Better, Faster, Cheaper Infrastructure: Apache CloudStack + Riak CS Redux

Software is eating infrastructure. Migrating reliability and
scalability responsibilities up the stack from specialized hardware to software, cloud orchestration platforms such as Apache CloudStack (ACS) and object stores such as Riak CS increase the utilization and density of compute and storage resources by dynamically shifting workloads based on demand. Together, these platform can saturate compute and storage of 1000s of commodity hosts with strong operational visibility and end-user self-service.

This talk explores cloud design strategies to achieve high
availability and reliability using commodity components. We then apply these strategies using Apache CloudStack and Riak CS.

Transcript

1. BETTER, FASTER, CHEAPER INFRASTRUCTURE: APACHE CLOUDSTACK + RIAK CS John Burwell (jburwell@basho.com | @john_burwell)
2. Who Am I • Senior Software Engineer @ Basho Technologies • Member, Apache CloudStack PMC • Ran operations and designed automated provisioning for hybrid analytic/virtualization cloud infrastructures • Led architectural design and server-side development of a SaaS physical security platform
3. ... but I submitted a ticket.
4. Better adjust to shifting requirements Deliver resources and recover from failure faster Utilize cheaper commodity components without compromising reliability
5. 1administrator per 10000 servers
6. Composable Infrastructure • Resource Pooling • Rapid Elasticity • Self Service Automated late binding of responsibilities to hardware
7. Doesn’t vSphere/ XCP/XenServer already do that?
8. Software Is Eating Hardware • Moore’s Law has pulled fault tolerance up the stack • Commodity Hardware • Reduced cost • Services wider range of workloads • Dynamic resource allocation Specialized Hardware Reduces Agility
9. Traditional Workload Management Network Hypervisor
10. Cloud Workload • Reliable • Fault Tolerant • Commodity Hardware • Self-Service provisioning • Control Plane -> Dynamic scale out model SDN Rack Rack Object
11. Traditional Workload Cloud Workload Reality
12. Got It ... Why Go Private? • Leverage existing infrastructure investment • Customization and Control • Regulatory/Security Requirements • Cost
13. Complete Private Cloud + Compute Services Object Storage Services
14. What Is Apache Cloudstack? §Open source software that deploys and manages large networks of virtual machines, as a highly available, highly scalable Infrastructure as a Service (IaaS) cloud computing platform. ! §CloudStack is a Top-Level Project at the Apache Software Foundation.
15. ~300: Acknowledged production implementations ~43,000: Hosts in a single CloudStack instance ~100: Project committers
16. Anatomy Of CloudStack • Management Server Farm • Management and provisioning tasks • Zone • Collection of pods, network offerings and secondary storage • Pod • Collection of clusters in the same failure boundary • Cluster • A grouping of hosts and their associated storage • Hosts • Servers onto which services will be provisioned • Primary Storage • VM disk storage • Network • Logical network associated with service offerings • Secondary Storage • Template, snapshot and ISO storage Zone CloudStack Pod Cluster ! Host ! Host Network Primary Storage VM VM CloudStack Pod Cluster Secondary Storage
17. Primary Vs Secondary Storage • Random access read/write • Changes often • Zone Scoped • Focused on throughput • Write once/read many • Append only • Zone or Region Scoped • Focused on reliability Secondary Storage is the compute lifeboat.
18. Secondary Storage Vm • Required for secondary storage operation • Separates data transfer operations from the control plane • Transfers data and manipulates secondary storage as directed by the management server • Dynamically scaled by the management server • An SSVM template is required and its installation is an additional step
19. What Is Object Storage? • Stores large, immutable, chunks of unstructured data referenced through a unique key • Objects live in a unique global namespace (e.g. bucket) • Simple interface that provides uniform access to distributed storage • Typically provide redundancy and replication in software allowing the use commodity JBOD storage
20. What Is Riak CS? • Simple, reliable storage of large objects accessed using the S3 or Swift API • Multi-tenant security model with per object ACLs • Usage Accounting and Reporting • Open Source (Apache2 Licensed) Your Own Private S3
21. Anatomy Of Riak CS • S3/Swift API Proxy + Riak key-value store • Peer-to-Peer Design: Any node can service any read or accept any write request • Maintains multiple replicas (default 3) spread across multiple nodes • Ops Friendly Horizontally scalable storage on commodity hardware
22. Riak CS Use Cases • Secondary Storage for VM snapshot and template data • Backup Storage • Serving Static Content • Application Log Storage
23. Using Riak Cs With CloudStack • Create a user account and bucket for CloudStack — the user’s ACLs should be restricted to the CloudStack bucket • In CloudStack, define an S3 secondary storage resource using the Riak CS cluster’s end point, the CloudStack account’s credentials, and the CloudStack bucket name • Create an NFS share to stage files sized to meet peak snapshot and VM creation load. This share is scratch space to support hypervisors that can not directly stream objects.
24. Achieving Commodity Reliability • Create a zone per power source/backbone network connection • Establish independent primary storage in each zone with block- level replication between zones • Utilize Riak CS for secondary storage — evenly distributing nodes across zones • Distribute application instances across all zones
25. A Complete Private Cloud Management Network Hypervisor
26. Up And Running With Riak CS • Learn more @ http://basho.com/riak-cloud-storage • Grab it @ http://docs.basho.com/riakcs/latest/riakcs- downloads/ • Follow us @basho • Help from the riak-users@lists.basho.com mailing list or on FreeNode @ #riak • Contribute @ http://github.com/basho/riak_cs
27. Join Our Community • Learn more @ http://cloudstack.apache.org • Grab it @ http://cloudstack.apache.org/downloads.html • Follow us @cloudstack • Help from the cloudstack-users@cloudstack.apache.org mailing list or on Freenode @ #cloudstack • Contribute on the cloudstack-dev@cloudstack.apache.org mailing list or on Freenode @ #cloudstack-dev
28. Thoughts? Questions?
29. Thank You Deck http://slideshare.net/JohnBurwell1 Follow @ john_burwell Email jburwell@basho.com