election_blacklist_interval specifies the time interval in which the leader replica cannot be re-elected as the leader after it is dismissed.
Note
This parameter is deprecated since OceanBase Database V4.0.0.
Attribute |
Description |
|---|---|
| Type | Time |
| Default value | 1800s |
| Value range | [0s, 24h] |
| Effective upon OBServer node restart | No |
Notice
The leader replica is added to the blocklist only when it stops acting as the leader and the observer process is not restarted. After the observer process restarts, the leader replica is not in the blocklist anymore.
OceanBase Database uses the election_blacklist_interval parameter to implement a blocklist feature. If a leader replica stops acting as the leader, from the moment when it becomes a follower, it would not be re-elected as the leader again within the time period specified by election_blacklist_interval. That is, that replica is added to the election blocklist.