mit-pdos/noria

Automatic failover for `View` and `Table` handles

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#105 opened on Sep 20, 2018

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enhancementgood first issuem-distribution

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Description

Currently the system can successfully recover from individual machine failures. However, user code must manually re-create any view and table handles that still reference resources on the old machine. This could instead be avoided by having the handles themselves detect lost connections and transparently re-establish new ones. The controller already knows the relevant network addresses, so it should just be a matter of asking it for them whenever a connection breaks.

Contributor guide

Research direction
Study the current implementation of View and Table handles to understand their connection setup. Identify how to detect a lost connection and how to query the controller for the new network addresses. Examine existing reconnection patterns in the codebase.
Tech stack
rust
Domain
backenddistributed systems
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.
1-2 days
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
Rust
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50