did some more searching and according to some info I found RGW should support V4 signatures. http://tracker.ceph.com/issues/10333 http://tracker.ceph.com/issues/11858 The fact that everyone still modifies s3cmd to use Version 2 Signatures suggests to me that we have a bug in this code. If I use V4 signatures most of my requests work fine, but some requests fail on a signature error. Thanks, Jan Hugo Prins On 08/18/2016 12:46 PM, jan hugo prins wrote: > Hi everyone. > > To connect to my S3 gateways using s3cmd I had to set the option > signature_v2 in my s3cfg to true. > If I didn't do that I would get Signature mismatch errors and this seems > to be because Amazon uses Signature version 4 while the S3 gateway of > Ceph only supports Signature Version 2. > > Now I see the following error in a Jave project we are building that > should talk to S3. > > Aug 18, 2016 12:12:38 PM org.apache.catalina.core.StandardWrapperValve > invoke > SEVERE: Servlet.service() for servlet [Default] in context with path > [/VehicleData] threw exception > com.betterbe.vd.web.servlet.LsExceptionWrapper: xxxxxxxxxxxxxxxxxxxxxxx > caused: com.amazonaws.services.s3.model.AmazonS3Exception: null > (Service: Amazon S3; Status Code: 400; Error Code: > XAmzContentSHA256Mismatch; Request ID: > tx000000000000000002cc6-0057b58a15-25bba-default), S3 Extended Request > ID: 25bba-default-default > at > com.betterbe.vd.web.dataset.requesthandler.DatasetRequestHandler.handle(DatasetRequestHandler.java:262) > at com.betterbe.vd.web.servlet.Servlet.handler(Servlet.java:141) > at com.betterbe.vd.web.servlet.Servlet.doPost(Servlet.java:110) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:646) > > To me this looks a bit the same, though I'm not a Java developer. > Am I correct, and if so, can I tell the Java S3 client to use Version 2 > signatures? > > -- Met vriendelijke groet / Best regards, Jan Hugo Prins Infra and Isilon storage consultant Better.be B.V. Auke Vleerstraat 140 E | 7547 AN Enschede | KvK 08097527 T +31 (0) 53 48 00 694 | M +31 (0)6 26 358 951 jprins@xxxxxxxxxxxx | www.betterbe.com This e-mail is intended exclusively for the addressee(s), and may not be passed on to, or made available for use by any person other than the addressee(s). Better.be B.V. rules out any and every liability resulting from any electronic transmission. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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