使用 PowerShell 對 Azure Cosmos DB - API for Cassandra 的 keyspace 或資料表執行輸送量 (RU/秒) 作業

適用於： Cassandra

注意

建議您使用 Azure Az PowerShell 模組來與 Azure 互動。 若要開始使用，請參閱安裝 Azure PowerShell (部分機器翻譯)。 若要了解如何移轉至 Az PowerShell 模組，請參閱將 Azure PowerShell 從 AzureRM 移轉至 Az。

此範例需要 Azure PowerShell Az 5.4.0 或更新版本。 執行 Get-Module -ListAvailable Az 可查看已安裝的版本。 如果您需要安裝，請參閱安裝 Azure PowerShell 模組。

執行 Connect-AzAccount 來登入 Azure。

取得輸送量

# Reference: Az.CosmosDB | https://docs.microsoft.com/powershell/module/az.cosmosdb
# --------------------------------------------------
# Purpose
# Get keyspace or table throughput
# --------------------------------------------------
# Variables - ***** SUBSTITUTE YOUR VALUES *****
$resourceGroupName = "myResourceGroup" # Resource Group must already exist
$accountName = "myaccount" # Must be all lower case
$keyspaceName = "mykeyspace" # Keyspace with shared throughput
$tableName = "mytable" # Table with dedicated throughput
# --------------------------------------------------

Write-Host "Get keyspace shared throughput"
Get-AzCosmosDBCassandraKeyspaceThroughput -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -Name $keyspaceName

Write-Host "Get table dedicated throughput"
Get-AzCosmosDBCassandraTableThroughput -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -KeyspaceName $keyspaceName `
    -Name $tableName

更新輸送量

# Reference: Az.CosmosDB | https://docs.microsoft.com/powershell/module/az.cosmosdb
# --------------------------------------------------
# Purpose
# Update table throughput
# --------------------------------------------------
# Variables - ***** SUBSTITUTE YOUR VALUES *****
$resourceGroupName = "myResourceGroup" # Resource Group must already exist
$accountName = "myaccount" # Must be all lower case
$keyspaceName = "mykeyspace"
$tableName = "mytable"
$newRUs = 500
# --------------------------------------------------
$throughput = Get-AzCosmosDBCassandraTableThroughput -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -KeyspaceName $keyspaceName -Name $tableName

$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-AzCosmosDBCassandraTableThroughput -ResourceGroupName $resourceGroupName `
        -AccountName $accountName -KeyspaceName $keyspaceName `
        -Name $tableName -Throughput $newRUs
}

遷移輸送量

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

Write-Host "Migrate keyspace with standard throughput to autoscale throughput."
Invoke-AzCosmosDBCassandraKeyspaceThroughputMigration -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -Name $keyspaceName -ThroughputType Autoscale

Write-Host "Migrate keyspace with autoscale throughput to standard throughput."

Invoke-AzCosmosDBCassandraKeyspaceThroughputMigration -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -Name $keyspaceName -ThroughputType Manual

Write-Host "Migrate table with standard throughput to autoscale throughput."
Invoke-AzCosmosDBCassandraTableThroughputMigration -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -KeyspaceName $keyspaceName -Name $tableName -ThroughputType Autoscale

Write-Host "Migrate table with autoscale throughput to standard throughput."
Invoke-AzCosmosDBCassandraTableThroughputMigration -ResourceGroupName $resourceGroupName `
    -AccountName $accountName -KeyspaceName $keyspaceName -Name $tableName -ThroughputType Manual

清除部署

在執行過指令碼範例之後，您可以使用下列命令來移除資源群組和所有與其相關聯的資源。

Remove-AzResourceGroup -ResourceGroupName "myResourceGroup"

指令碼說明

此指令碼會使用下列命令。 下表中的每個命令都會連結至命令特定的文件。

Command	注意
Azure Cosmos DB
Get-AzCosmosDBCassandraKeyspaceThroughput	取得 API for Cassandra Keyspace 的輸送量值。
Get-AzCosmosDBCassandraTableThroughput	取得 API for Cassandra 資料表的輸送量值。
Update-AzCosmosDBCassandraKeyspaceThroughput	更新 API for Cassandra Keyspace 的輸送量值。
Update-AzCosmosDBCassandraTableThroughput	更新 API for Cassandra 資料表的輸送量值。
Invoke-AzCosmosDBCassandraKeyspaceThroughputMigration	遷移 API for Cassandra Keyspace 的輸送量。
Invoke-AzCosmosDBCassandraTableThroughputMigration	遷移 API for Cassandra 資料表的輸送量。
Azure 資源群組
Remove-AzResourceGroup	刪除資源群組，包括所有的巢狀資源。

下一步

如需有關 Azure PowerShell 的詳細資訊，請參閱 Azure PowerShell 文件。