Enum MemtableError 

pub enum MemtableError {
    Frozen,
    CapacityExceeded {
        current: usize,
        limit: usize,
    },
    Schema(SchemaError),
    ShardOutOfRange {
        timestamp: i64,
        earliest: i64,
        latest: i64,
        tolerance: i64,
        shard_secs: u64,
    },
    NoSuchShard(i64),
    Io(Error),
    Segment(SegmentError),
    Flush(String),
    NoFrozenMemtable,
    Wal(WalError),
}

Errors that can occur during memtable operations.

Variants

Frozen

The memtable is frozen and cannot accept new writes.

CapacityExceeded

Memory capacity exceeded — the memtable has reached its size limit.

Fields

current: usize

Current memory usage in bytes.

limit: usize

Configured memory limit in bytes.

Schema(SchemaError)

A schema violation was detected during insert.

ShardOutOfRange

The timestamp is outside the allowed out-of-order tolerance.

The message names timestamps, because shard identifiers are an internal quotient nobody can act on: a Telegraf agent that buffered for an hour was told write to shard 496833 rejected: outside tolerance window [496836..=496840], which says neither how late the point was nor what to do about it. It also names the way out, because there is one — importing history is backfill, and every network write path exposes it.

Fields

timestamp: i64

The rejected timestamp, in epoch nanoseconds.

earliest: i64

Oldest timestamp the window admits, in epoch nanoseconds.

latest: i64

Newest timestamp the window admits, in epoch nanoseconds.

tolerance: i64

Configured ooo_shard_tolerance.

shard_secs: u64

Configured shard_duration, in seconds.

NoSuchShard(i64)

A flush was asked for a shard the router does not hold.

Its own variant: this was reported as ShardOutOfRange with a target shard and a [0..=0] window, which is a different fact stated with made-up numbers.

Io(Error)

An I/O error occurred during flush.

Segment(SegmentError)

A segment write error occurred during flush.

Flush(String)

Registering a flushed segment failed; the memtable stays frozen.

NoFrozenMemtable

No frozen memtable is available for flushing.

Wal(WalError)

A WAL error occurred during truncation.

Trait Implementations

impl Debug for MemtableError

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

Formats the value using the given formatter.

impl Display for MemtableError

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

Formats the value using the given formatter.

impl Error for MemtableError

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<Error> for MemtableError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<SchemaError> for MemtableError

fn from(source: SchemaError) -> Self

Converts to this type from the input type.

impl From<SegmentError> for MemtableError

fn from(source: SegmentError) -> Self

Converts to this type from the input type.

impl From<WalError> for MemtableError

fn from(source: WalError) -> Self

Converts to this type from the input type.