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WalIndexKey

krabka_remote_storage::diskless::index

Struct WalIndexKey 

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pub struct WalIndexKey {
    pub topic_id: Uuid,
    pub partition: i32,
    pub first_offset: i64,
}
Expand description

Compaction key for one logical range.

Every __diskless_wal_index key starts with a big-endian i16 key version. As in Kafka’s coordinator records, the key version names the record type the key and its value belong to, so a reader dispatches on it before it looks at anything else and a key type it does not know is refused instead of being decoded as another type.

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§topic_id: Uuid§partition: i32§first_offset: i64

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impl WalIndexKey

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pub const KEY_VERSION: i16 = 0

Key version of a range key, whose value is a WalFlushRecord.

Part of the 1.x on-disk contract: a 1.x broker reads every range key that any earlier 1.x broker wrote.

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pub fn to_bytes(self) -> Bytes

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pub fn from_bytes(bytes: &[u8]) -> Option<Self>

Decode a range key, or None when bytes are not one: another key version, or the wrong length.

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impl Clone for WalIndexKey

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fn clone(&self) -> WalIndexKey

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for WalIndexKey

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impl Debug for WalIndexKey

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

Formats the value using the given formatter. Read more
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impl Eq for WalIndexKey

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impl From<&WalIndexEntry> for WalIndexKey

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fn from(value: &WalIndexEntry) -> Self

Converts to this type from the input type.
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impl Hash for WalIndexKey

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
1.3.0 · Source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for WalIndexKey

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for WalIndexKey

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