Implement exponential backoff for connections to Block Nodes

[derektriley]

Background

For connections to Block Nodes, an exponential backoff algorithm should be implemented for whenever the consensus node is establishing/reconnecting to a Block node.

Acceptance Criteria

• An exponential backoff algorithm should be implemented for whenever the consensus node is establishing/reconnecting to a Block node.

Dependencies

No response

Definition of Ready (DoR) Checklist

• Clear acceptance criteria
• Clear and detailed description
• Dependencies identified
• Links to documentation
• Should be completable in 2-3 Days
• Initial draft of Low-level design document
• At least high level test plan
• Groomed/Estimated

Definition of Done (DoD) Checklist

• Acceptance Criteria complete
• No Codacy issues greater than minor (in new code)
• JavaDocs updated/created
• Code commented
• Unit tests created/updated
• 80% test code coverage (in new code)
• Happy Path and major negative cases in HAPI tests as applicable