nsqio/nsq

nsqd: refresh the address of nsqlookupd on DNS changes

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#1,233 opened on Jan 14, 2020

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featurehelp wanted

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Description

right now an nsqd client doesn't refresh it's ip connections to lookupd on lookupd DNS changes. this causes a problem on long running instances when a lookupd instance gets rebuilt.

Contributor guide

Research direction
Examine the existing connection logic between nsqd and nsqlookupd, then implement a mechanism to periodically resolve the DNS name and reconnect if the IP changes.
Tech stack
go
Domain
backend
Issue type
Bug
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.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GoGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60