Enum Error 

#[non_exhaustive]
pub enum Error {
    Storage(Error),
    Io(Error),
    JournalRecovery(RecoveryError),
    InvalidVersion(Option<FormatVersion>),
    Decompress(CompressionType),
    InvalidTrailer,
    InvalidTag((&'static str, u8)),
    Poisoned,
    KeyspaceDeleted,
    Locked,
    Unrecoverable,
}

Errors that may occur in the storage engine

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Storage(Error)

Error inside LSM-tree

Io(Error)

I/O error

JournalRecovery(RecoveryError)

Error during journal recovery

InvalidVersion(Option<FormatVersion>)

Invalid or unparsable data format version

Decompress(CompressionType)

Decompression failed

InvalidTrailer

Invalid journal trailer detected

InvalidTag((&'static str, u8))

Invalid tag detected during decoding

Poisoned

A previous flush / commit operation failed, indicating a hardware-related failure

Future writes will not be accepted as consistency cannot be guaranteed.

At this point, it’s best to let the application crash and try to recover.

More info: https://www.usenix.org/system/files/atc20-rebello.pdf

KeyspaceDeleted

Keyspace is deleted

Locked

Database is locked.

Unrecoverable

Database is unrecoverable, see logs for details

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 Error

fn from(inner: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(inner: Error) -> Self

Converts to this type from the input type.