feat: adjust snapshot interval, reduce the amount of raft log replay

[tomatoishealthy]

Summary by CodeRabbit

• Performance
  • Snapshots are now created more frequently, with the interval reduced to 30 seconds.
  • The snapshot threshold has been lowered to 200.

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ℹ️ Recent review info

⚙️ Run configuration

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Plan: Team

Run ID: bb584a3a-579f-4d13-8b38-80618ed459f6

📥 Commits

Reviewing files that changed from the base of the PR and between 5edbc69 and 16fc278.

📒 Files selected for processing (1)

• node/hakeeper/config.go

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📝 Walkthrough

Walkthrough

The default snapshot interval changes from 120 seconds to 30 seconds. The default snapshot threshold changes from 8192 to 200. TrailingLogs remains 1200.

Changes

Snapshot configuration

Layer / File(s)	Summary
Update snapshot defaults node/hakeeper/config.go	DefaultConfig() now sets Interval to 30 seconds and Threshold to 200. TrailingLogs remains unchanged.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: 🔵 Low · up to 16fc2

This makes HAKeeper create Raft snapshots and compact logs much more often, which should reduce replay time but may increase storage and runtime work during busy periods. The change is mergeable with owner awareness of snapshot latency and availability behavior under production workloads.

Suggested reviewers: dylancai9

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes both main changes: the snapshot interval adjustment and the reduction in Raft log replay.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 1 files.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

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