UpgradeRegion

common_meta::instruction

Struct UpgradeRegion 

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pub struct UpgradeRegion {
    pub region_id: RegionId,
    pub last_entry_id: Option<u64>,
    pub metadata_last_entry_id: Option<u64>,
    pub replay_timeout: Duration,
    pub location_id: Option<u64>,
    pub replay_entry_id: Option<u64>,
    pub metadata_replay_entry_id: Option<u64>,
}
Expand description

Upgrades a follower region to leader region.

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§region_id: RegionId

The [RegionId].

§last_entry_id: Option<u64>

The last_entry_id of old leader region.

§metadata_last_entry_id: Option<u64>

The last_entry_id of old leader metadata region (Only used for metric engine).

§replay_timeout: Duration

The timeout of waiting for a wal replay.

None stands for no wait, it’s helpful to verify whether the leader region is ready.

§location_id: Option<u64>

The hint for replaying memtable.

§replay_entry_id: Option<u64>§metadata_replay_entry_id: Option<u64>

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impl UpgradeRegion

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pub fn with_replay_entry_id(self, replay_entry_id: Option<u64>) -> Self

Sets the replay entry id.

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pub fn with_metadata_replay_entry_id( self, metadata_replay_entry_id: Option<u64>, ) -> Self

Sets the metadata replay entry id.

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impl Clone for UpgradeRegion

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fn clone(&self) -> UpgradeRegion

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for UpgradeRegion

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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 Default for UpgradeRegion

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fn default() -> UpgradeRegion

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for UpgradeRegion

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

Deserialize this value from the given Serde deserializer. Read more
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impl PartialEq for UpgradeRegion

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for UpgradeRegion

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

Serialize this value into the given Serde serializer. Read more
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impl Eq for UpgradeRegion

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impl StructuralPartialEq for UpgradeRegion

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