[Bug]: Implement ReadIndex

[bsbds]

Description about the bug

When a network partition occurs, the leader in the smaller partition may not be aware that a new leader has already been elected in the cluster. If the original leader continues to serve read-only requests to clients during this time, it could result in stale reads. We should implement ReadIndex to enable read-only request on the leader.

Version

0.1.0

Relevant log output

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[github-actions]

👋 Thanks for opening this issue!

Reply with the following command on its own line to get help or engage:

• /contributing-agreement : to print Contributing Agreements.
• /assignme : to assign this issue to you.

[Phoenix500526]

Closed in PR #857