Enum raft::ReadOnlyOption

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pub enum ReadOnlyOption {
    Safe,
    LeaseBased,
}

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Determines the relative safety of and consistency of read only requests.

Variants

Safe

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Safe guarantees the linearizability of the read only request by communicating with the quorum. It is the default and suggested option.

LeaseBased

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LeaseBased ensures linearizability of the read only request by relying on the leader lease. It can be affected by clock drift. If the clock drift is unbounded, leader might keep the lease longer than it should (clock can move backward/pause without any bound). ReadIndex is not safe in that case.

Trait Implementations

impl Clone for ReadOnlyOption[+]

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fn clone(&self) -> ReadOnlyOption[−]

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Copy for ReadOnlyOption

impl Debug for ReadOnlyOption[+]

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

Formats the value using the given formatter.

impl Default for ReadOnlyOption[+]

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fn default() -> ReadOnlyOption[−]

Returns the “default value” for a type.

impl PartialEq<ReadOnlyOption> for ReadOnlyOption[+]

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fn eq(&self, other: &ReadOnlyOption) -> bool[−]

This method tests for self and other values to be equal, and is used by ==.

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#[must_use]pub fn ne(&self, other: &Rhs) -> bool[−]

This method tests for !=.

impl StructuralPartialEq for ReadOnlyOption