box.info.election

box.info.election¶

The current state of this replica set node in regard to leader election. The following information is provided:

state – the election state (mode) of the node. Possible values are leader, follower, or candidate. For more details, refer to description of the leader election process. When replication.failover is set to election, the node is writable only in the leader state.
term – the current election term.
vote – the ID of a node the current node votes for. If the value is 0, it means the node hasn’t voted in the current term yet.
leader – a leader node ID in the current term. If the value is 0, it means the node doesn’t know which node is the leader in the current term.
leader_name – a leader name. Returns nil if there is no leader in a cluster or box.NULL if a leader does not have a name. Since version 3.0.0.
leader_idle – time in seconds since the last interaction with the known leader. Since version 2.10.0.

Примечание

IDs in the box.info.election output are the replica IDs visible in the box.info.id output on each node and in the _cluster space.

Пример:

auto_leader:instance001> box.info.election
---
- leader_idle: 0
  leader_name: instance001
  state: leader
  vote: 2
  term: 3
  leader: 2
...