Struct SstableInfo 

pub struct SstableInfo {

    pub object_id: HummockSstableObjectId,
    pub sst_id: HummockSstableId,
    pub key_range: Option<KeyRange>,
    pub file_size: u64,
    pub table_ids: Vec<TableId>,
    pub meta_offset: u64,
    pub stale_key_count: u64,
    pub total_key_count: u64,
    pub min_epoch: u64,
    pub max_epoch: u64,
    pub uncompressed_file_size: u64,
    pub range_tombstone_count: u64,
    pub bloom_filter_kind: i32,
    pub sst_size: u64,
    pub vnode_statistics: Option<VnodeStatistics>,
    pub filter_type: Option<i32>,
    pub filter_layout: Option<i32>,
}

Fields

object_id: HummockSstableObjectId

sst_id: HummockSstableId

key_range: Option<KeyRange>

file_size: u64

represents the physical object size, which is usually used in the builder.

table_ids: Vec<TableId>

meta_offset: u64

stale_key_count: u64

total_key_count: u64

min_epoch: u64

max_epoch: u64

uncompressed_file_size: u64

range_tombstone_count: u64

bloom_filter_kind: i32

👎Deprecated

Legacy SST filter metadata for SSTs written before filter_type and filter_layout existed. New writers must leave this field as BLOOM_FILTER_UNSPECIFIED and set filter_type instead.

sst_size: u64

In order to calculate more finely in the compaction strategy, we need to re-calculate the sst_size after split sst sst_size represents the size of the sst instead of the object size(usually used in the meta).

vnode_statistics: Option<VnodeStatistics>

Optional per-vnode statistics for query pruning when the SST spans only a small set of vnodes. Only emitted when SST contains multiple vnodes to avoid redundancy with key_range.

filter_type: Option<i32>

Canonical SST filter type for newly written SSTs. If this field is present, bloom_filter_kind must be BLOOM_FILTER_UNSPECIFIED.

filter_layout: Option<i32>

Canonical SST filter physical layout for newly written SSTs. This is set only when filter_type is not SSTABLE_FILTER_NONE.

Implementations

impl SstableInfo

pub fn bloom_filter_kind(&self) -> BloomFilterType

Returns the enum value of bloom_filter_kind, or the default if the field is set to an invalid enum value.

pub fn set_bloom_filter_kind(&mut self, value: BloomFilterType)

Sets bloom_filter_kind to the provided enum value.

pub fn filter_type(&self) -> SstableFilterType

Returns the enum value of filter_type, or the default if the field is unset or set to an invalid enum value.

pub fn set_filter_type(&mut self, value: SstableFilterType)

Sets filter_type to the provided enum value.

pub fn filter_layout(&self) -> SstableFilterLayout

Returns the enum value of filter_layout, or the default if the field is unset or set to an invalid enum value.

pub fn set_filter_layout(&mut self, value: SstableFilterLayout)

Sets filter_layout to the provided enum value.

impl SstableInfo

pub fn get_object_id(&self) -> HummockSstableObjectId

pub fn get_sst_id(&self) -> HummockSstableId

pub fn get_key_range(&self) -> Result<&KeyRange, PbFieldNotFound>

pub fn get_file_size(&self) -> u64

pub fn get_table_ids(&self) -> &Vec<TableId>

pub fn get_meta_offset(&self) -> u64

pub fn get_stale_key_count(&self) -> u64

pub fn get_total_key_count(&self) -> u64

pub fn get_min_epoch(&self) -> u64

pub fn get_max_epoch(&self) -> u64

pub fn get_uncompressed_file_size(&self) -> u64

pub fn get_range_tombstone_count(&self) -> u64

pub fn get_bloom_filter_kind(&self) -> Result<BloomFilterType, PbFieldNotFound>

👎Deprecated

pub fn get_sst_size(&self) -> u64

pub fn get_vnode_statistics(&self) -> Result<&VnodeStatistics, PbFieldNotFound>

pub fn get_filter_type(&self) -> Result<&i32, PbFieldNotFound>

pub fn get_filter_layout(&self) -> Result<&i32, PbFieldNotFound>

Trait Implementations

impl Clone for SstableInfo

fn clone(&self) -> SstableInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SstableInfo

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

Formats the value using the given formatter.

impl Default for SstableInfo

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SstableInfo

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Message for SstableInfo

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for SstableInfo

fn eq(&self, other: &SstableInfo) -> 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 Serialize for SstableInfo

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

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for SstableInfo