Min, Are you calculating the MD5 or letting the Amazon client do it?
Thanks, -John On Jun 6, 2013, at 4:54 PM, Min Chen <min.c...@citrix.com> wrote: > Thanks Tom. Indeed I have a S3 question that need some advise from some S3 > experts. To support upload object > 5G, I have used TransferManager.upload > to upload object to S3, upload went fine and object are successfully put > to S3. However, later on when I am using "s3cmd get <object key>" to > retrieve this object, I always got this exception: > > "MD5 signatures do not match: computed=Y, received="X" > > It seems that Amazon S3 kept a different Md5 sum for the multi-part > uploaded object. We have been using Riak CS for our S3 testing. If I > changed to not using multi-part upload and directly invoking S3 putObject, > I will not run into this issue. Do you have such experience before? > > -min > > On 6/6/13 1:56 AM, "Thomas O'Dowd" <tpod...@cloudian.com> wrote: > >> Thanks Min. I've printed out the material and am reading new threads. >> Can't comment much yet until I understand things a bit more. >> >> Meanwhile, feel free to hit me up with any S3 questions you have. I'm >> looking forward to playing with the object_store branch and testing it >> out. >> >> Tom. >> >> On Wed, 2013-06-05 at 16:14 +0000, Min Chen wrote: >>> Welcome Tom. You can check out this FS >>> >>> https://cwiki.apache.org/confluence/display/CLOUDSTACK/Storage+Backup+Obj >>> ec >>> t+Store+Plugin+Framework for secondary storage architectural work done >>> in >>> object_store branch.You may also check out the following recent threads >>> regarding 3 major technical questions raised by community as well as our >>> answers and clarification. >>> >>> http://mail-archives.apache.org/mod_mbox/cloudstack-dev/201306.mbox/%3C77 >>> B3 >>> 37AF224FD84CBF8401947098DD87036A76%40SJCPEX01CL01.citrite.net%3E >>> >>> http://mail-archives.apache.org/mod_mbox/cloudstack-dev/201306.mbox/%3CCD >>> D2 >>> 2955.3DDDC%25min.chen%40citrix.com%3E >>> >>> http://mail-archives.apache.org/mod_mbox/cloudstack-dev/201306.mbox/%3CCD >>> D2 >>> 300D.3DE0C%25min.chen%40citrix.com%3E >>> >>> >>> That branch is mainly worked on by Edison and me, and we are at PST >>> timezone. >>> >>> Thanks >>> -min >> -- >> Cloudian KK - http://www.cloudian.com/get-started.html >> Fancy 100TB of full featured S3 Storage? >> Checkout the Cloudian® Community Edition! >> >
