Struct googapis::google::cloud::tasks::v2beta2::RateLimits [−][src]
pub struct RateLimits {
pub max_tasks_dispatched_per_second: f64,
pub max_burst_size: i32,
pub max_concurrent_tasks: i32,
}
Expand description
Rate limits.
This message determines the maximum rate that tasks can be dispatched by a queue, regardless of whether the dispatch is a first task attempt or a retry.
Note: The debugging command, [RunTask][google.cloud.tasks.v2beta2.CloudTasks.RunTask], will run a task even if the queue has reached its [RateLimits][google.cloud.tasks.v2beta2.RateLimits].
Fields
max_tasks_dispatched_per_second: f64
The maximum rate at which tasks are dispatched from this queue.
If unspecified when the queue is created, Cloud Tasks will pick the default.
- For [App Engine queues][google.cloud.tasks.v2beta2.AppEngineHttpTarget], the maximum allowed value is 500.
- This field is output only for [pull queues][google.cloud.tasks.v2beta2.PullTarget]. In addition to the
max_tasks_dispatched_per_second
limit, a maximum of 10 QPS of [LeaseTasks][google.cloud.tasks.v2beta2.CloudTasks.LeaseTasks] requests are allowed per pull queue.
This field has the same meaning as rate in queue.yaml/xml.
max_burst_size: i32
The max burst size.
Max burst size limits how fast tasks in queue are processed when many tasks are in the queue and the rate is high. This field allows the queue to have a high rate so processing starts shortly after a task is enqueued, but still limits resource usage when many tasks are enqueued in a short period of time.
The token bucket
algorithm is used to control the rate of task dispatches. Each
queue has a token bucket that holds tokens, up to the maximum
specified by max_burst_size
. Each time a task is dispatched, a
token is removed from the bucket. Tasks will be dispatched until
the queue’s bucket runs out of tokens. The bucket will be
continuously refilled with new tokens based on
[max_dispatches_per_second][RateLimits.max_dispatches_per_second].
The default value of max_burst_size
is picked by Cloud Tasks
based on the value of
[max_dispatches_per_second][RateLimits.max_dispatches_per_second].
The maximum value of max_burst_size
is 500.
For App Engine queues that were created or updated using
queue.yaml/xml
, max_burst_size
is equal to
[bucket_size](https://cloud.google.com/appengine/docs/standard/python/config/queueref#bucket_size).
If
[UpdateQueue][google.cloud.tasks.v2beta2.CloudTasks.UpdateQueue] is called on a queue without
explicitly setting a value for max_burst_size
,
max_burst_size
value will get updated if
[UpdateQueue][google.cloud.tasks.v2beta2.CloudTasks.UpdateQueue] is updating
[max_dispatches_per_second][RateLimits.max_dispatches_per_second].
max_concurrent_tasks: i32
The maximum number of concurrent tasks that Cloud Tasks allows to be dispatched for this queue. After this threshold has been reached, Cloud Tasks stops dispatching tasks until the number of concurrent requests decreases.
If unspecified when the queue is created, Cloud Tasks will pick the default.
The maximum allowed value is 5,000.
This field is output only for
[pull queues][google.cloud.tasks.v2beta2.PullTarget] and always -1, which indicates no limit. No other
queue types can have max_concurrent_tasks
set to -1.
This field has the same meaning as max_concurrent_requests in queue.yaml/xml.
Trait Implementations
fn merge_field<B>(
&mut self,
tag: u32,
wire_type: WireType,
buf: &mut B,
ctx: DecodeContext
) -> Result<(), DecodeError> where
B: Buf,
Returns the encoded length of the message without a length delimiter.
Encodes the message to a buffer. Read more
Encodes the message to a newly allocated buffer.
Encodes the message with a length-delimiter to a buffer. Read more
Encodes the message with a length-delimiter to a newly allocated buffer.
Decodes an instance of the message from a buffer. Read more
fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError> where
Self: Default,
B: Buf,
fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError> where
Self: Default,
B: Buf,
Decodes a length-delimited instance of the message from the buffer.
Decodes an instance of the message from a buffer, and merges it into self
. Read more
Decodes a length-delimited instance of the message from buffer, and
merges it into self
. Read more
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
Auto Trait Implementations
impl RefUnwindSafe for RateLimits
impl Send for RateLimits
impl Sync for RateLimits
impl Unpin for RateLimits
impl UnwindSafe for RateLimits
Blanket Implementations
Mutably borrows from an owned value. Read more
Wrap the input message T
in a tonic::Request
pub fn vzip(self) -> V
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more