The nova.virt.libvirt.instancejobtracker Module

class InstanceJobTracker

Bases: object

add_job(instance, pid)

Appends process_id of instance to cache.

This method will store the pid of a process in cache as a key: value pair which will be used to kill the process if it is running while deleting the instance. Instance uuid is used as a key in the cache and pid will be the value.

Parameters:

• instance – Object of instance
• pid – Id of the process

remove_job(instance, pid)

Removes pid of process from cache.

This method will remove the pid of a process from the cache.

Parameters:

• instance – Object of instance
• pid – Id of the process

terminate_jobs(instance)

Kills the running processes for given instance.

This method is used to kill all running processes of the instance if it is deleted in between.

Parameters:instance – Object of instance