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Tuning the Aggressive TCP Behavior for Highly Concurrent HTTP Connections in Intra-Datacenter

Tuning the Aggressive TCP Behavior for Highly Concurrent HTTP Connections in Intra-Datacenter

Authors :
Jianer Chen
Tao Zhang
Jiawei Huang
Geyong Min
Yi Pan
Jianxin Wang
Source :
IEEE/ACM Transactions on Networking. 25:3808-3822
Publication Year :
2017
Publisher :
Institute of Electrical and Electronics Engineers (IEEE), 2017.

Abstract

Modern data centers host diverse hyper text transfer protocol (HTTP)-based services, which employ persistent transmission control protocol (TCP) connections to send HTTP requests and responses. However, the ON/OFF pattern of HTTP traffic disturbs the increase of TCP congestion window, potentially triggering packet loss at the beginning of ON period. Furthermore, the transmission performance becomes worse due to severe congestion in the concurrent transfer of HTTP response. In this paper, we provide the first extensive study to investigate the root cause of performance degradation of highly concurrent HTTP connections in data center network. We further present the design and implementation of TCP-TRIM, which employs probe packets to smooth the aggressive increase of congestion window in persistent TCP connection and leverages congestion detection and control at end-host to limit the growth of switch queue length under highly concurrent TCP connections. The experimental results of at-scale simulations and real implementations demonstrate that TCP-TRIM reduces the completion time of HTTP response by up to 80%, while introducing little deployment overhead only at the end hosts.

Details

ISSN :
15582566 and 10636692
Volume :
25
Database :
OpenAIRE
Journal :
IEEE/ACM Transactions on Networking
Accession number :
edsair.doi...........ce8a4c1aad08d221ed462f5bbd95ef0d
Full Text :
https://doi.org/10.1109/tnet.2017.2759300