Enum DrainBlockReason 

pub enum DrainBlockReason {
    NoSafeHandoffTarget,
    NoReplacementReplica,
}

Why a range could not be scheduled off the draining member. Surfaced rather than silently skipped, so an operator sees exactly which range is holding the drain open (and removal blocked).

Variants

NoSafeHandoffTarget

An owned range has no safe hand-off target — no replica is an active data member with catch-up evidence covering the commit watermark. Handing off to a node that has not caught up could lose committed writes.

NoReplacementReplica

A replicated range cannot shed the draining member’s copy without dropping below its replication factor, and no eligible member is free to host a replacement copy.

Trait Implementations

impl Clone for DrainBlockReason

fn clone(&self) -> DrainBlockReason

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for DrainBlockReason

impl Debug for DrainBlockReason

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

Formats the value using the given formatter.

impl Eq for DrainBlockReason

impl PartialEq for DrainBlockReason

fn eq(&self, other: &DrainBlockReason) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for DrainBlockReason