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Azure Microsoft 365

Solving Custom DNS Server Issues for a Smooth Connection from Databricks to Event Hub

Custom DNS Server Issues While Connecting from Databricks to Event Hub
Introduction
Many organizations are looking to migrate their data to the cloud. To do so, they need to use cloud services that are reliable and scalable. One of these services is Event Hub, which provides a secure and scalable messaging service for cloud applications. However, when using Event Hub, customers may experience issues when connecting from Databricks to Event Hub. This article will discuss the challenges of using custom DNS servers in this scenario and how to mitigate them.

Challenges with Custom DNS Servers
The main challenge when using custom DNS servers is that they can cause latency issues when connecting from Databricks to Event Hub. This is due to the fact that the custom DNS servers do not have the same level of integration with Event Hub as the Azure-provided DNS servers. As a result, the custom DNS servers are not able to provide the same level of performance when connecting from Databricks to Event Hub.

Mitigating Challenges with Custom DNS Servers
There are a few steps customers can take to mitigate the challenges with custom DNS servers. The first is to ensure that the custom DNS servers are properly configured. This includes ensuring that the DNS servers are configured to respond to the same public IP address as the Azure-provided DNS servers. Additionally, customers should ensure that the custom DNS servers are configured to forward all requests to the Azure-provided DNS servers.

The second step customers can take is to use the Azure-provided DNS servers instead of the custom DNS servers. This will ensure that the connection between Databricks and Event Hub is as fast and reliable as possible. Additionally, it will reduce the amount of latency experienced when connecting from Databricks to Event Hub.

Conclusion
Custom DNS servers can cause latency issues when connecting from Databricks to Event Hub. However, there are steps customers can take to mitigate these issues. By ensuring that the custom DNS servers are properly configured and using the Azure-provided DNS servers instead, customers can ensure that their connection from Databricks to Event Hub is as fast and reliable as possible.
References:
Custom DNS server issues while connecting from Databricks to Event Hub
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1. Event Hub Custom DNS
2. Databricks DNS Issues
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