Google Pub/Sub NOT_FOUND error when accessing a Google Pub/Sub resource.

The specified resource does not exist.

Understanding Google Pub/Sub

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, asynchronous, and scalable messaging for cloud-based applications. Pub/Sub decouples services that produce events from services that process events, allowing for more flexible and scalable application architectures.

Identifying the NOT_FOUND Error

When working with Google Pub/Sub, you might encounter the NOT_FOUND error. This error typically occurs when you attempt to access a resource, such as a topic or subscription, that does not exist. The error message will usually indicate that the specified resource cannot be found.

Common Symptoms

Receiving a NOT_FOUND error message when trying to publish or subscribe to a topic.
Failure to list topics or subscriptions that you expect to be present.

Explaining the NOT_FOUND Issue

The NOT_FOUND error is a clear indication that the resource you are trying to access does not exist in the specified project. This could be due to a typo in the resource name, the resource being deleted, or attempting to access a resource in the wrong project.

Possible Causes

Incorrect topic or subscription name.
Resource was deleted or never created.
Attempting to access a resource in the wrong Google Cloud project.

Steps to Resolve the NOT_FOUND Error

To resolve the NOT_FOUND error, follow these steps:

Step 1: Verify Resource Names

Ensure that the topic or subscription name you are using is correct. Check for any typos or incorrect casing, as resource names are case-sensitive.

Step 2: Check Resource Existence

Use the Google Cloud Console or the gcloud command-line tool to verify that the resource exists:

gcloud pubsub topics list

or

gcloud pubsub subscriptions list

Ensure that the topic or subscription you are trying to access is listed.

Step 3: Confirm Project Context

Make sure you are operating in the correct Google Cloud project. You can set the project using:

gcloud config set project [PROJECT_ID]

Replace [PROJECT_ID] with your actual project ID.

Additional Resources

For more information on managing topics and subscriptions, refer to the Google Cloud Pub/Sub documentation. If you continue to experience issues, consider reaching out to Google Cloud Support for further assistance.

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MORE ISSUES

Google Pub/Sub Messages are not being delivered in the expected order.

Message ordering is not enabled for the topic.

Google Pub/Sub INVALID_MESSAGE_ID error encountered when processing messages in Google Pub/Sub.

The message ID is invalid or does not exist.

Google Pub/Sub The total bytes in a batch exceed the maximum allowed limit.

The batch size in terms of bytes is too large for Google Pub/Sub to process.

Google Pub/Sub INVALID_BATCH_SIZE error encountered when publishing messages.

The batch size exceeds the maximum allowed limit.

Google Pub/Sub SCHEMA_COMPATIBILITY_ERROR

The message does not conform to the schema's compatibility requirements.

Google Pub/Sub INVALID_ORDERING_KEY error encountered when publishing messages.

The ordering key is invalid or not supported.

Google Pub/Sub INVALID_SCHEMA error encountered when publishing or subscribing to messages.

The schema configuration is invalid or unsupported.

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Google Pub/Sub INVALID_EXPIRATION_POLICY error encountered when configuring a subscription.

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Google Pub/Sub INVALID_RETRY_POLICY

The retry policy configuration is invalid.

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The specified dead letter topic does not exist.

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The dead letter policy configuration is invalid.

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The project has reached the maximum number of topics allowed.

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The push endpoint is not responsive or is unable to handle incoming requests promptly.

Google Pub/Sub EXCEEDED_MAX_BYTES

The subscription has too many unacknowledged bytes.

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The push endpoint URL is incorrect or the server is not running.

Google Pub/Sub PUSH_ENDPOINT_UNAUTHORIZED error when trying to send messages to a push endpoint.

The push endpoint does not authorize the Pub/Sub service to send messages.

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The message format is invalid or unsupported.

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The topic name does not conform to the required format.

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Flow control settings are too restrictive.

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The ack ID has already been acknowledged.

Google Pub/Sub TOPIC_DELETED error encountered when attempting to publish or subscribe to a topic.

The topic you are trying to access has been deleted.

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The message payload is larger than the 10 MB limit set by Google Pub/Sub.

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The ack ID is invalid or does not exist.

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The message was not acknowledged within the configured ack deadline.

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The subscription has been deleted.

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The operation is not implemented or not supported.

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Google Pub/Sub OUT_OF_RANGE error encountered during operation.

The operation was attempted past the valid range.

Google Pub/Sub Operation was cancelled unexpectedly.

The operation was cancelled, typically by the caller.

Google Pub/Sub Operation rejected due to system state not meeting required preconditions.

The system is not in a state required for the operation's execution.

Google Pub/Sub Operation aborted due to concurrency issue

The operation was aborted, typically due to a concurrency issue.

Google Pub/Sub The request contains an invalid argument.

The request parameters do not conform to the API specifications.

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An internal error occurred within the Pub/Sub service.

Google Pub/Sub UNAUTHENTICATED error when accessing Google Pub/Sub.

The request does not have valid authentication credentials.

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The client does not have permission to access the requested resource.

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Google Pub/Sub INVALID_ACK_DEADLINE error encountered when setting the acknowledgment deadline for a subscription.

The acknowledgment deadline is set to a value outside the permissible range of 10 to 600 seconds.

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The batch size in terms of bytes is too large for Google Pub/Sub to process.

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The batch size exceeds the maximum allowed limit.

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The message ID is invalid or does not exist.

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Message ordering is not enabled for the topic.

Google Pub/Sub SCHEMA_COMPATIBILITY_ERROR

The message does not conform to the schema's compatibility requirements.

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The ordering key is invalid or not supported.

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The specified schema does not exist in the Google Pub/Sub configuration.

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The schema configuration is invalid or unsupported.

Google Pub/Sub Subscription expired error encountered when attempting to pull messages.

The subscription has expired due to inactivity.

Google Pub/Sub DEAD_LETTER_TOPIC_NOT_FOUND error encountered when using Google Pub/Sub.

The specified dead letter topic does not exist.

Google Pub/Sub INVALID_EXPIRATION_POLICY error encountered when configuring a subscription.

The expiration policy configuration is invalid.

Google Pub/Sub INVALID_DEAD_LETTER_POLICY

The dead letter policy configuration is invalid.

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The filter expression is too complex and exceeds the allowed complexity.

Google Pub/Sub The push endpoint did not respond within the timeout period.

The push endpoint is not responsive or is unable to handle incoming requests promptly.

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The push endpoint server is not handling requests correctly.

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The retry policy configuration is invalid.

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The filter expression for the subscription is invalid.

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The push endpoint URL is incorrect or the server is not running.

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The push endpoint URL is invalid or unreachable.

Google Pub/Sub PUSH_ENDPOINT_UNAUTHORIZED error when trying to send messages to a push endpoint.

The push endpoint does not authorize the Pub/Sub service to send messages.

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The subscription has too many unacknowledged bytes.

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The subscription has too many unacknowledged messages.

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The project has reached the maximum number of subscriptions allowed.

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The project has reached the maximum number of topics allowed.

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A subscription with the same name already exists in the project.

Google Pub/Sub INVALID_MESSAGE_FORMAT error encountered when publishing a message.

The message format is invalid or unsupported.

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A topic with the same name already exists in the Google Pub/Sub service.

Google Pub/Sub INVALID_SUBSCRIPTION_NAME error encountered when trying to create or manage a subscription.

The subscription name does not conform to the required format.

Google Pub/Sub INVALID_TOPIC_NAME error encountered when attempting to create or access a topic in Google Pub/Sub.

The topic name does not conform to the required format.

Google Pub/Sub Subscriber client is being throttled.

Flow control settings are too restrictive.

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The error code 'UNKNOWN' indicates an unspecified issue that could be due to various reasons such as network issues, service unavailability, or incorrect configurations.

Google Pub/Sub OUT_OF_RANGE error encountered during operation.

The operation was attempted past the valid range.

Google Pub/Sub Publisher client is being throttled.

Flow control settings are too restrictive.

Google Pub/Sub INVALID_ACK_ID error encountered when acknowledging messages in Google Pub/Sub.

The ack ID is invalid or does not exist.

Google Pub/Sub Duplicate acknowledgment ID error encountered.

The ack ID has already been acknowledged.

Google Pub/Sub ACK_DEADLINE_EXCEEDED

The message was not acknowledged within the configured ack deadline.

Google Pub/Sub TOPIC_DELETED error encountered when attempting to publish or subscribe to a topic.

The topic you are trying to access has been deleted.

Google Pub/Sub Subscription not found error when trying to access a Google Pub/Sub subscription.

The subscription has been deleted.

Google Pub/Sub The message exceeds the maximum allowed size.

The message payload is larger than the 10 MB limit set by Google Pub/Sub.

Google Pub/Sub Encountering the UNIMPLEMENTED error when using Google Pub/Sub.

The operation is not implemented or not supported.

Google Pub/Sub Operation rejected due to system state not meeting required preconditions.

The system is not in a state required for the operation's execution.

Google Pub/Sub RESOURCE_EXHAUSTED error encountered when using Google Pub/Sub.

The project has exceeded its quota for the requested resource.

Google Pub/Sub PERMISSION_DENIED error encountered when accessing Google Pub/Sub resources.

The client does not have permission to access the requested resource.

Google Pub/Sub Operation aborted due to concurrency issue

The operation was aborted, typically due to a concurrency issue.

Google Pub/Sub NOT_FOUND error when accessing a Google Pub/Sub resource.

The specified resource does not exist.

Google Pub/Sub DEADLINE_EXCEEDED error encountered during Google Pub/Sub operations.

The operation took too long to complete.

Google Pub/Sub Operation was cancelled unexpectedly.

The operation was cancelled, typically by the caller.

Google Pub/Sub The request contains an invalid argument.

The request parameters do not conform to the API specifications.

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