OCI Database Migration
Managed online or offline migration jobs into Oracle Cloud databases.
| property | type | values | required | kind default | this component |
|---|---|---|---|---|---|
| accelerator | enum | none | gpu | asic | no | none | inherited |
| automaticDataPumpTuning | boolean | — | no | true | inherited |
| concurrency | integer | — | no | — | inherited |
| fanoutStrategy | enum | none | push | pull | hybrid | no | none | inherited |
| fanoutThreshold | integer | — | no | — | inherited |
| goldenGateHub | boolean | — | no | false | inherited |
| idempotent | boolean | — | no | false | inherited |
| initialLoadMethod | enum | data-pump-via-object-storage | data-pump-direct | no | — | inherited |
| instances | integer | — | no | — | inherited |
| managed | boolean | — | no | false | ▸ true |
| migrationType | enum | online-logical | offline-logical | no | — | inherited |
| rateControl | enum | none | fixed | aimd | no | none | inherited |
| schedule | string | — | no | — | inherited |
| trigger | enum | queue | stream | schedule | batch | manual | yes | — | ▸ manual |
Every rule whose selector covers this component's kind or its category. Whether a rule fires depends on the design: its properties, its edges and its groups.
Pure push fan-out over a social graph is brutal at the tail: one post from an account with millions of followers becomes millions of cache writes. A follower threshold above which readers merge at read time bounds that write amplification.
- — all of these hold:
- — the node's `fanoutStrategy` is "push"
- — the node's `fanoutThreshold` has no value
- — the design contains a node of kind graph-database
One worker pool consuming several queues lets a slow or poisoned queue starve the others. That is precisely what the design's per-queue isolation requirement forbids.
- — all of these hold:
- — the node has more than 1 incoming edge from a queue
- — the design requirement `isolation.perQueue` is true
A stateful compute node pinned to exactly one availability zone disappears with that zone, and its state goes with it. Nodes inside a cell are exempt, because there the cell is deliberately single-zone and redundancy comes from the other cells.
- — all of these hold:
- — the node's `stateless` is false
- — the node sits inside exactly 1 availability-zone group
- — this does not hold:
- — the node sits inside at least one cell group
nodes:
- { id: "database-migration", component: "oci-database-migration" }# yaml-language-server: $schema=../../schema/component.schema.json # OCI Database Migration: fully managed, self-service migration jobs driven by Zero Downtime # Migration. "Using Oracle Cloud Infrastructure Database Migration Service": ONLINE_LOGICAL uses a # GoldenGate hub for continuous replication, OFFLINE_LOGICAL is a one-off Data Pump transfer; the # service sets optimal Data Pump parameters itself. A migration is started per job, not scheduled. schemaVersion: "1" type: "component" id: "oci-database-migration" kind: "worker" provider: "oci" docs: "https://docs.oracle.com/en-us/iaas/database-migration/doc/overview-oracle-cloud-infrastructure-database-migration.html" defaults: managed: true trigger: "manual" properties: migrationType: type: "enum" values: ["online-logical", "offline-logical"] initialLoadMethod: type: "enum" values: ["data-pump-via-object-storage", "data-pump-direct"] goldenGateHub: type: "boolean" default: false automaticDataPumpTuning: type: "boolean" default: true