Enum ShardManagerError 

pub enum ShardManagerError {
    UnknownNode(String),
    NodeAlreadyExists(String),
    NoShards,
    NoNodes,
}

Errors raised by ShardManager.

Variants

UnknownNode(String)

Tried to remove a node that is not registered.

NodeAlreadyExists(String)

Tried to add a node that is already registered.

NoShards

n_shards was zero, which is rejected to avoid degenerate plans.

NoNodes

All nodes were removed, leaving the cluster with no owners.

Trait Implementations

impl Debug for ShardManagerError

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

Formats the value using the given formatter.

impl Display for ShardManagerError

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

Formats the value using the given formatter.

impl Error for ShardManagerError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<ShardManagerError> for CoordinatorError

fn from(source: ShardManagerError) -> Self

Converts to this type from the input type.