Personalizar clusters HDInsight usando o Bootstrap

Os scripts de bootstrap permitem instalar e configurar componentes no Azure HDInsight programaticamente.

Há três abordagens para definir as definições do arquivo de configuração à medida que o cluster HDInsight é criado:

  • Utilizar o Azure PowerShell
  • Utilizar o .NET SDK
  • Utilizar o modelo do Azure Resource Manager

Por exemplo, usando esses métodos programáticos, você pode configurar opções nestes arquivos:

  • clusterIdentity.xml
  • núcleo-site.xml
  • porta de entrada.xml
  • HBAse-EnV.xml
  • hbase-site.xml
  • hdfs-site.xml
  • colmeia-env.xml
  • colmeia-sítio.xml
  • site-mapeado
  • oozie-site.xml
  • OOZIE-ENV.xml
  • tez-site.xml
  • webhcat-site.xml
  • fio-sítio.xml
  • server.properties (configuração kafka-broker)

Para obter informações sobre como instalar mais componentes no cluster HDInsight durante o tempo de criação, consulte Personalizar clusters HDInsight usando Ação de Script (Linux).

Pré-requisitos

  • Se estiver usando o PowerShell, você precisará do Módulo Az.

Utilizar o Azure PowerShell

O seguinte código do PowerShell personaliza uma configuração do Apache Hive :

Importante

O parâmetro Spark2Defaults pode precisar ser usado com Add-AzHDInsightConfigValue. Você pode passar valores vazios para o parâmetro, conforme mostrado no exemplo de código a seguir.

# hive-site.xml configuration
$hiveConfigValues = @{ "hive.metastore.client.socket.timeout"="90s" }

$config = New-AzHDInsightClusterConfig `
         -ClusterType "Spark"  `
    | Set-AzHDInsightDefaultStorage `
        -StorageAccountResourceId "$storageAccountResourceId" `
        -StorageAccountKey $defaultStorageAccountKey `
    | Add-AzHDInsightConfigValue `
        -HiveSite $hiveConfigValues `
        -Spark2Defaults @{}

New-AzHDInsightCluster `
    -ResourceGroupName $resourceGroupName `
    -ClusterName $hdinsightClusterName `
    -Location $location `
    -ClusterSizeInNodes 2 `
    -Version "4.0" `
    -HttpCredential $httpCredential `
    -SshCredential $sshCredential `
    -Config $config

Um script PowerShell de trabalho completo pode ser encontrado no Apêndice.

Para verificar a alteração:

  1. Navegue até https://CLUSTERNAME.azurehdinsight.net/ onde CLUSTERNAME está o nome do cluster.
  2. No menu à esquerda, navegue até Hive>Configs>Advanced.
  3. Expanda Site de colmeia avançado.
  4. Localize hive.metastore.client.socket.timeout e confirme se o valor é 90s.

Mais alguns exemplos sobre como personalizar outros arquivos de configuração:

# hdfs-site.xml configuration
$HdfsConfigValues = @{ "dfs.blocksize"="64m" } #default is 128MB in HDI 3.0 and 256MB in HDI 2.1

# core-site.xml configuration
$CoreConfigValues = @{ "ipc.client.connect.max.retries"="60" } #default 50

# mapred-site.xml configuration
$MapRedConfigValues = @{ "mapreduce.task.timeout"="1200000" } #default 600000

# oozie-site.xml configuration
$OozieConfigValues = @{ "oozie.service.coord.normal.default.timeout"="150" }  # default 120

Utilizar o .NET SDK

Consulte SDK do Azure HDInsight para .NET.

Utilizar modelo do Resource Manager

Você pode usar o bootstrap no modelo do Gerenciador de Recursos:

"configurations": {
    "hive-site": {
        "hive.metastore.client.connect.retry.delay": "5",
        "hive.execution.engine": "mr",
        "hive.security.authorization.manager": "org.apache.hadoop.hive.ql.security.authorization.DefaultHiveAuthorizationProvider"
    }
}

Hadoop customizes cluster bootstrap Azure Resource Manager template

Exemplo de trecho de modelo do Gerenciador de Recursos para alternar a configuração em spark2-defaults para limpar periodicamente os logs de eventos do armazenamento.

"configurations": {
    "spark2-defaults": {
        "spark.history.fs.cleaner.enabled": "true",
        "spark.history.fs.cleaner.interval": "7d",
        "spark.history.fs.cleaner.maxAge": "90d"
    }
}

Consulte também

Apêndice: Exemplo do PowerShell

Esse script do PowerShell cria um cluster HDInsight e personaliza uma configuração do Hive. Certifique-se de inserir valores para $nameToken, $httpPassworde $sshPassword.

####################################
# Service names and variables
####################################

$nameToken = "<ENTER AN ALIAS>"
$namePrefix = $nameToken.ToLower() + (Get-Date -Format "MMdd")
$resourceGroupName = $namePrefix + "rg"
$hdinsightClusterName = $namePrefix + "hdi"
$defaultStorageAccountName = $namePrefix + "store"
$defaultBlobContainerName = $hdinsightClusterName
$location = "East US"

####################################
# Connect to Azure
####################################

Write-Host "Connecting to your Azure subscription ..." -ForegroundColor Green
$sub = Get-AzSubscription -ErrorAction SilentlyContinue
if(-not($sub))
{
    Connect-AzAccount
}

# If you have multiple subscriptions, set the one to use
#$context = Get-AzSubscription -SubscriptionId "<subscriptionID>"
#Set-AzContext $context

####################################
# Create a resource group
####################################

Write-Host "Creating a resource group ..." -ForegroundColor Green
New-AzResourceGroup `
    -Name  $resourceGroupName `
    -Location $location

####################################
# Create a storage account and container
####################################
	
Write-Host "Creating the default storage account and default blob container ..."  -ForegroundColor Green
New-AzStorageAccount `
    -ResourceGroupName $resourceGroupName `
    -Name $defaultStorageAccountName `
    -Location $location `
    -SkuName Standard_LRS `
    -Kind StorageV2 `
    -EnableHttpsTrafficOnly 1
	
$defaultStorageAccountKey = (Get-AzStorageAccountKey `
                                -ResourceGroupName $resourceGroupName `
                                -Name $defaultStorageAccountName)[0].Value

$defaultStorageContext = New-AzStorageContext `
                                -StorageAccountName $defaultStorageAccountName `
                                -StorageAccountKey $defaultStorageAccountKey
								
New-AzStorageContainer `
    -Name $defaultBlobContainerName `
    -Context $defaultStorageContext #use the cluster name as the container name

####################################
# Create a configuration object
####################################

$hiveConfigValues = @{"hive.metastore.client.socket.timeout"="90s"}
$storageAccountResourceId = (Get-AzStorageAccount -ResourceGroupName $resourceGroupName ` -Name $defaultStorageAccountName).Id

$config = New-AzHDInsightClusterConfig `
          -ClusterType "Spark"  `
    | Set-AzHDInsightDefaultStorage `
        -StorageAccountResourceId "$storageAccountResourceId" `
        -StorageAccountKey $defaultStorageAccountKey `
    | Add-AzHDInsightConfigValue `
        -HiveSite $hiveConfigValues `
		-Spark2Defaults @{}
		
####################################
# Set Ambari admin username/password
####################################

$httpUserName = "admin"  #HDInsight cluster username
$httpPassword = '<ENTER A PASSWORD>'

$httpPW = ConvertTo-SecureString -String $httpPassword -AsPlainText -Force
$httpCredential = New-Object System.Management.Automation.PSCredential($httpUserName,$httpPW)

####################################
# Set ssh username/password
####################################

$sshUserName = "sshuser" #HDInsight ssh user name
$sshPassword = '<ENTER A PASSWORD>'

$sshPW = ConvertTo-SecureString -String $sshPassword -AsPlainText -Force
$sshCredential = New-Object System.Management.Automation.PSCredential($sshUserName,$sshPW)

####################################
# Create an HDInsight cluster
####################################

New-AzHDInsightCluster `
    -ResourceGroupName $resourceGroupName `
    -ClusterName $hdinsightClusterName `
    -Location $location `
    -ClusterSizeInNodes 2 `
    -Version "4.0" `
    -HttpCredential $httpCredential `
    -SshCredential $sshCredential `
    -Config $config
	
####################################
# Verify the cluster
####################################

Get-AzHDInsightCluster `
    -ClusterName $hdinsightClusterName