enable_logservice

Description

enable_logservice specifies whether to enable the log service mode.

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

  You must configure this parameter using the -o startup parameter of an OBServer node. The parameter is specified during the initial startup of the cluster's RS node and cannot be dynamically modified after it takes effect. User tenants do not have the privilege to modify this parameter.

Attributes

Considerations

When you scale out the cluster, the enable_logservice parameter of the new node must be set to the same value as that of the existing nodes. Otherwise, the log service status may be abnormal or the root service election may fail. In other words, the enable_logservice parameter of all nodes in the cluster must remain globally consistent.

Examples

To start an OBServer node in the log service mode, set the enable_logservice parameter to True in the -o parameter of the command line.

./observer -P 42904 -p 42905
-z zone1
-n ob22.xxxx.qqq.xx.xx.xx.xx
-c 1
-o memory_limit=400G,enable_logservice=True