?? thanks a lot for your attention. regards Pablo i attach syslog Jan 14 16:30:00 sv23 vmunix: hp_dlpi_wput:Received an unrecognized primitive: 101d... (7 Replies)
Discussion started by: pabloli150
7 Replies

9. Solaris

Server Hangs

I have a Sun-Fire-V210, the Server hangs for sometime and evn console wont be abled to access and after sometime the server comes back active. the messages file shows this , whats causing this ? # tail -500 messages Jan 25 07:02:16 xxxxxxxxxxxxx Corrupt label; wrong magic number Jan 25... (2 Replies)
Discussion started by: Sojourner
2 Replies

10. Shell Programming and Scripting

Ftp script hangs for first time,but works every second time

Hi I have an ftp script which works fine when i execute through a test scheduler(UC4), but when i run it through the prod scheduler(UC4), it hungs indefinetely, when we cancel the job and re-run it it works perfectly fine. here is the code,, any idea why this is happening ???? ... (1 Reply)
Discussion started by: selvankj
1 Replies
FTP-UPLOAD(1p)						User Contributed Perl Documentation					    FTP-UPLOAD(1p)

NAME
ftp-upload - batch transfer local files to an FTP server SYNOPSIS
ftp-upload [any-switch]... {[repeatable-switch]... file...}... DESCRIPTION
ftp-upload is used to send local files to an FTP server. It isn't interactive, it's meant to be used from scripts. It is disciplined about its exit value and it doesn't output informational messages by default. There are two kinds of switches. Initial switches have to appear before any filenames, they affect the session as a whole. Repeatable switches can appear interspersed with the file names, they affect the transfer of the files which appear after them on the command line. OPTIONS
Initial switches These have to be used before any file names listed on the command line. --debug Turn debugging on. --help Show the usage message and die. --ignore-quit-failure Don't complain or set a failure exit code just because the QUIT command fails. This can be necessary because some servers, in blatant disregard of RFC 959, close the command channel when you send them an ABOR command. -v, --verbose Print informational messages to stdout. --version Show the version number and exit. Initial switches which specify connection information These also have to be used before any file names listed on the command line. They specify the information used to set up the FTP connec- tion. --account account This specifies the account to be used when logging into the remote system. This is distinct from the user name used to log in. Few systems need this. There is no default. -h, --host host Specify the host to which to connect. There is no default, you have to specify this switch. --passive Force the use of passive (PASV) transfers. Passive transfers are required with some firewall configurations, but if you have such you'd do better to configure Net::FTP so that it knows when to use them (see Net::Config). If you need to use passive transfers with certain (broken) servers, however, this switch is your best bet. Alternatively, you can set $FTP_PASSIVE to 1 in the environment (see Net::FTP). --password pw This gives the password which will be used to login. The default is your email address. Note that you should not specify a real (secret) password this way, as on most systems anybody on the machine can see the arguments you pass to your commands. Use one of other password-setting switches instead. -s, --password-stdin This tells ftp-upload to read the password from standard input. No prompt will be printed, and a single line will be read. Most peo- ple will use this switch to specify the password. Eg, echo 3x9sjJJh | ftp-upload -sh $host -u $user $file Using echo this way is safe where the --password switch isn't if the echo command is built in to the shell. --password-fd fd This is like --password-stdin except that it reads the password from the file descriptor numbered fd. ftp-upload -h $host -u $user --password-fd=3 3<$pw_file $file -u, --user user Specify the user name to use when logging in. The default is "anonymous". Repeatable switches These switches can be used anywhere on the command line (except after the last file name). They affect the transfer of files listed after them. --as remote-name Normally a file is transferred using the same name it has locally. If you use this switch the next file transferred will be called remote-name on the other host instead. ftp-upload --host $host --as index.htm index.html -a, --ascii Perform transfers in ASCII mode. -b, --binary Perform transfers in binary mode. This is the default. -d, --dir dir Change directory to dir on the FTP server before continuing. You can use this multiple times between files, ftp-upload will chdir once for each time you specify it. Using ".." as the dir will cause an FTP "CDUP" to be done rather than a "CWD". --full-path Normally uploaded files go into the current directory on the remote host, even when the local file name given contains slashes. Eg, if you say ftp-upload -h $host /etc/motd ftp-upload will upload the file as motd, not /etc/motd. This differs from how the standard ftp program works, and it also differs with how ftp-upload worked before version 1.3. If you specify --full-path, you'll get the other behavior. A request to upload dir/file will tell the server to store dir/file rather than file. When you use --as the --full-path setting doesn't matter. --full-path only tells the program what name to use when it's choosing the name. --no-full-path Disable --full-path. This is the default. -l, --ls Try to get a remote directory listing of files after transferring them. I say "try" because there's no guaranteed way to do this with the FTP protocol. The command I run is "LIST file". This will generally work if file doesn't contain any special characters. -L, --no-ls Disable the --ls behavior. --tmp-none Transfer files directly, don't do anything special to try to ensure that they don't appear under their real names on the remote machine until the transfer is finished. Each file is transferred with a single simple "STOR". This is the default. --tmp-samedir Transfer files to the remote machine using a temporary name, then rename them when the transfer finishes. This won't work if the remote server doesn't give a recognizable response to the "STOU" command. If the server's response to "STOU" isn't recognized by Net::FTP but is reasonable, Graham Barr might be willing to change Net::FTP to recognize it. If you like you can send the "--debug" output to me and I'll coordinate such requests. --tmp-dir dir Transfer files to dir on the remote host, then rename them when the transfer is complete. This is safer than --tmp-samedir because it doesn't use "STOU" and so it works with more servers. ftp-upload -h $host --tmp-dir incoming $file --tmp-format fmt Transfer files to "sprintf(fmt, file base name)", then rename them when the transfer is complete. Like --tmp-dir, this is safer than --tmp-samedir because it doesn't use "STOU" and so it works with more servers. ftp-upload -h $host --tmp-format tmp.%s $file AUTHOR
Roderick Schertler <roderick@argon.org> perl v5.8.7 2006-03-16 FTP-UPLOAD(1p)
All times are GMT -4. The time now is 01:09 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy