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Copy file name to clipboardExpand all lines: articles/hdinsight/hdinsight-custom-ambari-db.md
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@@ -4,7 +4,7 @@ description: Learn how to create HDInsight clusters with your own custom Apache
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ms.service: azure-hdinsight
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ms.custom: hdinsightactive
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ms.topic: how-to
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ms.date: 09/06/2024
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ms.date: 12/27/2024
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---
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# Set up HDInsight clusters with a custom Ambari DB
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> Please use the following recommended SQL DB and Headnode VM for your HDInsight cluster. Please don't use default Ambari DB (S0) for any production environment.
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> [!NOTE]
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> You can use Managed Identity to authenticate with SQL database for Ambari. For more information, see [Use Managed Identity for SQL Database authentication in Azure HDInsight](./use-managed-identity-for-sql-database-authentication-in-azure-hdinsight.md)
Copy file name to clipboardExpand all lines: articles/hdinsight/hdinsight-hadoop-provision-linux-clusters.md
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@@ -140,17 +140,23 @@ If you want to retain your Hive tables after you delete a HDInsight cluster, use
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A HDInsight metastore that is created for one HDInsight cluster version can't be shared across different HDInsight cluster versions. For a list of HDInsight versions, see [Supported HDInsight versions](hdinsight-component-versioning.md#supported-hdinsight-versions).
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You can use Managed Identity to authenticate with SQL database for Hive. For more information, see [Use Managed Identity for SQL Database authentication in Azure HDInsight](./use-managed-identity-for-sql-database-authentication-in-azure-hdinsight.md)
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> [!IMPORTANT]
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> The default metastore provides an Azure SQL Database with a **basic tier 5 DTU limit (not upgradeable)**! Suitable for basic testing purposes. For large or production workloads, we recommend migrating to an external metastore.
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#### SQL database for Oozie
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To increase performance when using Oozie, use a custom metastore. A metastore can also provide access to Oozie job data after you delete your cluster.
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You can use Managed Identity to authenticate with SQL database for Oozie. For more information, see [Use Managed Identity for SQL Database authentication in Azure HDInsight](./use-managed-identity-for-sql-database-authentication-in-azure-hdinsight.md)
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#### SQL database for Ambari
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Ambari is used to monitor HDInsight clusters, make configuration changes, and store cluster management information as well as job history. The custom Ambari DB feature allows you to deploy a new cluster and setup Ambari in an external database that you manage. For more information, see [Custom Ambari DB](./hdinsight-custom-ambari-db.md).
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You can use Managed Identity to authenticate with SQL database for Ambari. For more information, see [Use Managed Identity for SQL Database authentication in Azure HDInsight](./use-managed-identity-for-sql-database-authentication-in-azure-hdinsight.md)
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> [!IMPORTANT]
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> You cannot reuse a custom Oozie metastore. To use a custom Oozie metastore, you must provide an empty Azure SQL Database when creating the HDInsight cluster.
1. Update the **Database Password** fields to the new SQL server database password.
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1. Click the **Test Connection** button to make sure the new password works.
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1. Click the **Save** button.
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1. Follow the Ambari prompts to save the config and Restart the required services.
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> [!NOTE]
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> You can use Managed Identity to authenticate with SQL database for Oozie. For more information, see [Use Managed Identity for SQL Database authentication in Azure HDInsight](./use-managed-identity-for-sql-database-authentication-in-azure-hdinsight.md)
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## Custom Ambari DB
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To use your own external database with Apache Ambari on HDInsight, see [Custom Apache Ambari database](hdinsight-custom-ambari-db.md).
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> [!NOTE]
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> You can use Managed Identity to authenticate with SQL database for Ambari. For more information, see [Use Managed Identity for SQL Database authentication in Azure HDInsight](./use-managed-identity-for-sql-database-authentication-in-azure-hdinsight.md)
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## Next steps
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*[Set up clusters in HDInsight with Apache Hadoop, Apache Spark, Apache Kafka, and more](./hdinsight-hadoop-provision-linux-clusters.md)
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