[IGNITE-18515] CDC: add documentation about metadata replication

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.15
• Component/s: documentation, extensions
• Labels: IEP-59 ise
• Ignite Flags: Docs Required
• Assignee: Ilya Shishkov
• Reporter: Ilya Shishkov
• Created: 10/Jan/23 09:31
• Updated: 22/Mar/23 12:58
• Resolved: 16/Jan/23 13:57

Description

Currently, CDC documentation [1, 2] has no information about binary types and mappings replication.

Particularly, features from a below list should be noticed:

1. For ordering guarantees CDC trough Kafka requires metadata topic with the only one partition.
2. Add properties description:
   1. IgniteToKafkaCdcStreamer#metadataTopic
   2. KafkaToIgniteCdcStreamerConfiguration#metadataTopic
   3. KafkaToIgniteCdcStreamerConfiguration#metadataConsumerGroup

Links:

1. https://ignite.apache.org/docs/latest/extensions-and-integrations/change-data-capture-extensions
2. https://ignite.apache.org/docs/latest/persistence/change-data-capture

Issue Links

• is related to: IGNITE-18992 CDC: Use single partition topic for metadata updates
• relates to: IGNITE-18209 Reduce binary metadata synchronization time for CDC through Kafka
• links to: GitHub Pull Request #10481