limits

Hot Reloadable

Each key is enforced when the stream or consumer it applies to is created or updated, so an already-existing asset keeps the value that applied when it was made — see the individual keys below for exceptions.

Default cross-account JetStream limits.

Properties

Name	Description	Type	Default	Reloadable
batch	Ceilings on atomic batch publishing.	object	-	Yes*
max_ack_pending	Defines the maximum number of in-flight messages allowed to be configured on consumers.	integer	-	Yes*
max_ha_assets	The maximum number of JetStream assets that can exist at any given time having more than one replica.	integer	-	No
max_request_batch	The maximum request batch size allowed to be configured on pull consumers.	integer	-	Yes*
duplicate_window	The maximum duplication window period allowed to be configured on a stream.	duration	-	Yes*
default_max_consumers	The default maximum number of consumers allowed on a stream that does not set its own max_consumers, and whose account has no consumer limit either. Set to -1 to disable this default and allow an unlimited number of consumers, matching pre-2.15 behavior.	integer	1000	Yes*

* See the property page for reload caveats.