COROSYNC-OBJCTL(8)

NAME

corosync-objctl - Configure objects in the Object Database

corosync-objctl [-c|-w|-d|-a|-t-h] <OBJECT-SPEC>...

corosync-objctl is used to configure objects within the object database at runtime.

There are two types of entities: Objects and Key=Value pairs
Objects: Objects are container like entities that can hold other entities. They are specified as "objectA"."objectB". An example is logging.logger.
Key=Value pairs: These are the entities that actually hold values (read database "fields"). They are specified as object.key=value or just object.key if you are reading.

-c Create a new object.

-d Delete an existing object.

-w Use this option when you want to write a new value to a key.

-a Display all values currently available.

-t Track changes to an object and it's children. As changes are: made to the object they are printed out. this is kind of like a "tail -f" for the object database.
-h Print basic usage.

Print the objOne object (shouldn't exist yet).: $ corosync-objctl objOne
Create the objOne object.: $ corosync-objctl -c objOne
Print the objOne object (empty).: $ corosync-objctl objOne
objOne
Write two new keys to the objOne object.: $ corosync-objctl -w objOne.max=3000 objOne.min=100
Print the objOne object (with the two new keys).: $ corosync-objctl objOne
objOne.min=100
objOne.max=3000
Delete the objOne.min key: $ corosync-objctl -d objOne.min=100
Prove that is gone.: $ corosync-objctl objOne
objOne.max=3000
Delete the whole objOne object.: $ corosync-objctl -d objOne
Prove that is gone.: $ corosync-objctl objOne