pub enum SystemConsumerStrategy {
DispatchToSingle,
RoundRobin,
Pinned,
PinnedByCorrelation,
Custom(String),
}
Expand description
System supported consumer strategies for use with persistent subscriptions.
Variants
DispatchToSingle
Distributes events to a single client until the bufferSize is reached. After which the next client is selected in a round robin style, and the process is repeated.
RoundRobin
Distributes events to all clients evenly. If the client buffer-size is reached the client is ignored until events are acknowledged/not acknowledged.
Pinned
For use with an indexing projection such as the system $by_category projection. Event Store inspects event for its source stream id, hashing the id to one of 1024 buckets assigned to individual clients. When a client disconnects it’s buckets are assigned to other clients. When a client connects, it is assigned some of the existing buckets. This naively attempts to maintain a balanced workload. The main aim of this strategy is to decrease the likelihood of concurrency and ordering issues while maintaining load balancing. This is not a guarantee, and you should handle the usual ordering and concurrency issues.
PinnedByCorrelation
Custom(String)
Trait Implementations
sourceimpl Clone for SystemConsumerStrategy
impl Clone for SystemConsumerStrategy
sourcefn clone(&self) -> SystemConsumerStrategy
fn clone(&self) -> SystemConsumerStrategy
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl Debug for SystemConsumerStrategy
impl Debug for SystemConsumerStrategy
sourceimpl<'de> Deserialize<'de> for SystemConsumerStrategy
impl<'de> Deserialize<'de> for SystemConsumerStrategy
sourcefn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
sourceimpl Display for SystemConsumerStrategy
impl Display for SystemConsumerStrategy
sourceimpl PartialEq<SystemConsumerStrategy> for SystemConsumerStrategy
impl PartialEq<SystemConsumerStrategy> for SystemConsumerStrategy
sourcefn eq(&self, other: &SystemConsumerStrategy) -> bool
fn eq(&self, other: &SystemConsumerStrategy) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
sourcefn ne(&self, other: &SystemConsumerStrategy) -> bool
fn ne(&self, other: &SystemConsumerStrategy) -> bool
This method tests for !=
.
sourceimpl Serialize for SystemConsumerStrategy
impl Serialize for SystemConsumerStrategy
impl Eq for SystemConsumerStrategy
impl StructuralEq for SystemConsumerStrategy
impl StructuralPartialEq for SystemConsumerStrategy
Auto Trait Implementations
impl RefUnwindSafe for SystemConsumerStrategy
impl Send for SystemConsumerStrategy
impl Sync for SystemConsumerStrategy
impl Unpin for SystemConsumerStrategy
impl UnwindSafe for SystemConsumerStrategy
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
sourcefn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to key
and return true
if they are equal.
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
sourcefn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
Wrap the input message T
in a tonic::Request
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
fn vzip(self) -> V
sourceimpl<T> WithSubscriber for T
impl<T> WithSubscriber for T
sourcefn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
sourcefn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more