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Accepted
membersound
Asked: 2018-03-06 01:39:35 +0800 CST

Lftp default timeout and retry?

  • 772

Where can I find the defaults for lftp? Eg net:max-retries and net:timeout.

I'm asking because I get some **** Data socket error (Connection timed out) - reconnecting message in my lftp debug log. And it seems to retry forever if I don't quit the process manually. Which is bad for cron jobs.

Questions:

How could I explicit set the timeout and retries for one special script, which is as follows:

lftp -c "
open $HOST
user $USER $PASS
lcd $SOURCEFOLDER
mirror --delete --verbose $FSOURCE $FTARGET
exit
"

And how could I catch any sync errors in the batch file above, so that I could eg send an email notification on max timeouts?

ftp cron

3 Answers

  1. Best Answer

    Still I don't know how to find out the defaults. But could change them as follows:

    lftp -c "
set net:timeout 5;
set net:max-retries 3;
set net:reconnect-interval-multiplier 1;
set net:reconnect-interval-base 5;
open $HOST
user $USER $PASS
lcd $SOURCEFOLDER
mirror --delete --verbose $FSOURCE $FTARGET
exit
"
    • 4

  2. Where can I find the defaults for lftp?

    From inside lftp prompt:

    lftp :~> set -a

    This will list all the defaults for lftp on your system.

    lftp has context specific help. So you can type:

    lftp :~> help set

    Which returns:

    Usage: set [OPT] [<var> [<val>]]
Set variable to given value. If the value is omitted, unset the variable.
Variable name has format ``name/closure'', where closure can specify
exact application of the setting. See lftp(1) for details.
If set is called with no variable then only altered settings are listed.
It can be changed by options:
 -a  list all settings, including default values
 -d  list only default values, not necessary current ones
    • 2

  3. /etc/lftp.conf

    This is the default settings file for lftp on our systems.

    You can simply add lines to this as per the settings in membersound's answer above.

    • -1