corosync-objctl(8) - Linux man page
Name
corosync-objctl - Configure objects in the Object Database
Synopsis
corosync-objctl [-b] [-c|-w|-d|-a|-t-h] <OBJECT-SPEC>...
Description
corosync-objctl is used to configure objects within the object database at runtime.
Object-spec
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.
Options
- -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.
-b
Display binary values in BASH backslash escape sequences format.
Examples
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
See Also
confdb_keys(8), confdb_initialize(3)
Author
Angus Salkeld