akka/akka-http

Try several IP addresses for one host if one fails

Open

#236 opened on Sep 12, 2016

View on GitHub
 (4 comments) (0 reactions) (0 assignees)Scala (598 forks)batch import
1 - triagedhelp wantednice-to-have (low-prio)t:client

Repository metrics

Stars
 (1,311 stars)
PR merge metrics
 (Avg merge 1d 10h) (2 merged PRs in 30d)

Description

Issue by jrudolph Tuesday Feb 10, 2015 at 15:19 GMT Originally opened as https://github.com/akka/akka/issues/16827

From spray/spray#746:

The easiest strategy would be to try all the available addresses in a round-robin fashion on failed connection attempts and probably make the strategy configurable.

See https://groups.google.com/d/msg/spray-user/d6XNRVfjGpo/Y3UURzz4mewJ

/cc @sirthias

Contributor guide

Research direction
Investigate the client connection logic in Akka HTTP to understand how host resolution and connection attempts are handled. Look for existing round robin or fallback mechanisms and propose a strategy to try multiple IP addresses on failure.
Tech stack
scala
Domain
backendnetworking
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
ScalaAkka HTTP
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50