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

2015-05-15 Thread Alexander Lukyanov 
The problem should be fixed by
https://github.com/lavv17/lftp/commit/a2b4cdbf8ccdb98c8d5c79834ea6e29f83575da9
without unnecessary memory allocation.

2015-05-15 20:22 GMT+03:00 Alexander Lukyanov lavv...@gmail.com:

 Thanks for debugging! I'll fix it by using heap memory

 чт, 14 мая 2015, 14:59, Ankit Khurana ankit.khurana0...@gmail.com:

 Hi

 Found the issue, the lsToList is using string_alloca to allocate the ls
 result in stack memory which was limited.
 Tested by increasing the stack memory limit for a process. Fixing it by
 using heap memory using malloc instead of string_alloca.

 Thanks
 Ankit

 On Thu, May 14, 2015 at 2:48 PM, Ankit Khurana 
 ankit.khurana0...@gmail.com wrote:

 Hi

 The segmention fault is coming only in case of mirror. ls -la is working
 when run on lftp using fish.
 lftp test@192.168.10.15:/data2/data/history/231 mirror data/
 --- #CWD /data2/data/history/231/data
 cd /data2/data/history/231/data; echo '### 000'
 --- ### 000
 --- #LIST
 ls -la ; echo '### 200'
 --- ### 200
 Segmentation fault (core dumped)

 Thanks
 Ankit

 On Thu, May 14, 2015 at 11:57 AM, Ankit Khurana 
 ankit.khurana0...@gmail.com wrote:

 Th last log printed is from Fish.CC line 410. The process is giving
 segmentation on every run.

 Thanks
 Ankit

 On Thu, May 14, 2015 at 10:16 AM, Ankit Khurana 
 ankit.khurana0...@gmail.com wrote:

 Hi Alexander

 sending the core dump file for reference.

 Regards
 Ankit Khurana

 On Thu, May 14, 2015 at 9:32 AM, Ankit Khurana 
 ankit.khurana0...@gmail.com wrote:

 Hi Alexander

 I am trying to generate the non stripped executable using the default
 make install packaged in lftp tar. But i am always getting the stripped
 executable. Thus not able to debug the core dump produced.

 Regards
 Ankit Khurana

 On Thu, May 14, 2015 at 9:05 AM, Alexander Lukyanov 
 lavv...@gmail.com wrote:

 There should be no limitations. Please produce a stack trace and
 send it to me.

 ср, 13 мая 2015, 18:34, Ankit Khurana ankit.khurana0...@gmail.com:


 Hi,

 I am trying to mirror files using lftp, the mirror path contains
 around 1 million files.

 The problem i am facing is that when i start the mirror, it
 attempts to do `ls -la` on the mirror site and then the process dies 
 with
 segmentation fault producing a core dump.
 Is there a limitation on the number of files to be present at the
 mirror site?

 Thanks
 Ankit









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

2015-05-13 Thread Alexander Lukyanov 
There should be no limitations. Please produce a stack trace and send it to
me.

ср, 13 мая 2015, 18:34, Ankit Khurana ankit.khurana0...@gmail.com:


 Hi,

 I am trying to mirror files using lftp, the mirror path contains around 1
 million files.

 The problem i am facing is that when i start the mirror, it attempts to do
 `ls -la` on the mirror site and then the process dies with segmentation
 fault producing a core dump.
 Is there a limitation on the number of files to be present at the mirror
 site?

 Thanks
 Ankit


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Re: [lftp-devel] Handling for small files

2015-02-24 Thread Alexander Lukyanov 
Which protocol do you use?

вт, 24 февр. 2015, 13:48, akshay gupta akshaygupta...@gmail.com:

 Hi,

 I am trying to transfer about 80GB of data using mirror option. File sizes
 are very small about 0.5 KB to 3 KB per file. Transfer is taking a lot of
 time which I am attributing to small file size. Is there any option in lftp
 which I can use to increase the transfer speed. May be some sort of
 compression option like rsync -av*z.*

 I know about the parallel file transfer option but I cant use it because I
 want to maintain the order of file transfer.

 Please help.


 Thanks,

 Akshay





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Re: [lftp-devel] Possible Bug in lftp mirror using mirror:sort-by option

2014-12-08 Thread Alexander Lukyanov 
rpmbuild -tb lftp-VERSION.tar.gz should do the trick.

10:19, пн, 08.12.2014, akshay gupta akshaygupta...@gmail.com:

 Hi Alexander,

 Can you please also tell the steps needed to build an rpm for lftp.

 ~ Akshay

 On Sat, Dec 6, 2014 at 12:42 AM, akshay gupta akshaygupta...@gmail.com
 wrote:

 Have done some initial high level testing. It seems to work. Will test it
 thoroughly and will get back to you in case I find any bug.

 On Fri, Dec 5, 2014 at 10:20 PM, Alexander Lukyanov lavv...@gmail.com
 wrote:

 I think you need to install gettext-devel.

 I have also made a snapshot in case you don't want to build from git:
 http://lftp.yar.ru/ftp/devel/lftp-4.6.0.20141205.tar.gz

 2014-12-05 9:43 GMT+03:00 akshay gupta akshaygupta...@gmail.com:

 Its not working: I run the ./autogen.sh --without-gnutls --with-openssl
 command and it cannot seem to find Makefile.in in the configure step.
 Attached the complete logs



 On Thu, Dec 4, 2014 at 8:54 PM, Alexander Lukyanov lavv...@gmail.com
 wrote:

 autogen.sh script should generate everything. You'll have to get
 gnulib too.

 четверг, 4 декабря 2014 г. пользователь akshay gupta написал:

  I have cloned the lftp repo, can you please tell me the steps to
 create configure file and make script. I tried automake --force-missing
 --add-missing but its giving
 
  src/Makefile.am:45: NEED_TRIO does not appear in AM_CONDITIONAL
  src/Makefile.am: installing `build-aux/depcomp'
  Makefile.am:4: NEED_TRIO does not appear in AM_CONDITIONAL
  configure.ac:607: required file `lib/Makefile.in' not found
 
 
  ~ Akshay
 
  On Thu, Dec 4, 2014 at 4:56 PM, Alexander V. Lukyanov l...@netis.ru
 wrote:
 
  On Wed, Dec 03, 2014 at 02:11:28PM +0400, Alexander Lukyanov wrote:
   It's almost done, needs to be tested and also some issues with
 sorting to
   be fixed.
  
   2014-12-03 10:26 GMT+03:00 akshay gupta akshaygupta...@gmail.com
 :
  
Are these feature present in LFTP implementation timeline? By
 when will
they be implemented?
 
  You can now test the feature (git ee6391e adds --scan-all-first
 option).
 
 https://github.com/lavv17/lftp/commit/ee6391e3213e12013894aa98508a1a151f542da0
 
  --
 Alexander.
 
 

 --
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Re: [lftp-devel] Possible Bug in lftp mirror using mirror:sort-by option

2014-12-05 Thread Alexander Lukyanov 
I think you need to install gettext-devel.

I have also made a snapshot in case you don't want to build from git:
http://lftp.yar.ru/ftp/devel/lftp-4.6.0.20141205.tar.gz

2014-12-05 9:43 GMT+03:00 akshay gupta akshaygupta...@gmail.com:

 Its not working: I run the ./autogen.sh --without-gnutls --with-openssl
 command and it cannot seem to find Makefile.in in the configure step.
 Attached the complete logs



 On Thu, Dec 4, 2014 at 8:54 PM, Alexander Lukyanov lavv...@gmail.com
 wrote:

 autogen.sh script should generate everything. You'll have to get gnulib
 too.

 четверг, 4 декабря 2014 г. пользователь akshay gupta написал:

  I have cloned the lftp repo, can you please tell me the steps to create
 configure file and make script. I tried automake --force-missing
 --add-missing but its giving
 
  src/Makefile.am:45: NEED_TRIO does not appear in AM_CONDITIONAL
  src/Makefile.am: installing `build-aux/depcomp'
  Makefile.am:4: NEED_TRIO does not appear in AM_CONDITIONAL
  configure.ac:607: required file `lib/Makefile.in' not found
 
 
  ~ Akshay
 
  On Thu, Dec 4, 2014 at 4:56 PM, Alexander V. Lukyanov l...@netis.ru
 wrote:
 
  On Wed, Dec 03, 2014 at 02:11:28PM +0400, Alexander Lukyanov wrote:
   It's almost done, needs to be tested and also some issues with
 sorting to
   be fixed.
  
   2014-12-03 10:26 GMT+03:00 akshay gupta akshaygupta...@gmail.com:
  
Are these feature present in LFTP implementation timeline? By when
 will
they be implemented?
 
  You can now test the feature (git ee6391e adds --scan-all-first
 option).
 
 https://github.com/lavv17/lftp/commit/ee6391e3213e12013894aa98508a1a151f542da0
 
  --
 Alexander.
 
 

 --
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Re: [lftp-devel] Possible Bug in lftp mirror using mirror:sort-by option

2014-11-12 Thread Alexander Lukyanov 
I think it is possible and the amount of programming work is moderate. The
recursive model of mirror will stay but the file transfers will be deferred
and done on the top level when recursive directory traversal is finished.

2014-11-12 8:32 GMT+03:00 akshay gupta akshaygupta...@gmail.com:

 Hi Alexander,

 Are there any plans for redesigning LFTP Mirror algorithm to build the
 whole recursive list first. How much change would that require if we go
 that path?

 Thanks,
 Akshay

 On Thu, Oct 30, 2014 at 4:44 PM, akshay gupta akshaygupta...@gmail.com
 wrote:

 lftp have options like --depth-first and --no-recursion I think it will
 make sense to have an option like   --iterative for iterative file
 transfer. This option will fetch the full file list and then fetch them
 iteratively.

 On Wed, Oct 29, 2014 at 2:29 PM, akshay gupta akshaygupta...@gmail.com
 wrote:

 I think the functionality of mirror:sort-by option implies that the
 order is for all the files irrespective of the directory structure. Or may
 be it should support both the options and it would be configuration defined
 which one to use.

 On Wed, Oct 29, 2014 at 2:09 PM, Alexander Lukyanov lavv...@gmail.com
 wrote:

 Mirror in lftp works directory by directory. It does not build full
 list of files first, so it cannot sort the whole list. Maybe the mirror
 algorithm should be redesigned to build the whole recursive list first.
 What do you think?

 2014-10-29 10:07 GMT+03:00 akshay gupta akshaygupta...@gmail.com:

 Hi,

 I am trying to mirror files using mirror:sort-by option set to
 'date-desc'. My  file structure is like this

 $ ls -l -R
 total 3191264
 drwxr-xr-x  3 vikasgoyal  biadmin 102 Oct 22 12:35 1
 -rw-r--r--  1 vikasgoyal  biadmin   0 Aug  1 01:00 tmp.txt
 -rw-r--r--  1 vikasgoyal  biadmin   0 Aug  1 05:31 tmp1.txt
 -rw-r--r--  1 vikasgoyal  biadmin   263940738 Oct 28 13:51 abc.csv

 ./1:
 total 0
 drwxr-xr-x  4 vikasgoyal  biadmin  136 Oct 28 14:19 2

 ./1/2:
 total 515512
 -rw-r--r--  1 vikasgoyal  biadmin  0 Oct 28 14:19 3
 -rw-r--r--  1 vikasgoyal  biadmin  263940732 Oct 28 14:03 bc.csv


 I expect the file synch order should be

 ~/tmp.txt
 ~/tmp1.txt
 ~/abc.csv
 ~/1/2/bc.csv
 ~/1/2/3


 but the synch order is:
 ~/tmp.txt
 ~/tmp1.txt
 ~/1/2/bc.csv
 ~/1/2/3
 ~/abc.csv


 I think its the folder modification time that is causing this issue.
 Lftp considers folder synch time to decide the order even though files
 contained in the folder are newer then the remaining files in the parent
 folder. File synch order should be in order of the modification time
 irrespective of the folder structure. Please help.

 Thanks,
 Akshay








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Re: [lftp-devel] Possible Bug in lftp mirror using mirror:sort-by option

2014-10-29 Thread Alexander Lukyanov 
Mirror in lftp works directory by directory. It does not build full list of
files first, so it cannot sort the whole list. Maybe the mirror algorithm
should be redesigned to build the whole recursive list first. What do you
think?

2014-10-29 10:07 GMT+03:00 akshay gupta akshaygupta...@gmail.com:

 Hi,

 I am trying to mirror files using mirror:sort-by option set to
 'date-desc'. My  file structure is like this

 $ ls -l -R
 total 3191264
 drwxr-xr-x  3 vikasgoyal  biadmin 102 Oct 22 12:35 1
 -rw-r--r--  1 vikasgoyal  biadmin   0 Aug  1 01:00 tmp.txt
 -rw-r--r--  1 vikasgoyal  biadmin   0 Aug  1 05:31 tmp1.txt
 -rw-r--r--  1 vikasgoyal  biadmin   263940738 Oct 28 13:51 abc.csv

 ./1:
 total 0
 drwxr-xr-x  4 vikasgoyal  biadmin  136 Oct 28 14:19 2

 ./1/2:
 total 515512
 -rw-r--r--  1 vikasgoyal  biadmin  0 Oct 28 14:19 3
 -rw-r--r--  1 vikasgoyal  biadmin  263940732 Oct 28 14:03 bc.csv


 I expect the file synch order should be

 ~/tmp.txt
 ~/tmp1.txt
 ~/abc.csv
 ~/1/2/bc.csv
 ~/1/2/3


 but the synch order is:
 ~/tmp.txt
 ~/tmp1.txt
 ~/1/2/bc.csv
 ~/1/2/3
 ~/abc.csv


 I think its the folder modification time that is causing this issue. Lftp
 considers folder synch time to decide the order even though files contained
 in the folder are newer then the remaining files in the parent folder. File
 synch order should be in order of the modification time irrespective of the
 folder structure. Please help.

 Thanks,
 Akshay








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

2014-10-28 Thread Alexander Lukyanov 
It looks like a bug in the FS (fuse and/or hdfs) which also hits rsync:
https://groups.google.com/a/cloudera.org/forum/#!msg/cdh-user/R1GR2Asj_lc/f_uuIjG5R1UJ

Please try this workaround.

2014-10-28 10:29 GMT+03:00 akshay gupta akshaygupta...@gmail.com:

 will giving --delete-first option in lftp mirror help in my case? I think
 its not working in case of use-temp-file option. As per the man page its
 suppose to delete the old version of the file before it start downloading
 the new one. Its not doing anything. Please help.


 On Mon, Oct 27, 2014 at 11:50 PM, akshay gupta akshaygupta...@gmail.com
 wrote:

 I am using fuse mounted hadoop distributed file system(HDFS). Can you
 suggest what changes need to be done to make it work as this is a very
 critical requirement for my project. Will deleting file and then renaming
 temp file help? how to achieve that?

 On Mon, Oct 27, 2014 at 7:38 PM, Alexander V. Lukyanov l...@netis.ru
 wrote:

 On Mon, Oct 27, 2014 at 05:53:19PM +0530, akshay gupta wrote:
  now its producing 0 byte files and i am also getting input/output error
  here are the debug logs:
 
  copy: renaming `/mount/user/tom/test.txt_tmp_' to `test.txt'
  mirror: rename(/mount/user/tom/test.txt_tmp_,
 /mount/user/tom/test.txt):
  Input/output error

 Which filesystem do you use? Maybe it is necessary to unlink target file
 before renaming, although rename should do it automatically.

If  newpath already exists it will be atomically replaced
 (subject to a
few conditions; see ERRORS below), so that there is no point  at
 which
another process attempting to access newpath will find it missing.

 And man page for rename(2) does not list EIO error.

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

2014-10-27 Thread Alexander Lukyanov 
Can you provide a debug log? Why lftp cannot replace the old file?

2014-10-27 10:44 GMT+03:00 akshay gupta akshaygupta...@gmail.com:

 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







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

2014-10-27 Thread Alexander Lukyanov 
I have found the bug. As a workaround, use set xfer:clobber yes.

2014-10-27 13:06 GMT+03:00 akshay gupta akshaygupta...@gmail.com:

 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 l...@netis.ru
 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 lavv...@gmail.com
  wrote:
 
   Can you provide a debug log? Why lftp cannot replace the old file?
  
   2014-10-27 10:44 GMT+03:00 akshay gupta akshaygupta...@gmail.com:
  
   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
  
  
  
  
  
  
  
   --
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Re: [lftp-devel] possible bug in lftp mirror using xfer:use-temp-file option

2014-09-30 Thread Alexander Lukyanov 
In unix it is usually allowed to rename open files, so lftp does that. I'll
see if it is possible to reverse the order.

2014-09-30 12:18 GMT+04:00 akshay gupta akshaygupta...@gmail.com:

 Hi,

 I am trying to mirror files on Fuse mounted hdfs file system (
 https://wiki.apache.org/hadoop/MountableHDFS). Lftp is creating some 0
 byte files.

 Observations:
 1. Files of size larger then 64k are getting transferred properly. Smaller
 files have 0 byte file size.
 2. Debug logs shows that lftp downloaded data for the files correctly. It
 also renamed them.

 Additional tests on fuse mounted hdfs.
 - I created a file with a temp file name, written the data to it, then
 renamed the file and finally closed the output stream. In this case it
 creates a 0 byte file.
 - I created a file with a temp file name, written the data to it, closed
 the file and then renamed the file. In this case it creates the file
 correctly.


 Can someone please look into this issue, it might be possible that stream
 is closed after the file is renamed.

 Thanks,
 Akshay






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Re: [lftp-devel] [lftp] Status for incomplete files

2014-09-19 Thread Alexander Lukyanov 
Please try http://lftp.yar.ru/ftp/devel/lftp-4.5.5.20140919.tar.gz, it
introduces another setting xfer:temp-file-name. You can thus change the
temporary file name; an asterisk is replaced by the original file name. So
you would do set xfer:temp-file-name _tmp_* to achieve wanted behaviour.

2014-09-19 11:11 GMT+04:00 akshay gupta akshaygupta...@gmail.com:

 Hi Alexander,

 Thanks for the reply!

 I tried using this and it seems to works prefixing .in. to files
 getting transferred.

 What is the expected release date for this development version?

 Does it also have an additional setting to use custom flags for temporary
 files. Like if i want _tmp_ prefixed to temporary files.

 ~ Akshay

 On Fri, Sep 19, 2014 at 12:09 PM, Alexander V. Lukyanov l...@netis.ru
 wrote:

 On Fri, Sep 19, 2014 at 01:36:18AM +0530, akshay gupta wrote:
  I am looking for a way to know the file is still getting transferred
 and is
  incomplete. Some file downloaders  append some token such as _tmp or
  something else to the file name until its getting transferred when the
 file
  transfer completes its renamed to its original name. I know about pget
  option which creates a *lftp-pget-status* file but I prefer more direct
  option.

 Please try development snapshot
http://lftp.yar.ru/ftp/devel/lftp-4.5.5.20140918.tar.gz
 with xfer:use-temp-file set to yes.

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Re: [lftp-devel] [lftp] Status for incomplete files

2014-09-19 Thread Alexander Lukyanov 
It will be released in one or two weeks.

2014-09-19 15:38 GMT+04:00 akshay gupta akshaygupta...@gmail.com:

 Thanks a lot Alexander, when will these features come out in release
 version? I want to use these features in production, would be best if I
 could use a stable version.

 On Fri, Sep 19, 2014 at 4:58 PM, Alexander Lukyanov lavv...@gmail.com
 wrote:

 Please try http://lftp.yar.ru/ftp/devel/lftp-4.5.5.20140919.tar.gz, it
 introduces another setting xfer:temp-file-name. You can thus change the
 temporary file name; an asterisk is replaced by the original file name. So
 you would do set xfer:temp-file-name _tmp_* to achieve wanted behaviour.

 2014-09-19 11:11 GMT+04:00 akshay gupta akshaygupta...@gmail.com:

 Hi Alexander,

 Thanks for the reply!

 I tried using this and it seems to works prefixing .in. to files
 getting transferred.

 What is the expected release date for this development version?

 Does it also have an additional setting to use custom flags
 for temporary files. Like if i want _tmp_ prefixed to temporary files.

 ~ Akshay

 On Fri, Sep 19, 2014 at 12:09 PM, Alexander V. Lukyanov l...@netis.ru
 wrote:

 On Fri, Sep 19, 2014 at 01:36:18AM +0530, akshay gupta wrote:
  I am looking for a way to know the file is still getting transferred
 and is
  incomplete. Some file downloaders  append some token such as _tmp or
  something else to the file name until its getting transferred when
 the file
  transfer completes its renamed to its original name. I know about pget
  option which creates a *lftp-pget-status* file but I prefer more
 direct
  option.

 Please try development snapshot
http://lftp.yar.ru/ftp/devel/lftp-4.5.5.20140918.tar.gz
 with xfer:use-temp-file set to yes.

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Re: [lftp-devel] [lftp] FW: Regarding LFTP checksum issue

2014-06-09 Thread Alexander Lukyanov 
Do you have checksum issues if you use plain get command? Does pget work
as expected with other ftp servers?


2014-04-01 13:15 GMT+04:00 PRADHAN Priyabrata priyabrata.prad...@murex.com
:

  Fyia



 Thanks

 Priya



 *From:* PRADHAN Priyabrata
 *Sent:* Tuesday, April 01, 2014 6:14 PM
 *To:* 'l...@yars.free.net'
 *Subject:* Regarding LFTP checksum issue



 Hi Alexander V. Lukyanov,



 Thanks for this lftp tool.

 We are testing this tool.

 It’s a good tool having good features.

 But checksum is not intact after ftp.

 Any work around?

 We are using



 lftp -u user,passwd -e 'pget -n 20 -c file' remote server



 Thanks

 Priya



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