Herald: HAProxy agent for load feedback

May 2018

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NIMHANS Convention Centre, Bengaluru

##About Rootconf 2018 and who should attend:

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The 2018 edition is a single track conference. Day 1 – 10 May – features talks on security. Colin Charles (chief evangelist at Percona Foundation), Pukhraj Singh (former national cybersecurity manager at UIDAI), Shamim Reza (open source enthusiast), Alisha Gurung (network engineer at Bhutan Telecom) and Derick Thomas (former network engineer at VSNL and Airtel Bharti) will touch on important aspects of infrastructure, database, network and enterprise security.

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Herald: HAProxy agent for load feedback

Submitted Jan 27, 2018

Section: Crisp Talk Technical level: Advanced

Herald (https://github.com/helpshift/herald) is a haproxy agent we built to implement load feedback. This talk will explain the Haproxy load balancing problem we faced, why load feedback was required and how Herald solved the problem.

This should be interesting to folks familiar with load balancers, especially Haproxy.

Outline

Brief introduction to Haproxy
Explain the problem with load balancing when response times are uneven
Explain Load Feedback as the solution to the above problem
Explain the haproxy agent check feature and how that provides a load feedback mechanism
Introduce Herald as the haproxy agent check service
Questions

Speaker bio

I lead the Production Engineering Team at Helpshift, which is responsible for Helpshifts Infrastructure, Automations and Operations, Systems Architecture, Performance Engineering and so on. Spent almost a decade understanding, solving and setting up software solutions for small and large scale companies - from a SysAdmin to Tech Support, and now a Software Engineer - https://www.linkedin.com/in/raghusiddarth/