![]() Unlike with a queue, when you change the visibility timeout for a specific message the timeout value is applied immediately but isn't saved in memory for that message. Amazon SQS doesn't automatically recalculate and increase the timeout to the maximum remaining time. If you attempt to set the VisibilityTimeout to a value greater than the maximum time left, Amazon SQS returns an error. If you reach this limit, Amazon SQS returns no error messages. You can also increase the number of queues you use to process your messages.įor FIFO queues, there can be a maximum of 20,000 inflight messages per queue. To avoid reaching the limit, you should delete messages from the queue after they're processed. If you reach this limit, Amazon SQS returns the OverLimit error message. If you try to extend the visibility timeout beyond 12 hours, your request is rejected.Ī message is considered to be in flight after it's received from a queue by a consumer, but not yet deleted from the queue.įor standard queues, there can be a maximum of 120,000 inflight messages per queue. You can continue to call ChangeMessageVisibility to extend the visibility timeout to a maximum of 12 hours. After 3 minutes, you call ChangeMessageVisibility with a timeout of 10 minutes. For more information, see Visibility Timeout in the Amazon Simple Queue Service Developer Guide.įor example, you have a message with a visibility timeout of 5 minutes. The maximum allowed timeout value is 12 hours. \nQueue URLs and names are case-sensitive."Ĭhanges the visibility timeout of a specified message in a queue to a new value. "QueueUrl" : "The URL of the Amazon SQS queue to which permissions are added. Allowed characters include alphanumeric characters, hyphens (-), and underscores (_)." , "Label" : "The unique identification of the permission you're setting (for example, AliceSendMessage). For more information, see see Grant Cross-Account Permissions to a Role and a User Name in the Amazon Simple Queue Service Developer Guide. For example, a parameter list with two elements looks like this:Ĭross-account permissions don't apply to this action. Values of n are integers starting from 1. These lists are specified using the param.n notation. For more information about writing your own policy, see Using Custom Policies with the Amazon SQS Access Policy Language in the Amazon Simple Queue Service Developer Guide.Īn Amazon SQS policy can have a maximum of 7 actions. If you want to write your own policy, use SetQueueAttributes to upload your policy. For more information about these permissions, see Allow Developers to Write Messages to a Shared Queue in the Amazon Simple Queue Service Developer Guide.ĪddPermission writes an Amazon-SQS-generated policy. Only you, the owner of the queue, can grant or deny permissions to the queue. When you create a queue, you have full control access rights for the queue. Adds a permission to a queue for a specific principal. ![]()
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