miniraft

Type Members

1. case class AppendEntries[T](term: Term, leaderId: NodeId, commitIndex: LogIndex, prevLogIndex: LogIndex, prevLogTerm: Term, entry: Option[T]) extends RaftRequest with Product with Serializable

   

   The first request sent should be commitIndex: 0 prevIndex : 0 prevTerm : 0

   The first request sent should be commitIndex: 0 prevIndex : 0 prevTerm : 0

   (to which the initial response would be) matchIndex: 1 // the most recent uncommitted index

   The next request would be:

   commmitIndex : 1 prevIndex : 1 // the recipient's match index prevTerm : 2 // the first term which has a leader

   term

   our (the leader's) term

   leaderId

   our (the leader's) id

   commitIndex

   the index this commit is for.

   prevLogIndex

   the last known (or assumed) index as we know it. If the receiver replies w/ a non-success response, this index is decremented and retried

   prevLogTerm

   the term of the log index

   entry

   the entry to append ... which are only non-empty if a previous AppendEntries request came back successfully

2. case class AppendEntriesResponse(term: Term, success: Boolean, matchIndex: LogIndex) extends RaftResponse with Product with Serializable

   

3. trait LeaderApi[T] extends AnyRef

   

4. trait RaftEndpoint[T] extends AnyRef

   

   A generic representatino of a raft node -- simply something which can respond to RaftRequest messages

5. sealed trait RaftRequest extends AnyRef

   

6. sealed trait RaftResponse extends AnyRef

   

7. case class RequestVote(term: Term, candidateId: NodeId, lastLogIndex: LogIndex, lastLogTerm: Term) extends RaftRequest with Product with Serializable

   

   TODO - add our latest commit (applied) index

   TODO - add our latest commit (applied) index

   lastLogIndex

   our latest log index

8. case class RequestVoteResponse(term: Term, granted: Boolean) extends RaftResponse with Product with Serializable

   

9. trait UpdateResponse extends AnyRef

   

   Provides a means to keep track of all the 'append entries' responses received for a given end-user (client) request.

   Provides a means to keep track of all the 'append entries' responses received for a given end-user (client) request. The 'result' can be used to finally reply to the user request as it completes when a quorum of results confirms (or denies) the success of the update