For large file support, Cloud Files allows you to upload multiple file
segments and a manifest file to map the segments together.
Following are a few limitations:
- The Content Delivery Network (CDN) cannot serve files larger than 10 GB.
- You must first segment files larger than 5 GB into smaller files.
- We do not recommend that you use file segments smaller than 100-200 MB.
There are two options for uploading large files.
The Swift Tool segments a large file, creates a manifest
file, and uploads them accordingly. The Swift tool manages the file segments
by deleting and updating segments as necessary. The following code shows sample output:
$ st -A https://auth.api.rackspacecloud.com/v1.0 -U glh -K 3a25c2dc74f24c3122407a26566093c8 upload -S 1048576 test_container largefile.iso largefile.iso segment 1 largefile.iso segment 6 largefile.iso segment 9 largefile.iso segment 4 largefile.iso segment 5 largefile.iso segment 3 largefile.iso segment 7 largefile.iso segment 8 largefile.iso segment 2 largefile.iso segment 0 largefile.iso
Use the Cloud Files API to incorporate large file support
directly with your application. The following example shows
API cURL commands:
# First, upload the segments curl -X PUT -H 'X-Auth-Token: <token>' \ https://<storage_url>/container/myobject/1 --data-binary '1' curl -X PUT -H 'X-Auth-Token: <token>' \ https://<storage_url>/container/myobject/2 --data-binary '2' curl -X PUT -H 'X-Auth-Token: <token>' \ https://<storage_url>/container/myobject/3 --data-binary '3' # Next, create the manifest file curl -X PUT -H 'X-Auth-Token: <token>' \ -H 'X-Object-Manifest: container/myobject/' \ https://<storage_url>/container/myobject --data-binary '' # Then you can download the segments as a single object curl -H 'X-Auth-Token: <token>' \ https://<storage_url>/container/myobject
For more information, see the
Creating large objects
section in the Cloud Files Developer Guide.
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Updated 25 days ago