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使用 PowerShell 对 Azure Cosmos DB - API for Gremlin 的数据库或图进行吞吐量 (RU/s) 操作

项目
08/15/2024

适用对象： Gremlin

注意

建议使用 Azure Az PowerShell 模块与 Azure 交互。若要开始，请参阅安装 Azure PowerShell。若要了解如何迁移到 Az PowerShell 模块，请参阅将 Azure PowerShell 从 AzureRM 迁移到 Az。

本示例需要 Azure PowerShell Az 5.4.0 或更高版本。运行 Get-Module -ListAvailable Az，查看已安装哪些版本。如果需要安装，请参阅安装 Azure PowerShell 模块。

通过运行 Connect-AzAccount 登录到 Azure。

获取吞吐量

# Reference: Az.CosmosDB | https://docs.microsoft.com/powershell/module/az.cosmosdb
# --------------------------------------------------
# Purpose
# Get database or graph throughput
# --------------------------------------------------
# Variables - ***** SUBSTITUTE YOUR VALUES *****
$resourceGroupName = "myResourceGroup" # Resource Group must already exist
$accountName = "myaccount" # Must be all lower case
$databaseName = "myDatabase"
$graphName = "myGraph"
# --------------------------------------------------

Write-Host "Get database shared throughput"
Get-AzCosmosDBGremlinDatabaseThroughput -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -Name $databaseName

Write-Host "Get graph dedicated throughput"
Get-AzCosmosDBGremlinGraphThroughput -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -DatabaseName $databaseName `
    -Name $graphName

更新吞吐量

# Reference: Az.CosmosDB | https://docs.microsoft.com/powershell/module/az.cosmosdb
# --------------------------------------------------
# Purpose
# Update graph throughput
# --------------------------------------------------
# Variables - ***** SUBSTITUTE YOUR VALUES *****
$resourceGroupName = "myResourceGroup" # Resource Group must already exist
$accountName = "myaccount" # Must be all lower case
$databaseName = "myDatabase"
$graphName = "myGraph"
$newRUs = 500
# --------------------------------------------------

$throughput = Get-AzCosmosDBGremlinGraphThroughput `
    -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -DatabaseName $databaseName `
    -Name $graphName

$currentRUs = $throughput.Throughput
$minimumRUs = $throughput.MinimumThroughput

Write-Host "Current throughput is $currentRUs. Minimum allowed throughput is $minimumRUs."

if ([int]$newRUs -lt [int]$minimumRUs) {
    Write-Host "Requested new throughput of $newRUs is less than minimum allowed throughput of $minimumRUs."
    Write-Host "Using minimum allowed throughput of $minimumRUs instead."
    $newRUs = $minimumRUs
}

if ([int]$newRUs -eq [int]$currentRUs) {
    Write-Host "New throughput is the same as current throughput. No change needed."
}
else {
    Write-Host "Updating throughput to $newRUs."

    Update-AzCosmosDBGremlinGraphThroughput -ResourceGroupName $resourceGroupName `
        -AccountName $accountName -DatabaseName $databaseName `
        -Name $graphName -Throughput $newRUs
}

迁移吞吐量

# Reference: Az.CosmosDB | https://docs.microsoft.com/powershell/module/az.cosmosdb
# --------------------------------------------------
# Purpose
# Migrate a database or graph to autoscale or standard (manual) throughput
# --------------------------------------------------
# Variables - ***** SUBSTITUTE YOUR VALUES *****
$resourceGroupName = "myResourceGroup" # Resource Group must already exist
$accountName = "myaccount" # Must be all lower case
$databaseName = "myDatabase"
$graphName = "myGraph"
# --------------------------------------------------

Write-Host "Migrate database with standard throughput to autoscale throughput."
Invoke-AzCosmosDBGremlinDatabaseThroughputMigration -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -Name $databaseName -ThroughputType Autoscale

Write-Host "Migrate database with autoscale throughput to standard throughput."
Invoke-AzCosmosDBGremlinDatabaseThroughputMigration -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -Name $databaseName -ThroughputType Manual

Write-Host "Migrate graph with standard throughput to autoscale throughput."
Invoke-AzCosmosDBGremlinGraphThroughputMigration -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -DatabaseName $databaseName -Name $graphName -ThroughputType Autoscale

Write-Host "Migrate graph with autoscale throughput to standard throughput."
Invoke-AzCosmosDBGremlinGraphThroughputMigration -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -DatabaseName $databaseName -Name $graphName -ThroughputType Manual

清理部署

运行脚本示例后，可以使用以下命令删除资源组以及与其关联的所有资源。

Remove-AzResourceGroup -ResourceGroupName "myResourceGroup"

脚本说明

此脚本使用以下命令。表中的每条命令均链接到特定于命令的文档。

命令	注释
Azure Cosmos DB
Get-AzCosmosDBGremlinDatabaseThroughput	获取 API for Gremlin 数据库的吞吐量值。
Get-AzCosmosDBGremlinGraphThroughput	获取 API for Gremlin 图的吞吐量值。
Update-AzCosmosDBGremlinDatabaseThroughput	更新 API for Gremlin 数据库的吞吐量值。
Update-AzCosmosDBGremlinGraphThroughput	更新 API for Gremlin 图的吞吐量值。
Invoke-AzCosmosDBGremlinDatabaseThroughputMigration	迁移 API for Gremlin 数据库的吞吐量。
Invoke-AzCosmosDBGremlinGraphThroughputMigration	迁移 API for Gremlin 图的吞吐量。
Azure 资源组
Remove-AzResourceGroup	删除资源组，包括所有嵌套的资源。

后续步骤

有关 Azure PowerShell 的详细信息，请参阅 Azure PowerShell 文档。

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