Quotas and limits

Yandex Message Queue has the following limits:

• Quotas are organizational restrictions that can be changed by technical support on request.
• Limits are technical restrictions due to the Yandex.Cloud architecture specifics. The limits cannot be changed.

Quotas

Messages

Type of limit	Value
Number of SendMessage and SendMessageBatch calls per queue	300 calls per second for standard queues 30 calls per second for FIFO queues
Number of ReceiveMessage calls per queue	300 calls per second for standard queues 30 calls per second for FIFO queues
Number of DeleteMessage and DeleteMessageBatch calls per queue	300 calls per second for standard queues 30 calls per second for FIFO queues
Number of ChangeMessageVisibility and ChangeMessageVisibilityBatch calls per queue	300 calls per second for standard queues 30 calls per second for FIFO queues
Number of CreateQueue calls per cloud	2 calls per second
Number of DeleteQueue calls per cloud	5 calls per second
Number of other request calls per cloud	100 calls per second
Number of queues per cloud	10

Limits

Queues

Type of limit	Value
Minimum message enqueue delay (DelaySeconds parameter)	0 seconds
Maximum message enqueue delay (DelaySeconds parameter)	900 seconds (15 minutes)
Number of messages being processed per standard queue	120,000
Number of messages being processed per FIFO queue	20,000
Queue name	Maximum of 80 characters, including numbers, small and capital Latin letters, hyphens, and underscores. The name of a FIFO queue must end with the .fifo suffix.

Messages

Type of limit	Value
Batch entry ID	Maximum of 80 characters, including numbers, small and capital Latin letters, hyphens, and underscores.
Maximum number of message attributes	10
Maximum number of entries per batch	10
Message content	XML, JSON, and unformatted text. The following Unicode characters are supported: #x9 #xA #xD from #x20 to #xD7FF from #xE000 to #xFFFD from #x10000 to #x10FFFF
Maximum period for retaining messages in a queue	1209600 seconds (14 days)
Minimum period for retaining messages in a queue	60 seconds (1 minute)
Maximum message enqueue delay (DelaySeconds parameter)	900 seconds (15 minutes)
Minimum message enqueue delay (DelaySeconds parameter)	0 seconds
Maximum message size	262144 bytes (256 KB)
Minimum message size	1 byte
Maximum message visibility timeout	12 hours
Minimum message visibility timeout	0 seconds
Maximum clients waiting time to wait for the message from an empty queue (WaitTimeSeconds parameter)	20 seconds