#jclouds

[jclouds-blog]

jclouds 1.5.3 out the door

Released on 2012-11-14, jclouds 1.5.3 includes minor fixes, and a few important updates:

new openstack-cinder and rackspace-cloudblockstorage-us/uk providers

add new Asia Pacific (Sydney) Region [ap-southeast-2]

new TagApi for ec2, in a revised syntax similar to openstack-nova

handle network failures in large container (1M+) deletes in blobstore

jclouds-cli and jclouds-karaf now provide a more intuitive file-based interface for reading and writing blobs.

Many thanks to the contributors in this release of jclouds, jclouds-chef, jclouds-karaf, and jclouds-cli. Also many thanks for the diligence of our review team: Andrew G and Matt for code, and Becca on docs.

Moreover, we're indebted to BuildHive for checking over 500 pull requests to date! On a build side, we currently validate both JDK6 and JDK7 on each pull, thanks to Andrew P.

Please update to jcloud 1.5.3 and check the new features. Particularly, try things out using JDK7. If you have questions, ping our user group or tag your question with "jclouds" on stackoverflow.

We are working on 1.6 now, which includes a lot of cleanup and mechanisms to make less api calls when starting groups of machines. If interested in helping us out, hop onto IRC freenode #jclouds or join our dev group.

[gjlondon]

org.jclouds.rest.AuthorizationException with Whirr and Ubuntu Precise 12.04

Just leaving a Google breadcrumb in case someone hits this error. If you're trying to launch a cluster using Whirr and Precise, and you get this error:

java.io.IOException: org.jclouds.rest.AuthorizationException: (ubuntu:rsa[fingerprint(8a:da:a2:0f:23:d0:3b:91:38:93:1f:5b:2b:dc:33:90),sha1(f5:eb:ab:91:a2:a7:be:f1:90:f6:2c:10:f0:89:1f:51:12:a9:32:e5)]@23.20.104.174:22) (ubuntu:rsa[fingerprint(8a:da:a2:0f:23:d0:3b:91:38:93:1f:5b:2b:dc:33:90),sha1(f5:eb:ab:91:a2:a7:be:f1:90:f6:2c:10:f0:89:1f:51:12:a9:32:e5)]@23.20.104.174:22) error acquiring SSHClient(timeout=60000): Exhausted available authentication methods

You can fix it by adding:

whirr.cluster-user=huser

to your hadoop.properties (or equivalent) file.

[techfindin]

Cloud Agnostic Libraries

libcloud[http://libcloud.org]

Apache Libcloud is a standard Python library that abstracts away differences among multiple cloud provider APIs.

fog[http://fog.io/]

Whether you need compute, dns, storage, or a multitude of other services, fog provides an accessible entry point and facilitates cross service compatibility.

Just getting started working with cloud resources? You are not alone, and having so many complicated options makes it hard to know where to start. fog delivers the knowledge of cloud experts to you, helping you to bootstrap your cloud usage and guiding you as your own expertise develops.

By coding with fog from the start you avoid vendor lock-in and give yourself more flexibility to provide value. Whether you are writing a library, designing a software as a service product or just hacking on the weekend this flexibility is a huge boon.

With a rapidly expanding community and codebase the advantages of fog just keep coming. Join us and together we will realize the future of cloud computing.

jclouds[http://www.jclouds.org/]

jclouds is an open source library that helps you get started in the cloud and reuse your java and clojure development skills. Our api allows you freedom to use portable abstractions or cloud-specific features. We test support of 30 cloud providers and cloud software stacks, including Amazon, GoGrid, Ninefold, vCloud, OpenStack, and Azure.