Enum mz_adapter::coord::Message

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pub enum Message {

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    ControllerReady,
    PurifiedStatementReady(BackgroundWorkResult<PurifiedStatement>),
    CreateConnectionValidationReady(ValidationReady<CreateConnectionPlan>),
    AlterConnectionValidationReady(ValidationReady<Connection>),
    TryDeferred {
        conn_id: ConnectionId,
        acquired_lock: Option<(CatalogItemId, OwnedMutexGuard<()>)>,
    },
    GroupCommitInitiate(Span, Option<GroupCommitPermit>),
    DeferredStatementReady,
    AdvanceTimelines,
    ClusterEvent(ClusterEvent),
    CancelPendingPeeks {
        conn_id: ConnectionId,
    },
    LinearizeReads,
    StorageUsageSchedule,
    StorageUsageFetch,
    StorageUsageUpdate(ShardsUsageReferenced),
    StorageUsagePrune(Vec<BuiltinTableUpdate>),
    RetireExecute {
        data: ExecuteContextExtra,
        otel_ctx: OpenTelemetryContext,
        reason: StatementEndedExecutionReason,
    },
    ExecuteSingleStatementTransaction {
        ctx: ExecuteContext,
        otel_ctx: OpenTelemetryContext,
        stmt: Arc<Statement<Raw>>,
        params: Params,
    },
    PeekStageReady {
        ctx: ExecuteContext,
        span: Span,
        stage: PeekStage,
    },
    CreateIndexStageReady {
        ctx: ExecuteContext,
        span: Span,
        stage: CreateIndexStage,
    },
    CreateViewStageReady {
        ctx: ExecuteContext,
        span: Span,
        stage: CreateViewStage,
    },
    CreateMaterializedViewStageReady {
        ctx: ExecuteContext,
        span: Span,
        stage: CreateMaterializedViewStage,
    },
    SubscribeStageReady {
        ctx: ExecuteContext,
        span: Span,
        stage: SubscribeStage,
    },
    IntrospectionSubscribeStageReady {
        span: Span,
        stage: IntrospectionSubscribeStage,
    },
    SecretStageReady {
        ctx: ExecuteContext,
        span: Span,
        stage: SecretStage,
    },
    ClusterStageReady {
        ctx: ExecuteContext,
        span: Span,
        stage: ClusterStage,
    },
    ExplainTimestampStageReady {
        ctx: ExecuteContext,
        span: Span,
        stage: ExplainTimestampStage,
    },
    DrainStatementLog,
    PrivateLinkVpcEndpointEvents(Vec<VpcEndpointEvent>),
    CheckSchedulingPolicies,
    SchedulingDecisions(Vec<(&'static str, Vec<(ClusterId, SchedulingDecision)>)>),

}

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Command(OpenTelemetryContext, Command)

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ControllerReady

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PurifiedStatementReady(BackgroundWorkResult<PurifiedStatement>)

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CreateConnectionValidationReady(ValidationReady<CreateConnectionPlan>)

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AlterConnectionValidationReady(ValidationReady<Connection>)

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TryDeferred

Fields

§conn_id: ConnectionId

The connection that created this op.

§acquired_lock: Option<(CatalogItemId, OwnedMutexGuard<()>)>

The write lock that notified us our deferred op might be able to run.

Note: While we never want to hold a partial set of locks, it can be important to hold onto the one that notified us our op might be ready. If there are multiple operations waiting on a single collection, and we don’t hold this lock through retyring the op, then everything waiting on this collection will get retried causing traffic in the Coordinator’s message queue.

See DeferredWriteOp::can_be_optimistically_retried for more detail.

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GroupCommitInitiate(Span, Option<GroupCommitPermit>)

Initiates a group commit.

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DeferredStatementReady

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AdvanceTimelines

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ClusterEvent(ClusterEvent)

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CancelPendingPeeks

Fields

§conn_id: ConnectionId
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LinearizeReads

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StorageUsageSchedule

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StorageUsageFetch

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StorageUsageUpdate(ShardsUsageReferenced)

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StorageUsagePrune(Vec<BuiltinTableUpdate>)

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RetireExecute

Performs any cleanup and logging actions necessary for finalizing a statement execution.

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ExecuteSingleStatementTransaction

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PeekStageReady

Fields

§ctx: ExecuteContext
§span: Span
§stage: PeekStage
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CreateIndexStageReady

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CreateViewStageReady

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CreateMaterializedViewStageReady

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SubscribeStageReady

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IntrospectionSubscribeStageReady

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SecretStageReady

Fields

§ctx: ExecuteContext
§span: Span
§stage: SecretStage
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ClusterStageReady

Fields

§ctx: ExecuteContext
§span: Span
§stage: ClusterStage
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ExplainTimestampStageReady

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DrainStatementLog

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PrivateLinkVpcEndpointEvents(Vec<VpcEndpointEvent>)

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CheckSchedulingPolicies

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SchedulingDecisions(Vec<(&'static str, Vec<(ClusterId, SchedulingDecision)>)>)

Scheduling policy decisions about turning clusters On/Off. Vec<(policy name, Vec of decisions by the policy)> A cluster will be On if and only if there is at least one On decision for it. Scheduling decisions for clusters that have SCHEDULE = MANUAL are ignored.

Implementations§

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impl Message

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pub const fn kind(&self) -> &'static str

Returns a string to identify the kind of Message, useful for logging.

Trait Implementations§

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impl Debug for Message

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

Formats the value using the given formatter. Read more

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