Managing Tail Latency in Datacenter-Scale File Systems Under Production Constraints

Distributed file systems often exhibit high tail latencies, especially in large-scale datacenters and in the presence of competing (and possibly higher priority) workloads. This paper introduces techniques for managing tail latencies in these systems, while addressing the practical challenges inherent in production datacenters (e.g., hardware heterogeneity, interference from other workloads, the need to maximize simplicity and maintainability). We implement our techniques in a scalable distributed file system (an extension of HDFS) used in production at Microsoft. Our evaluation uses 70k servers in 3 datacenters, and shows that our techniques reduce tail latency significantly for production workloads.


Published in:
Proceedings Of The Fourteenth Eurosys Conference 2019 (Eurosys '19)
Presented at:
14th EuroSys Conference, Dresden, GERMANY, Mar 25-28, 2019
Year:
Jan 01 2019
Publisher:
New York, ASSOC COMPUTING MACHINERY
ISBN:
978-1-4503-6281-8
Laboratories:




 Record created 2019-07-04, last modified 2019-08-30


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)