com.netflix.fenzo

Interface VirtualMachineCurrentState

public interface VirtualMachineCurrentState

Represents the current state of the host (virtual machine) that Fenzo is considering for a task assignment. A fitness calculator plugin may use the information from this state object to influence how it optimizes task placement decisions.

Method Summary

Modifier and Type	Method and Description
java.util.Collection<org.apache.mesos.Protos.Offer>	getAllCurrentOffers() Get all offers for the VM that represent the available resources.
VirtualMachineLease	getCurrAvailableResources() Returns a VM lease object representing totals of resources from all available leases on this host for the current scheduling run.
long	getDisabledUntil() Returns the time until which the given host remains disabled.
java.lang.String	getHostname() Get the name of the host on which the virtual machine is running.
java.util.Map<java.lang.String,PreferentialNamedConsumableResourceSet>	getResourceSets() Get a map of resource sets of the virtual machine.
java.util.Collection<TaskRequest>	getRunningTasks() Get a list of those tasks that had already been assigned to this host before the current scheduling run started.
java.util.Collection<TaskAssignmentResult>	getTasksCurrentlyAssigned() Get list of task assignment results for this host so far in the current scheduling run.

Method Detail

getHostname

java.lang.String getHostname()

Get the name of the host on which the virtual machine is running.

Returns:

the hostname

getResourceSets

java.util.Map<java.lang.String,PreferentialNamedConsumableResourceSet> getResourceSets()

Get a map of resource sets of the virtual machine.

Returns:

The map of resource sets

getCurrAvailableResources

VirtualMachineLease getCurrAvailableResources()

Returns a VM lease object representing totals of resources from all available leases on this host for the current scheduling run.

Returns:

a lease object that represents resources that are currently available on the host

getAllCurrentOffers

java.util.Collection<org.apache.mesos.Protos.Offer> getAllCurrentOffers()

Get all offers for the VM that represent the available resources. There may be more than one offer over time if Mesos master offered partial resources for the VM multiple times.

Returns:

A collection of Mesos resource offers.

getTasksCurrentlyAssigned

java.util.Collection<TaskAssignmentResult> getTasksCurrentlyAssigned()

Get list of task assignment results for this host so far in the current scheduling run.

Returns:

a collection of tasks that the current scheduling iteration assigned to this host but that are not launched/executing yet

getRunningTasks

java.util.Collection<TaskRequest> getRunningTasks()

Get a list of those tasks that had already been assigned to this host before the current scheduling run started.

Returns:

a collection of the tasks running on this host

getDisabledUntil

long getDisabledUntil()

Returns the time until which the given host remains disabled.

Returns:

time until which the host will remain disabled or 0 if the host is enabled