Struct raft_engine::Config

source · [−]

pub struct Config {
    pub dir: String,
    pub recovery_mode: RecoveryMode,
    pub recovery_read_block_size: ReadableSize,
    pub recovery_threads: usize,
    pub batch_compression_threshold: ReadableSize,
    pub bytes_per_sync: ReadableSize,
    pub target_file_size: ReadableSize,
    pub purge_threshold: ReadableSize,
    pub purge_rewrite_threshold: Option<ReadableSize>,
    pub purge_rewrite_garbage_ratio: f64,
    pub memory_limit: Option<ReadableSize>,
}

Fields

dir: String

Directory to store log files. Will create on startup if not exists.

Default: “”

recovery_mode: RecoveryMode

How to deal with file corruption during recovery.

Default: “tolerate-tail-corruption”.

recovery_read_block_size: ReadableSize

Minimum I/O size for reading log files during recovery.

Default: “4KB”. Minimum: “512B”.

recovery_threads: usize

The number of threads used to scan and recovery log files.

Default: 4. Minimum: 1.

batch_compression_threshold: ReadableSize

Compress a log batch if its size exceeds this value. Setting it to zero disables compression.

Default: “8KB”

bytes_per_sync: ReadableSize

Incrementally sync log files after specified bytes have been written. Setting it to zero disables incremental sync.

Default: “4MB”

target_file_size: ReadableSize

Target file size for rotating log files.

Default: “128MB”

purge_threshold: ReadableSize

Purge append log queue if its size exceeds this value.

Default: “10GB”

purge_rewrite_threshold: Option<ReadableSize>

Purge rewrite log queue if its size exceeds this value.

Default: MAX(purge_threshold / 10, target_file_size)

purge_rewrite_garbage_ratio: f64

Purge rewrite log queue if its garbage ratio exceeds this value.

Default: “0.6”

memory_limit: Option<ReadableSize>

Maximum memory bytes allowed for the in-memory index. Effective under the swap feature only.

Default: None

Implementations

impl Config

pub fn sanitize(&mut self) -> Result<()>

Trait Implementations

impl Clone for Config

fn clone(&self) -> Config

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

impl Debug for Config

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

Formats the value using the given formatter. Read more

impl Default for Config

fn default() -> Config

Returns the “default value” for a type. Read more

impl<'de> Deserialize<'de> for Config where
Config: Default,

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where
__D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

impl PartialEq<Config> for Config

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

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

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

This method tests for !=.

impl Serialize for Config

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where
S: Serializer,

Serialize this value into the given Serde serializer. Read more

impl StructuralPartialEq for Config

Auto Trait Implementations

impl RefUnwindSafe for Config

impl Send for Config

impl Sync for Config

impl Unpin for Config

impl UnwindSafe for Config

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn vzip(self) -> V

impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,