[Bug 1388880] Re: metadata update should not delete large file manifest

[James Page]

Looks like this problem persists in swift at ocata

(swift was deployed as part of an ocata cloud).

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https://bugs.launchpad.net/bugs/1388880

Title:
  metadata update should not delete large file manifest

Status in python-swiftclient:
  New
Status in swift package in Ubuntu:
  New

Bug description:
  If you upload a large file into swift using "swift -S" (or presumably
  the upload() method) then add extra metadata using "swift post -m" (or
  post_object()), the large file manifest metadata is deleted.  It
  shouldn't do that.

  $ swift upload -S 10000000 chrisstest /boot/initrd.img-3.16.0-22-generic
  boot/initrd.img-3.16.0-22-generic segment 3
  boot/initrd.img-3.16.0-22-generic segment 0
  boot/initrd.img-3.16.0-22-generic segment 1
  boot/initrd.img-3.16.0-22-generic segment 2
  /boot/initrd.img-3.16.0-22-generic

  $ swift stat chrisstest boot/initrd.img-3.16.0-22-generic
         Account: AUTH_06b6c15ea8c54b8f9832cbaf1ccccfb6
       Container: chrisstest
          Object: boot/initrd.img-3.16.0-22-generic
    Content Type: application/octet-stream
  Content Length: 30730085
   Last Modified: Mon, 03 Nov 2014 14:51:20 GMT
            ETag: "235bbbe8ab0520eec94a6bb8cc079db6"
        Manifest: chrisstest_segments/boot/initrd.img-3.16.0-22-generic/1413445437.000000/30730085/10000000/
      Meta Mtime: 1413445437.000000
   Accept-Ranges: bytes
     X-Timestamp: 1415026308.79456

  $ swift post -m "x-object-meta-test1:test1" chrisstest
  boot/initrd.img-3.16.0-22-generic

  $ swift stat chrisstest boot/initrd.img-3.16.0-22-generic
                   Account: AUTH_06b6c15ea8c54b8f9832cbaf1ccccfb6
                 Container: chrisstest
                    Object: boot/initrd.img-3.16.0-22-generic
              Content Type: application/octet-stream
            Content Length: 30730085
             Last Modified: Mon, 03 Nov 2014 14:53:52 GMT
                      ETag: 53d3910d4f2cea329b515f19cbb5ca89
  Meta X-Object-Meta-Test1: test1
             Accept-Ranges: bytes
               X-Timestamp: 1415026432.67306

  Interestingly, "swift download" (and the get_object() method) do re-
  create the segmented file correctly even without the manifest (does it
  just make an opportunistic look for chrisstest_segments?)

  
  System details:

  $ lsb_release -rd
  Description:	Ubuntu 14.10
  Release:	14.10

  $ apt-cache policy python-swiftclient
  python-swiftclient:
    Installed: 1:2.3.0-0ubuntu1
    Candidate: 1:2.3.0-0ubuntu1
    Version table:
   *** 1:2.3.0-0ubuntu1 0
          500 http://gb.archive.ubuntu.com/ubuntu/ utopic/main amd64 Packages
          100 /var/lib/dpkg/status

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