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Thread: rsync -a does not update file

  1. #1
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    Default rsync -a does not update file

    I tried to update some file using rsync -a:
    Code:
    karl@hofkirchen:~> rsync -av /run/media/karl/WD25-BACKUP/backup/home/karl/Bilder/2008/2008-02-10/.jalbum/.info /home/karl/Bilder/2008/2008-02-10/.jalbum/.info
    sending incremental file list
    
    sent 56 bytes  received 12 bytes  136.00 bytes/sec
    total size is 760  speedup is 11.18
    karl@hofkirchen:~> diff -y /run/media/karl/WD25-BACKUP/backup/home/karl/Bilder/2008/2008-02-10/.jalbum/.info /home/karl/Bilder/2008/2008-02-10/.jalbum/.info
    <?xml version="1.0" encoding="UTF-8"?>                          <?xml version="1.0" encoding="UTF-8"?>
    <java version="1.7.0_51" class="java.beans.XMLDecoder">       | <java version="1.7.0_55" class="java.beans.XMLDecoder">
     <object class="java.util.HashMap">                              <object class="java.util.HashMap">
      <void method="put">                                             <void method="put">
       <string>lastFolderImageBlur</string>                            <string>lastFolderImageBlur</string>
       <boolean>false</boolean>                                        <boolean>false</boolean>
      </void>                                                         </void>
      <void method="put">                                             <void method="put">
       <string>title</string>                                          <string>title</string>
       <string>Thermen-Marathon</string>                               <string>Thermen-Marathon</string>
      </void>                                                         </void>
      <void method="put">                                             <void method="put">
       <string>lastFolderThumbSize</string>                            <string>lastFolderThumbSize</string>
       <string>300x300</string>                                        <string>300x300</string>
      </void>                                                         </void>
      <void method="put">                                             <void method="put">
       <string>hideLocation</string>                              <
       <boolean>false</boolean>                                   <
      </void>                                                     <
      <void method="put">                                         <
       <string>lastFolderImagePath</string>                            <string>lastFolderImagePath</string>
       <string>2008/2008-02-10/imgp0519.jpg</string>                   <string>2008/2008-02-10/imgp0519.jpg</string>
                                                                  >   </void>
                                                                  >   <void method="put">
                                                                  >    <string>hideLocation</string>
                                                                  >    <boolean>false</boolean>
      </void>                                                         </void>
      <void method="put">                                             <void method="put">
       <string>lastFolderImageSize</string>                            <string>lastFolderImageSize</string>
       <string>1200x240</string>                                       <string>1200x240</string>
      </void>                                                         </void>
     </object>                                                       </object>
    </java>                                                         </java>
    karl@hofkirchen:~> ls --full-time /run/media/karl/WD25-BACKUP/backup/home/karl/Bilder/2008/2008-02-10/.jalbum/.info /home/karl/Bilder/2008/2008-02-10/.jalbum/.info
    -rw-r--r-- 1 karl users 760 2014-12-13 12:46:53.000000000 +0100 /home/karl/Bilder/2008/2008-02-10/.jalbum/.info
    -rw-r--r-- 1 karl users 760 2014-12-13 12:46:53.721169118 +0100 /run/media/karl/WD25-BACKUP/backup/home/karl/Bilder/2008/2008-02-10/.jalbum/.info
    karl@hofkirchen:~>
    Obviously files are still different. Time stamps are different and older version was not replaced by the newer one. Any thought?

  2. #2
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    Default Re: rsync -a does not update file

    On 2014-12-20 15:36, karlmistelberger wrote:

    > Obviously files are still different. Time stamps are different and older
    > version was not replaced by the newer one. Any thought?


    Is that an external disk using FAT or NTFS? Granularity is 2 seconds, so
    the timestamps are effectively the same. You could force to use
    checksums instead.

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 13.1 x86_64 "Bottle" at Telcontar)

  3. #3
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    Default Re: rsync -a does not update file

    Quote Originally Posted by robin_listas View Post
    Is that an external disk using FAT or NTFS? Granularity is 2 seconds, so
    the timestamps are effectively the same. You could force to use
    checksums instead.
    File system is ext4, so timestamps should differ.
    Using rsync -ac would work, but is very slow.
    I tried rsync -ca --exclude '*' --include '.info' , but this did not work.

  4. #4
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    Default Re: rsync -a does not update file

    On 2014-12-20 18:26, karlmistelberger wrote:
    >
    > robin_listas;2684167 Wrote:
    >> Is that an external disk using FAT or NTFS? Granularity is 2 seconds, so
    >> the timestamps are effectively the same. You could force to use
    >> checksums instead.File system is ext4, so timestamps should differ.

    > Using _rsync_-ac_ would work, but is very slow.


    Yes, it is slow. You can not avoid it.

    Notice that the difference in your timestamp is less than a second.

    You did not answer my question: what filesystem are you using on your
    backup disk?

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 13.1 x86_64 "Bottle" at Telcontar)

  5. #5
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    Default Re: rsync -a does not update file

    Quote Originally Posted by robin_listas View Post
    Yes, it is slow. You can not avoid it.
    The .info files fooling rsync are only a very tiny percentage of total volume transferred. I will continue to use rsync -a followed by find -name *.info -exec cp -a.

    Notice that the difference in your timestamp is less than a second.
    You did not answer my question: what filesystem are you using on your
    backup disk?
    My answer given already above is:

    File system is ext4, so timestamps should differ.

    From reading the man page I conclude that rsync -a (no checksums!) should copy the file, but it doesn't.

  6. #6
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    Default Re: rsync -a does not update file

    On 2014-12-20 22:16, karlmistelberger wrote:
    >
    > robin_listas;2684237 Wrote:
    >> Yes, it is slow. You can not avoid it.


    > The .info files fooling rsync are only a very tiny percentage of total
    > volume transferred. I will continue to use _rsync_-a_ followed by find
    > -name *.info -exec cp -a.


    Then search the man page for "pattern":


    +++—-—-—-—-—-—-—-—-—-—-—-—-—-—-—-
    Code:
    rsync -t *.c foo:src/
    This would transfer all files matching the pattern *.c from the current
    directory to the directory src on the machine foo. If any of the files
    already exist on the remote system then the rsync remote-update protocol
    is used to update the file by sending only the differences. See the
    tech report for details.
    —-—-—-—-—-—-—-—-—-—-—-—-—-—-—-++-

    You could combine that with checksums, so that they are only calculated
    for a certain pattern.

    Or, instead, use "--ignore-times" for the pattern.


    >> Notice that the difference in your timestamp is less than a second.
    >> You did not answer my question: what filesystem are you using on your
    >> backup disk?My answer given already above is:

    >
    > File system is ext4, so timestamps should differ.


    Ok. Yes.

    Try "--modify-window=0". It should be the default, but maybe it is not.



    --
    Cheers / Saludos,

    Carlos E. R.
    (from 13.1 x86_64 "Bottle" at Telcontar)

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