Struct Metrics

#[non_exhaustive]
pub struct Metrics {
    pub connection_count: AtomicUsize,
    pub connections_in_pool: AtomicUsize,
    pub active_wait_requests: AtomicUsize,
    pub create_failed: AtomicUsize,
    pub discarded_superfluous_connection: AtomicUsize,
    pub discarded_unestablished_connection: AtomicUsize,
    pub dirty_connection_return: AtomicUsize,
    pub discarded_expired_connection: AtomicUsize,
    pub resetting_connection: AtomicUsize,
    pub discarded_error_during_cleanup: AtomicUsize,
    pub connection_returned_to_pool: AtomicUsize,
}

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

connection_count: AtomicUsize

Guage of active connections to the database server, this includes both connections that have belong to the pool, and connections currently owned by the application.

connections_in_pool: AtomicUsize

Guage of active connections that currently belong to the pool.

active_wait_requests: AtomicUsize

Guage of GetConn requests that are currently active.

create_failed: AtomicUsize

Counter of connections that failed to be created.

discarded_superfluous_connection: AtomicUsize

Counter of connections discarded due to pool constraints.

discarded_unestablished_connection: AtomicUsize

Counter of connections discarded due to being closed upon return to the pool.

dirty_connection_return: AtomicUsize

Counter of connections that have been returned to the pool dirty that needed to be cleaned (ie. open transactions, pending queries, etc).

discarded_expired_connection: AtomicUsize

Counter of connections that have been discarded as they were expired by the pool constraints.

resetting_connection: AtomicUsize

Counter of connections that have been reset.

discarded_error_during_cleanup: AtomicUsize

Counter of connections that have been discarded as they returned an error during cleanup.

connection_returned_to_pool: AtomicUsize

Counter of connections that have been returned to the pool.

Trait Implementations

impl Debug for Metrics

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Metrics

fn default() -> Metrics

Returns the “default value” for a type.

impl Serialize for Metrics

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.