mirror of https://github.com/apache/cloudstack.git
60 lines
2.3 KiB
Java
Executable File
60 lines
2.3 KiB
Java
Executable File
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package com.cloud.capacity;
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import org.apache.cloudstack.storage.datastore.db.StoragePoolVO;
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import com.cloud.host.Host;
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import com.cloud.storage.VMTemplateVO;
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import com.cloud.utils.component.Manager;
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import com.cloud.vm.VirtualMachine;
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/**
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* Capacity Manager manages the different capacities
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* available within the Cloud Stack.
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*
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*/
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public interface CapacityManager extends Manager {
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public boolean releaseVmCapacity(VirtualMachine vm, boolean moveFromReserved, boolean moveToReservered, Long hostId);
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void allocateVmCapacity(VirtualMachine vm, boolean fromLastHost);
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/**
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* @param hostId Id of the host to check capacity
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* @param cpu required CPU
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* @param ram required RAM
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* @param cpuOverprovisioningFactor factor to apply to the actual host cpu
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*/
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boolean checkIfHostHasCapacity(long hostId, Integer cpu, long ram, boolean checkFromReservedCapacity, float cpuOverprovisioningFactor, float memoryOvercommitRatio, boolean considerReservedCapacity);
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void updateCapacityForHost(Host host);
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/**
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* @param pool storage pool
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* @param templateForVmCreation template that will be used for vm creation
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* @return total allocated capacity for the storage pool
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*/
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long getAllocatedPoolCapacity(StoragePoolVO pool, VMTemplateVO templateForVmCreation);
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/**
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* Check if specified host's running VM count has reach hypervisor limit
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* @param host the host to be checked
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* @return true if the count of host's running VMs >= hypervisor limit
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*/
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boolean checkIfHostReachMaxGuestLimit(Host host);
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}
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