Re: Bug in lftp mirror when using xfer:use-temp-file option

Alexander Lukyanov <[email protected]> Mon, 27 Oct 2014 15:20:28 +0400
Newsgroups gmane.network.lftp.user,gmane.network.lftp.devel
Message-ID <CANnoEwpMdE+WGSdwwbdgV8ajT1hCV3vCNFZbf+4oEOm6dvz4sw@mail.gmail.com>
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I have found the bug. As a workaround, use "set xfer:clobber yes".

2014-10-27 13:06 GMT+03:00 akshay gupta <[email protected]>:

> no, I am running as a root user. There is some issue with lftp, when file
> with same name already exist its not able to rename the temp file to actual
> file.
>
> On Mon, Oct 27, 2014 at 1:44 PM, Alexander V. Lukyanov <[email protected]>
> wrote:
>
>> On Mon, Oct 27, 2014 at 01:30:42PM +0530, akshay gupta wrote:
>> > ---> RETR test.txt
>> > <--- 150 Opening BINARY mode data connection for 'test.txt' (202 bytes).
>> > ---- Got EOF on data connection
>> > ---- Closing data socket
>> > <--- 226 Transfer complete.
>>
>> So the file cannot be renamed locally, right? Is there a permissions
>> problem?
>>
>> --
>>    Alexander.
>>
>> > On Mon, Oct 27, 2014 at 1:18 PM, Alexander Lukyanov <[email protected]>
>> > wrote:
>> >
>> > > Can you provide a debug log? Why lftp cannot replace the old file?
>> > >
>> > > 2014-10-27 10:44 GMT+03:00 akshay gupta <[email protected]>:
>> > >
>> > >> Hi,
>> > >>
>> > >> I am trying to mirror files using lftp, I have tested a use case
>> where a
>> > >> file at the source machine gets modified but the file name remains
>> the
>> > >> same. After mirroring, lftp is unable to replace the old file and
>> also
>> > >> leaves a temporary file.
>> > >>
>> > >> For example. If source have file a.txt and its mirrored successfully
>> at
>> > >> the destination, now if I update a.txt append some content and save
>> it with
>> > >> same name. If I run lftp mirror again then its not able to replace
>> the
>> > >> existing a.txt but it also leaves the temp file a.txt_transit_
>> behind. And
>> > >> if i run the mirror multiple times it always downloads the changed
>> a.txt, i
>> > >> can see this from the lftp logs.
>> > >>
>> > >> Suggestion: Will it make sense to keep versions of the files as they
>> are
>> > >> updated at the source. Like if a.txt is changed at source then lftp
>> mirror
>> > >> will save it as a.txt_{TIMESTAMP}_. Every time a file is updated it
>> will be
>> > >> saved with a new time stamp. And mirror will consider these file to
>> decide
>> > >> whether to download or not.
>> > >>
>> > >>
>> > >> Thanks,
>> > >> Akshay
>> > >>
>> > >>
>> > >>
>> > >>
>> > >>
>> > >
>> > >
>> > > --
>> > >    Alexander.
>> > >
>>
>> > _______________________________________________
>> > lftp mailing list
>> > [email protected]
>> > http://univ.uniyar.ac.ru/mailman/listinfo/lftp
>>
>>
>


-- 
   Alexander.

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<div dir=3D"ltr">I have found the bug. As a workaround, use &quot;set xfer:=
clobber yes&quot;.<br></div><div class=3D"gmail_extra"><br><div class=3D"gm=
ail_quote">2014-10-27 13:06 GMT+03:00 akshay gupta <span dir=3D"ltr">&lt;<a=
 href=3D"mailto:[email protected]" target=3D"_blank">akshaygupta202@=
gmail.com</a>&gt;</span>:<br><blockquote class=3D"gmail_quote" style=3D"mar=
gin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr=
">no, I am running as a root user. There is some issue with lftp, when file=
 with same name already exist its not able to rename the temp file to actua=
l file.</div><div class=3D"HOEnZb"><div class=3D"h5"><div class=3D"gmail_ex=
tra"><br><div class=3D"gmail_quote">On Mon, Oct 27, 2014 at 1:44 PM, Alexan=
der V. Lukyanov <span dir=3D"ltr">&lt;<a href=3D"mailto:[email protected]" targe=
t=3D"_blank">[email protected]</a>&gt;</span> wrote:<br><blockquote class=3D"gma=
il_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-lef=
t:1ex"><span>On Mon, Oct 27, 2014 at 01:30:42PM +0530, akshay gupta wrote:<=
br>
&gt; ---&gt; RETR test.txt<br>
&gt; &lt;--- 150 Opening BINARY mode data connection for &#39;test.txt&#39;=
 (202 bytes).<br>
&gt; ---- Got EOF on data connection<br>
&gt; ---- Closing data socket<br>
&gt; &lt;--- 226 Transfer complete.<br>
<br>
</span>So the file cannot be renamed locally, right? Is there a permissions=
 problem?<br>
<br>
--<br>
=C2=A0 =C2=A0Alexander.<br>
<span><br>
&gt; On Mon, Oct 27, 2014 at 1:18 PM, Alexander Lukyanov &lt;<a href=3D"mai=
lto:[email protected]" target=3D"_blank">[email protected]</a>&gt;<br>
&gt; wrote:<br>
&gt;<br>
&gt; &gt; Can you provide a debug log? Why lftp cannot replace the old file=
?<br>
&gt; &gt;<br>
&gt; &gt; 2014-10-27 10:44 GMT+03:00 akshay gupta &lt;<a href=3D"mailto:aks=
[email protected]" target=3D"_blank">[email protected]</a>&gt;:<=
br>
&gt; &gt;<br>
&gt; &gt;&gt; Hi,<br>
&gt; &gt;&gt;<br>
&gt; &gt;&gt; I am trying to mirror files using lftp, I have tested a use c=
ase where a<br>
&gt; &gt;&gt; file at the source machine gets modified but the file name re=
mains the<br>
&gt; &gt;&gt; same. After mirroring, lftp is unable to replace the old file=
 and also<br>
&gt; &gt;&gt; leaves a temporary file.<br>
&gt; &gt;&gt;<br>
&gt; &gt;&gt; For example. If source have file a.txt and its mirrored succe=
ssfully at<br>
&gt; &gt;&gt; the destination, now if I update a.txt append some content an=
d save it with<br>
&gt; &gt;&gt; same name. If I run lftp mirror again then its not able to re=
place the<br>
&gt; &gt;&gt; existing a.txt but it also leaves the temp file a.txt_transit=
_ behind. And<br>
&gt; &gt;&gt; if i run the mirror multiple times it always downloads the ch=
anged a.txt, i<br>
&gt; &gt;&gt; can see this from the lftp logs.<br>
&gt; &gt;&gt;<br>
&gt; &gt;&gt; Suggestion: Will it make sense to keep versions of the files =
as they are<br>
&gt; &gt;&gt; updated at the source. Like if a.txt is changed at source the=
n lftp mirror<br>
&gt; &gt;&gt; will save it as a.txt_{TIMESTAMP}_. Every time a file is upda=
ted it will be<br>
&gt; &gt;&gt; saved with a new time stamp. And mirror will consider these f=
ile to decide<br>
&gt; &gt;&gt; whether to download or not.<br>
&gt; &gt;&gt;<br>
&gt; &gt;&gt;<br>
&gt; &gt;&gt; Thanks,<br>
&gt; &gt;&gt; Akshay<br>
&gt; &gt;&gt;<br>
&gt; &gt;&gt;<br>
&gt; &gt;&gt;<br>
&gt; &gt;&gt;<br>
&gt; &gt;&gt;<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt; --<br>
&gt; &gt;=C2=A0 =C2=A0 Alexander.<br>
&gt; &gt;<br>
<br>
</span>&gt; _______________________________________________<br>
&gt; lftp mailing list<br>
&gt; <a href=3D"mailto:[email protected]" target=3D"_blank">[email protected].=
ru</a><br>
&gt; <a href=3D"http://univ.uniyar.ac.ru/mailman/listinfo/lftp" target=3D"_=
blank">http://univ.uniyar.ac.ru/mailman/listinfo/lftp</a><br>
<br>
</blockquote></div><br></div>
</div></div></blockquote></div><br><br clear=3D"all"><br>-- <br><div dir=3D=
"ltr"><div></div>=C2=A0=C2=A0 Alexander.<br></div>
</div>

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