Thomas O'Dowd created CLOUDSTACK-4171:
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Summary: Xen/XCP snapshot uploading to S3 server should use
multipart upload API.
Key: CLOUDSTACK-4171
URL: https://issues.apache.org/jira/browse/CLOUDSTACK-4171
Project: CloudStack
Issue Type: Improvement
Security Level: Public (Anyone can view this level - this is the default.)
Affects Versions: 4.2.0
Reporter: Thomas O'Dowd
Currently when a snapshot is being uploaded to S3, it uses a single S3 PUT
request. Snapshots can be large and Amazon recommends using the multipart
upload API once the payload reaches 100MB [1] although it's possible to use the
single object PUT api up until 5GB.
>From the SMlog we can see the single PUT being used:
[16279] 2013-08-02 08:48:54.730958 #### VMOPS Sent PUT request to
s3.cloudian.com:18080/images/snapshots/5a28d935-47da-4813-a692-db92761ce7de
with headers {'Content-Length': '50430464', 'Content-MD5':
'oafg2xPUPPAnyE1sxmf+qA==', 'Expect': '100-continue', 'Date': 'Fri, 02 Aug 2013
08:48:52 +0000', 'Content-Type': 'application/octet-stream', 'Authorization':
'AWS 00ba9a7f9a8142b070c3:fy03ARq2UQWKW2UndUSYJ/E+QfI='}. Received response
status 200: OK ####
[1] http://docs.aws.amazon.com/AmazonS3/latest/dev/UploadingObjects.html
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