Copyright | (c) 2013-2018 Brendan Hay |
---|---|
License | Mozilla Public License, v. 2.0. |
Maintainer | Brendan Hay <brendan.g.hay+amazonka@gmail.com> |
Stability | auto-generated |
Portability | non-portable (GHC extensions) |
Safe Haskell | None |
Language | Haskell2010 |
Changes the visibility timeout of a specified message in a queue to a new value. The maximum allowed timeout value is 12 hours. Thus, you can't extend the timeout of a message in an existing queue to more than a total visibility timeout of 12 hours. For more information, see Visibility Timeout in the Amazon Simple Queue Service Developer Guide .
For example, you have a message with a visibility timeout of 5 minutes. After 3 minutes, you call ChangeMessageVisiblity
with a timeout of 10 minutes. At that time, the timeout for the message is extended by 10 minutes beyond the time of the ChangeMessageVisibility
action. This results in a total visibility timeout of 13 minutes. You can continue to call the ChangeMessageVisibility
to extend the visibility timeout to a maximum of 12 hours. If you try to extend the visibility timeout beyond 12 hours, your request is rejected.
A message is considered to be in flight after it's received from a queue by a consumer, but not yet deleted from the queue.
For standard queues, there can be a maximum of 120,000 inflight messages per queue. If you reach this limit, Amazon SQS returns the OverLimit
error message. To avoid reaching the limit, you should delete messages from the queue after they're processed. You can also increase the number of queues you use to process your messages.
For FIFO queues, there can be a maximum of 20,000 inflight messages per queue. If you reach this limit, Amazon SQS returns no error messages.
Important: If you attempt to set the VisibilityTimeout
to a value greater than the maximum time left, Amazon SQS returns an error. Amazon SQS doesn't automatically recalculate and increase the timeout to the maximum remaining time.
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. If you don't delete a message after it is received, the visibility timeout for the message reverts to the original timeout value (not to the value you set using the ChangeMessageVisibility
action) the next time the message is received.
Synopsis
- changeMessageVisibility :: Text -> Text -> Int -> ChangeMessageVisibility
- data ChangeMessageVisibility
- cmvQueueURL :: Lens' ChangeMessageVisibility Text
- cmvReceiptHandle :: Lens' ChangeMessageVisibility Text
- cmvVisibilityTimeout :: Lens' ChangeMessageVisibility Int
- changeMessageVisibilityResponse :: ChangeMessageVisibilityResponse
- data ChangeMessageVisibilityResponse
Creating a Request
changeMessageVisibility Source #
Creates a value of ChangeMessageVisibility
with the minimum fields required to make a request.
Use one of the following lenses to modify other fields as desired:
cmvQueueURL
- The URL of the Amazon SQS queue whose message's visibility is changed. Queue URLs are case-sensitive.cmvReceiptHandle
- The receipt handle associated with the message whose visibility timeout is changed. This parameter is returned by the
action.ReceiveMessage
cmvVisibilityTimeout
- The new value for the message's visibility timeout (in seconds). Values values:0
to43200
. Maximum: 12 hours.
data ChangeMessageVisibility Source #
See: changeMessageVisibility
smart constructor.
Instances
Request Lenses
cmvQueueURL :: Lens' ChangeMessageVisibility Text Source #
The URL of the Amazon SQS queue whose message's visibility is changed. Queue URLs are case-sensitive.
cmvReceiptHandle :: Lens' ChangeMessageVisibility Text Source #
The receipt handle associated with the message whose visibility timeout is changed. This parameter is returned by the
action.ReceiveMessage
cmvVisibilityTimeout :: Lens' ChangeMessageVisibility Int Source #
The new value for the message's visibility timeout (in seconds). Values values: 0
to 43200
. Maximum: 12 hours.
Destructuring the Response
changeMessageVisibilityResponse :: ChangeMessageVisibilityResponse Source #
Creates a value of ChangeMessageVisibilityResponse
with the minimum fields required to make a request.
data ChangeMessageVisibilityResponse Source #
See: changeMessageVisibilityResponse
smart constructor.