sys_bkgd_migration_change_member_list_timeout

2025-11-14 07:33:33  Updated

Note

This parameter is available starting with V2.2.50.

Description

sys_bkgd_migration_change_member_list_timeout specifies the timeout period for changing the Paxos member list during a replica migration.

Privilege requirements

  • Query the parameter

    The sys tenant and all user tenants can use the SHOW PARAMETERS statement or the GV$OB_PARAMETERS view to query this parameter.

  • Modify the parameter

    Only the sys tenant can modify this parameter. User tenants cannot modify this parameter.

Attributes

Attribute Description
Type Time
Default value 20s

Note

For V4.0.0, the default value is changed from 1h to 20s.

Value range [0s, 24 h]
Modifiable Yes. You can use the ALTER SYSTEM SET statement to modify the parameter.
Effective upon OBServer node restart No. The setting takes effect immediately.

Examples

Set the timeout period for changing the Paxos member list during a replica migration to 20s.

obclient> ALTER SYSTEM SET sys_bkgd_migration_change_member_list_timeout = '20s';

References

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