Enum goose::metrics::GooseCoordinatedOmissionMitigation [−][src]
pub enum GooseCoordinatedOmissionMitigation {
Average,
Maximum,
Minimum,
Disabled,
}
Expand description
THIS IS AN EXPERIMENTAL FEATURE, DISABLED BY DEFAULT. Optionally mitigate the loss of data (coordinated omission) due to stalls on the upstream server.
Stalling can happen for many reasons, for example: garbage collection, a cache stampede,
even unrelated load on the same server. Without any mitigation, Goose loses
statistically relevant information as GooseUser
threads are unable to make additional requests while they are blocked by an upstream stall.
Goose mitigates this by backfilling the requests that would have been made during that time.
Backfilled requests show up in the --request-file
if enabled, though they were not actually
sent to the server.
Goose can be configured to backfill requests based on the expected
user_cadence
. The expected
cadence can be automatically calculated with any of the following configuration options.
Variants
Backfill based on the average
user_cadence
for this
GooseUser
.
Backfill based on the maximum
user_cadence
for this
GooseUser
.
Backfill based on the minimum
user_cadence
for this
GooseUser
.
Completely disable coordinated omission mitigation (default).
Trait Implementations
fn 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
Allow --co-mitigation
from the command line using text variations on supported
GooseCoordinatedOmissionMitigation
s by implementing FromStr
.
fn set_default(
self,
key: GooseDefault,
value: GooseCoordinatedOmissionMitigation
) -> Result<Box<Self>, GooseError>
fn set_default(
self,
key: GooseDefault,
value: GooseCoordinatedOmissionMitigation
) -> Result<Box<Self>, GooseError>
Sets GooseDefault
to a GooseCoordinatedOmissionMitigation
value.
Auto Trait Implementations
impl Send for GooseCoordinatedOmissionMitigation
impl Sync for GooseCoordinatedOmissionMitigation
impl Unpin for GooseCoordinatedOmissionMitigation
Blanket Implementations
Mutably borrows from an owned value. Read more
Convert Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more
Compare self to key
and return true
if they are equal.
Instruments this type with the provided Span
, returning an
Instrumented
wrapper. Read more
type Output = T
type Output = T
Should always be Self