oracle / oracle/coherence

Dynamic backups

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25.09 enhancement
Dominant language
Java
Stars
470
Forks
80
PR merge metrics
No merged PRs in 30d

Description

As described already in discussion section it may for various reasons (work around to allow scale down while maintaining HA, mirror typical HA setup of cloud providers with 3 AZs, speed up get&getAll requests in 3 AZ cloud setups) be interesting to have backup count of 2 but in the event of an AZ failure it would be desirable to abandon the second backup to conserve memory.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the discussion section referenced in the issue and reading the existing backup and availability behavior for availability-zone failures. Define how a configured backup count of two should change after an AZ failure, including memory conservation and continued high availability, then identify the relevant implementation and tests before proposing the design.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
cloud, distributed-systems
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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