Name
Abstract | ||
|---|---|---|
The lack of performance isolation in multi-tenant datacenters at appliances like middleboxes and storage servers results in volatile application performance. To insulate tenants, we propose giving them the abstraction of a dedicated virtual datacenter (VDC). VDCs encapsulate end-to-end throughput guarantees--specified in a new metric based on virtual request cost--that hold across distributed appliances and the intervening network. We present Pulsar, a system that offers tenants their own VDCs. Pulsar comprises a logically centralized controller that uses new mechanisms to estimate tenants' demands and appliance capacities, and allocates datacenter resources based on flexible policies. These allocations are enforced at end-host hypervisors through multi-resource token buckets that ensure tenants with changing workloads cannot affect others. Pulsar's design does not require changes to applications, guest OSes, or appliances. Through a prototype deployed across 113 VMs, three appliances, and a 40 Gbps network, we show that Pulsar enforces tenants' VDCs while imposing overheads of less than 2% at the data and control plane. |
Year | Venue | Field |
|---|---|---|
2014 | OSDI | Control theory,End-to-end principle,Temporal isolation among virtual machines,Computer science,Server,Hypervisor,Real-time computing,Throughput,Security token,Operating system,Overhead (business) |
DocType | Citations | PageRank |
Conference | 1 | 0.34 |
References | Authors | |
56 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Sebastian Angel | 1 | 31 | 8.25 |
| Hitesh Ballani | 2 | 1386 | 63.25 |
| Thomas Karagiannis | 3 | 3241 | 184.18 |
| Greg O'Shea | 4 | 765 | 48.08 |
| Eno Thereska | 5 | 1274 | 56.94 |