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Copy file name to clipboardExpand all lines: src/connections/storage/catalog/azuresqldw/index.md
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- '/connections/warehouses/catalog/azuresqldw/'
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---
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Azure's [Azure Synapse Analytics](https://azure.microsoft.com/en-us/services/synapse-analytics/), previously known as Azure SQL Data Warehouse, is a limitless analytics service that brings together enterprise data warehousing and Big Data analytics.
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Azure's [Azure Synapse Analytics](https://azure.microsoft.com/en-us/services/synapse-analytics/){:target="_blank"}, previously known as Azure SQL Data Warehouse, is a limitless analytics service that brings together enterprise data warehousing and Big Data analytics.
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## Getting Started
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There are four main steps to get started with Segment:
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1. Have an [Azure subscription](https://azure.microsoft.com/en-us/free/)
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2. Provision [SQL Data Warehouse (Dedicated SQL Pool)](https://docs.microsoft.com/en-us/azure/sql-data-warehouse/create-data-warehouse-portal)
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1. Have an [Azure subscription](https://azure.microsoft.com/en-us/free/){:target="_blank"}.
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2. Provision [SQL Data Warehouse (Dedicated SQL Pool)](https://docs.microsoft.com/en-us/azure/sql-data-warehouse/create-data-warehouse-portal){:target="_blank"}.
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3. Give Segment access to your SQL Data Warehouse
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4. Configure the Destination in Segment
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GRANT CONTROL TO Segment;
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```
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Lastly, assign this new user a [resource allocation class](https://docs.microsoft.com/en-us/azure/sql-data-warehouse/resource-classes-for-workload-management). The default (`smallrc`) likely will not give Segment enough memory to perform bulk loads, so we recommend starting with `largerc`. The larger "Dynamic Resource Classes" give more memory, while allowing fewer concurrent queries, which is a better fit for Segment's loading strategy:
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Lastly, assign this new user a [resource allocation class](https://docs.microsoft.com/en-us/azure/sql-data-warehouse/resource-classes-for-workload-management){:target="_blank"}. The default (`smallrc`) likely will not give Segment enough memory to perform bulk loads, so we recommend starting with `largerc`. The larger "Dynamic Resource Classes" give more memory, while allowing fewer concurrent queries, which is a better fit for Segment's loading strategy:
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```sql
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EXEC sp_addrolemember 'largerc', 'Segment';
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```
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By default, Azure Synapse Analytics cannot be connected to from the public internet. In order for Segment to connect, a [server-level firewall rule](https://docs.microsoft.com/en-us/azure/sql-data-warehouse/create-data-warehouse-portal#create-a-server-level-firewall-rule) that allows connections from the [Segment IPs](/docs/connections/storage/warehouses/faq/#which-ips-should-i-whitelist) is needed.
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By default, Azure Synapse Analytics cannot be connected to from the public internet. In order for Segment to connect, a [server-level firewall rule](https://docs.microsoft.com/en-us/azure/sql-data-warehouse/create-data-warehouse-portal#create-a-server-level-firewall-rule){:target="_blank"} that allows connections from the [Segment IPs](/docs/connections/storage/warehouses/faq/#which-ips-should-i-whitelist){:target="_blank"} is needed.
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### Configure an Azure SQL Data Warehouse Destination in Segment
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### Making sure Segment has enough resources to load your data
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The default [resource allocation class](https://docs.microsoft.com/en-us/azure/sql-data-warehouse/resource-classes-for-workload-management) (ie: `smallrc`) likely will not give Segment enough memory to perform bulk loads, so we recommend using a larger class (eg: `largerc`). Larger classes allocate more memory, but limit the number of concurrent queries, which is a better fit for Segment's loading strategy.
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The default [resource allocation class](https://docs.microsoft.com/en-us/azure/sql-data-warehouse/resource-classes-for-workload-management){:target="_blank"} (ie: `smallrc`) likely will not give Segment enough memory to perform bulk loads, so we recommend using a larger class (eg: `largerc`). Larger classes allocate more memory, but limit the number of concurrent queries, which is a better fit for Segment's loading strategy.
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## Troubleshooting
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### Segment is not able to connect to Azure Synapse Analytics
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Make sure a [server-level firewall rule](https://docs.microsoft.com/en-us/azure/sql-data-warehouse/create-data-warehouse-portal#create-a-server-level-firewall-rule) that allows connections from the [Segment IPs](/docs/connections/storage/warehouses/faq/#which-ips-should-i-whitelist) is configured.
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Make sure a [server-level firewall rule](https://docs.microsoft.com/en-us/azure/sql-data-warehouse/create-data-warehouse-portal#create-a-server-level-firewall-rule){:target="_blank"} that allows connections from the [Segment IPs](/docs/connections/storage/warehouses/faq/#which-ips-should-i-whitelist){:target="_blank"} is configured.
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