63 lines
2.0 KiB
Go
63 lines
2.0 KiB
Go
// Copyright 2023 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package proto
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import "github.com/docker/go-units"
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// ManagedNode is a TiDB node that is managed by the framework.
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type ManagedNode struct {
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// ID see GenerateExecID, it's named as host in the meta table.
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ID string
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// Role of the node, either "" or "background"
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// all managed node should have the same role
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Role string
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CPUCount int
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}
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// NodeResource is the resource of the node.
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// exported for test.
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type NodeResource struct {
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TotalCPU int
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TotalMem int64
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TotalDisk uint64
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}
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// NewNodeResource creates a new NodeResource.
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func NewNodeResource(totalCPU int, totalMem int64, totalDisk uint64) *NodeResource {
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return &NodeResource{
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TotalCPU: totalCPU,
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TotalMem: totalMem,
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TotalDisk: totalDisk,
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}
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}
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// NodeResourceForTest is only used for test.
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var NodeResourceForTest = NewNodeResource(32, 32*units.GB, 100*units.GB)
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// GetStepResource gets the step resource according to concurrency.
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func (nr *NodeResource) GetStepResource(concurrency int) *StepResource {
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return &StepResource{
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CPU: NewAllocatable(int64(concurrency)),
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// same proportion as CPU
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Mem: NewAllocatable(int64(float64(concurrency) / float64(nr.TotalCPU) * float64(nr.TotalMem))),
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}
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}
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// GetTaskDiskResource gets available disk for a task.
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func (nr *NodeResource) GetTaskDiskResource(concurrency int, quotaHint uint64) uint64 {
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availableDisk := min(nr.TotalDisk, quotaHint)
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return uint64(float64(concurrency) / float64(nr.TotalCPU) * float64(availableDisk))
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}
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