Bug #3555

Download/Upload missed data with very big files

Added by Stavros Sachtouris over 9 years ago. Updated over 9 years ago.

Status:Closed Start date:04/05/2013
Priority:High Due date:
Assignee:Stavros Sachtouris % Done:

100%

Category:kamaki Spent time: -
Target version:v0.8

Description

Still not sure if it is a kamaki bug, but should be reported here. Kamaki seems to misshandle very large file downloads.

Test case:

with an image > 11GiB

download -A <owner-id> image:<image-id>

  download the file from the UI

  ls -l both files: are equal in total size

  md5sum both images:
    cd3d2e6d09ab829d82c49e3fc8a9b52b  kamaki-downloaded.diskdump
    88e7cc2615123623c8a4b7b246c7108b  ui-downloaded.diskdump

Why are they different?

History

#1 Updated by Stavros Sachtouris over 9 years ago

Note: The -A option is not avaiable in 0.7.X, use --account instead

#2 Updated by Stavros Sachtouris over 9 years ago

Nikos Skalkotos reports: the kamaki-downloaded md5 is wrong, the ui md5 is correct

#3 Updated by Stavros Sachtouris over 9 years ago

Turns out upload is not affected by this problem.

#4 Updated by Stavros Sachtouris over 9 years ago

  • Status changed from New to Resolved
  • Priority changed from Medium to High

Pinned down: When a file contains at least 2 blocks with the same hashtag (== exactly the same content), kamaki downloads only one of these equal blocks and ignores the rest.

#5 Updated by Stavros Sachtouris over 9 years ago

  • % Done changed from 0 to 100

#6 Updated by Stavros Sachtouris over 9 years ago

  • Status changed from Resolved to Closed

A functional test checks this problem so it is safe to say it is fixed

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