Operações de taxa de transferência (RU/s) com o PowerShell para um espaço de chave ou tabela para o Azure Cosmos DB - API para Cassandra

APLICA-SE A: Cassandra

Nota

Recomendamos que utilize o módulo Azure Az do PowerShell para interagir com o Azure. Para começar, consulte Instalar o Azure PowerShell. Para saber como migrar para o módulo do Az PowerShell, veja Migrar o Azure PowerShell do AzureRM para o Az.

Este exemplo requer o Azure PowerShell Az 5.4.0 ou posterior. Execute Get-Module -ListAvailable Az para ver quais versões estão instaladas. Se você precisar instalar, consulte Instalar o módulo do Azure PowerShell.

Execute Connect-AzAccount para entrar no Azure.

Obtenção de débito

# 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

Taxa de transferência de atualização

# 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
}

Migrar taxa de transferência

# 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

Limpar a implementação

Depois de executar o script de exemplo, pode ser utilizado o seguinte comando para remover o grupo de recursos e todos os recursos associados ao mesmo.

Remove-AzResourceGroup -ResourceGroupName "myResourceGroup"

Explicação do script

Este script utiliza os seguintes comandos. Cada comando na tabela liga à documentação específica do comando.

Comando	Notas
BD do Cosmos para o Azure
Get-AzCosmosDBCassandraKeyspaceThroughput	Obtém o valor de taxa de transferência da API para Cassandra Keyspace.
Get-AzCosmosDBCassandraTableThroughput	Obtém o valor de taxa de transferência da API para Cassandra Table.
Update-AzCosmosDBCassandraKeyspaceThroughput	Atualiza o valor de taxa de transferência da API para Cassandra Keyspace.
Update-AzCosmosDBCassandraTableThroughput	Atualiza o valor da taxa de transferência da API para Cassandra Table.
Invoke-AzCosmosDBCassandraKeyspaceThroughputMigration	Migre a taxa de transferência de uma API para Cassandra Keyspace.
Invoke-AzCosmosDBCassandraTableThroughputMigration	Migre a taxa de transferência de uma API para Cassandra Table.
Grupos de Recursos do Azure
Remove-AzResourceGroup	Elimina um grupo de recursos, incluindo todos os recursos aninhados.

Próximos passos

Para obter mais informações sobre o Azure PowerShell, veja Documentação do Azure PowerShell.