Google Cloud Pub/Sub is a messaging service that allows you to send and receive messages between independent applications. It is designed to provide reliable, many-to-many, asynchronous messaging between applications. Pub/Sub decouples senders and receivers, allowing for secure and scalable communication.
When using Google Pub/Sub, you might encounter the error: PUSH_ENDPOINT_NOT_FOUND. This error indicates that the specified push endpoint could not be found, which prevents messages from being delivered to the intended destination.
When this error occurs, you will notice that messages are not being delivered to your push endpoint. Instead, they remain in the subscription queue, and you may see error logs indicating the endpoint is not reachable.
The PUSH_ENDPOINT_NOT_FOUND error typically arises when the URL specified for the push endpoint is incorrect or the server hosting the endpoint is not running. This can happen due to typos in the URL, DNS issues, or server downtime.
To resolve the PUSH_ENDPOINT_NOT_FOUND error, follow these steps:
Ensure that the URL specified for the push endpoint is correct. Double-check for any typos or formatting errors. The URL should be a valid HTTPS endpoint.
https://your-server.com/your-endpoint
Make sure that the server hosting the push endpoint is running and accessible. You can use tools like Pingdom or Uptrends to check the server's uptime and availability.
Verify that the domain name resolves correctly to the server's IP address. Use the nslookup or dig command to check DNS resolution:
nslookup your-server.com
Ensure that there are no firewall rules or network settings blocking incoming requests to your server. Check your server's firewall configuration and any network security settings that might affect connectivity.
By following these steps, you should be able to resolve the PUSH_ENDPOINT_NOT_FOUND error in Google Pub/Sub. Ensuring that your push endpoint URL is correct and that your server is running will help maintain seamless message delivery. For more information, refer to the Google Cloud Pub/Sub Push Documentation.
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