Package org.apache.storm.container.cgroup

Interface CgroupOperation

All Known Implementing Classes:

CgroupCenter

public interface CgroupOperation

An interface to implement the basic functions to manage cgroups such as mount and mounting a hiearchy and creating cgroups. Also contains functions to access basic information of cgroups.

Method Summary

Modifier and Type	Method	Description
void	createCgroup(CgroupCommon cgroup)	create a cgroup.
void	deleteCgroup(CgroupCommon cgroup)	delete a cgroup.
List<Hierarchy>	getHierarchies()	Get a list of hierarchies.
Hierarchy	getHierarchyWithSubSystem(SubSystemType subsystem)	get the first hierarchy that has a certain subsystem isMounted.
Hierarchy	getHierarchyWithSubSystems(List<SubSystemType> subSystems)	get the first hierarchy that has a certain list of subsystems isMounted.
Set<SubSystem>	getSubSystems()	get a list of available subsystems.
boolean	isMounted(Hierarchy hierarchy)	check if a hiearchy is mounted.
boolean	isSubSystemEnabled(SubSystemType subsystem)	Check if a subsystem is enabled.
void	mount(Hierarchy hierarchy)	mount a hierarchy.
void	umount(Hierarchy hierarchy)	umount a heirarchy.

Method Details

getHierarchies

List<Hierarchy> getHierarchies()

Get a list of hierarchies.

getSubSystems

Set<SubSystem> getSubSystems()

get a list of available subsystems.

isSubSystemEnabled

boolean isSubSystemEnabled(SubSystemType subsystem)

Check if a subsystem is enabled.

getHierarchyWithSubSystem

Hierarchy getHierarchyWithSubSystem(SubSystemType subsystem)

get the first hierarchy that has a certain subsystem isMounted.

getHierarchyWithSubSystems

Hierarchy getHierarchyWithSubSystems(List<SubSystemType> subSystems)

get the first hierarchy that has a certain list of subsystems isMounted.

isMounted

boolean isMounted(Hierarchy hierarchy)

check if a hiearchy is mounted.

mount

void mount(Hierarchy hierarchy)
    throws IOException

mount a hierarchy.

Throws:

IOException

umount

void umount(Hierarchy hierarchy)
     throws IOException

umount a heirarchy.

Throws:

IOException

createCgroup

void createCgroup(CgroupCommon cgroup)
           throws SecurityException

create a cgroup.

Throws:

SecurityException

deleteCgroup

void deleteCgroup(CgroupCommon cgroup)
           throws IOException

delete a cgroup.

Throws:

IOException