TY - GEN
T1 - Overbooking lambda functions in the cloud
AU - Kesidis, George
PY - 2019/12/9
Y1 - 2019/12/9
N2 - We consider the problem of scheduling serverless-computing instances such as Amazon Lambda functions. Instead of a quota per tenant/customer, we assume demand for Lambda functions is modulated by token-bucket mechanisms per tenant. Such quotas are due to, e.g., limited resources (as in a fog/edge-cloud context) or to prevent excessive unauthorized invocation of numerous instances by malware. Based on an upper bound on the stationary number of active “Lambda servers" considering the execution-time distribution of Lambda functions, we describe an approach that the cloud could use to overbook Lambda functions for improved utilization of IT resources. An earlier bound for a single service tier is extended to multiple service tiers.
AB - We consider the problem of scheduling serverless-computing instances such as Amazon Lambda functions. Instead of a quota per tenant/customer, we assume demand for Lambda functions is modulated by token-bucket mechanisms per tenant. Such quotas are due to, e.g., limited resources (as in a fog/edge-cloud context) or to prevent excessive unauthorized invocation of numerous instances by malware. Based on an upper bound on the stationary number of active “Lambda servers" considering the execution-time distribution of Lambda functions, we describe an approach that the cloud could use to overbook Lambda functions for improved utilization of IT resources. An earlier bound for a single service tier is extended to multiple service tiers.
UR - http://www.scopus.com/inward/record.url?scp=85078944427&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85078944427&partnerID=8YFLogxK
U2 - 10.1145/3366615.3368351
DO - 10.1145/3366615.3368351
M3 - Conference contribution
T3 - WOC 2019 - Proceedings of the 2019 5th International Workshop on Container Technologies and Container Clouds, Part of Middleware 2019
SP - 1
EP - 6
BT - WOC 2019 - Proceedings of the 2019 5th International Workshop on Container Technologies and Container Clouds, Part of Middleware 2019
PB - Association for Computing Machinery, Inc
T2 - 5th International Workshop on Container Technologies and Container Clouds, WOC 2019 - Part of Middleware 2019
Y2 - 9 December 2019 through 13 December 2019
ER -