Struct matterdb::DbOptions [−][src]
Options for the database.
These parameters apply to the underlying database, currently RocksDB
.
Fields (Non-exhaustive)
Struct {{ .. }}
syntax; cannot be matched against without a wildcard ..
; and struct update syntax will not work.max_open_files: Option<i32>
Number of open files that can be used by the database.
The underlying database opens multiple files during operation. If your system has a limit on the number of files which can be open simultaneously, you can adjust this option to match the limit. Note, that limiting the number of simultaneously open files might slow down the speed of database operation.
Defaults to None
, meaning that the number of open files is unlimited.
create_if_missing: bool
An option to indicate whether the system should create a database or not, if it’s missing.
This option applies to the cases when a node was switched off and is on again. If the database cannot be found at the indicated path and this option is switched on, a new database will be created at that path and blocks will be included therein.
Defaults to true
.
compression_type: CompressionType
An algorithm used for database compression.
Defaults to CompressionType::None
, meaning there is no compression.
max_total_wal_size: Option<u64>
Max total size of the WAL journal in bytes.
Defaults to None
, meaning that the size of WAL journal will be adjusted
by the rocksdb.
Implementations
impl DbOptions
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pub fn new(
max_open_files: Option<i32>,
create_if_missing: bool,
compression_type: CompressionType,
max_total_wal_size: Option<u64>
) -> Self
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max_open_files: Option<i32>,
create_if_missing: bool,
compression_type: CompressionType,
max_total_wal_size: Option<u64>
) -> Self
Creates a new DbOptions
object.
Trait Implementations
impl Clone for DbOptions
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impl Copy for DbOptions
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impl Debug for DbOptions
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impl Default for DbOptions
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impl<'de> Deserialize<'de> for DbOptions
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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
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__D: Deserializer<'de>,
impl PartialEq<DbOptions> for DbOptions
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impl Serialize for DbOptions
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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
__S: Serializer,
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__S: Serializer,
impl StructuralPartialEq for DbOptions
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Auto Trait Implementations
impl RefUnwindSafe for DbOptions
impl Send for DbOptions
impl Sync for DbOptions
impl Unpin for DbOptions
impl UnwindSafe for DbOptions
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,
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T: for<'de> Deserialize<'de>,
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> Pointable for T
pub const ALIGN: usize
type Init = T
The type for initializers.
pub unsafe fn init(init: <T as Pointable>::Init) -> usize
pub unsafe fn deref<'a>(ptr: usize) -> &'a T
pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T
pub unsafe fn drop(ptr: usize)
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,