box.ctl.demote() | Tarantool
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Since version 2.10.0.

Revoke the leader role from the instance.

On synchronous transaction queue owner, the function works in the following way:

  • If box.cfg.election_mode is off, the function writes a DEMOTE request to WAL. The DEMOTE request clears the ownership of the synchronous transaction queue, while the PROMOTE request assigns it to a new instance.
  • If box.cfg.election_mode is enabled in any mode, then the function makes the instance start a new term and give up the leader role.

On instances that are not queue owners, the function does nothing and returns immediately.

Parameters: none

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