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Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1
From: |
Nicolas Aspert |
Subject: |
Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1 |
Date: |
Thu, 31 May 2007 13:36:49 +0200 |
User-agent: |
Thunderbird 2.0.0.0 (Windows/20070326) |
dAniel hAhler wrote:
> Yes, it looks like it from the exception you're getting:
> Catched exception duplicity.ftplib.error_temp: 421 No Transfer Timeout
>
> Do these exceptions still occur with the patch from Kenneth? But they
> get handled better?
The exceptions still occur but are handled better (and faster FWIW ;)
> AFAICS your problem (and another one I'm experiencing), was caused by
> the following change in my original ftpBackend patch:
> try:
> - if self.is_connected:
> + if not self.is_connected:
> self.connect()
> return ftplib.FTP.__dict__[command](self.ftp, *args)
>
> The intention had been to re-connect, if we're supposed to be
> connected (e.g. we do not want to re-connect when the CONNECT call
> failed itself).
> The only problem with this seemed to be that previous connections
> where not closed.
Something like this yes... I am still a bit puzzled about *why* do I
even see those timeouts. It means the ftp connection remains inactive
for too long. Is it that performing a daily incremental backup on a
farily large amount (~150GB) of data sends relatively few data, whereas
processing the whole folders takes much longer than data processing itself ?
If yes, it might be interesting to try to have a slightly better
strategy for ftp connection (maybe it doesn't need to stay established
for that long if it is useless...). Just my .02$ as I don't have time to
do this (+ my python is not so good ;)
a+
Nicolas
- [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1, Nicolas Aspert, 2007/05/30
- Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1, Kenneth Loafman, 2007/05/30
- Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1, Nicolas Aspert, 2007/05/30
- Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1, Kenneth Loafman, 2007/05/30
- Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1, Nicolas Aspert, 2007/05/30
- Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1, Kenneth Loafman, 2007/05/30
- Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1, Nicolas Aspert, 2007/05/31
- Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1, dAniel hAhler, 2007/05/31
- Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1,
Nicolas Aspert <=
- Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1, Kenneth Loafman, 2007/05/31
- Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1, Nicolas Aspert, 2007/05/31
- Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1, Charles Knowlton, 2007/05/31
- Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1, Kenneth Loafman, 2007/05/31
- Re: [Duplicity-talk] slowness+ ftp timeouts with 0.4.3-rc1, Charles Knowlton, 2007/05/31