[jira] [Updated] (IGNITE-19102) CDC: Use manual assignment for consumer in KafkatoIgniteMetadataUpdater

["Vyacheslav Koptilin (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-19102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vyacheslav Koptilin updated IGNITE-19102:
-----------------------------------------
    Summary: CDC: Use manual assignment for consumer in KafkatoIgniteMetadataUpdater  (was: CDC: Use manual assignment for consumer in KafkatoIgniteMetadtaUpdater)

> CDC: Use manual assignment for consumer in KafkatoIgniteMetadataUpdater
> -----------------------------------------------------------------------
>
>                 Key: IGNITE-19102
>                 URL: https://issues.apache.org/jira/browse/IGNITE-19102
>             Project: Ignite
>          Issue Type: Task
>          Components: extensions
>            Reporter: Ilya Shishkov
>            Priority: Major
>              Labels: IEP-59, ise
>
> Currently, {{KafkaToIgniteMetadataUpdater}} uses {{KafkaConsumer#subscribe}}, which lead to utilization of the consumer group management [1, "Consumer Groups and Topic Subscriptions"].  Kafka group management has some possible side-effects, which can be reduced be manual assignment:
> # {{KafkaConsumer}} leaves consumer group after {{max.poll.interval.ms}} exceeds [2], because {{KafkaToIgniteMetadataUpdater}} polls data only on demand, not in continuous manner.
> # Delays during consumer group rebalancing.
> # Metadata topic should have single partition. Multiple consumers from the same group can not subscribe on the same partition.
> *Important:* {{KafkaConsumer}} in {{KafkaToIgniteMetadataUpdater}} must be subscribed / assigned to all partitions.
> Links:
> # https://kafka.apache.org/27/javadoc/org/apache/kafka/clients/consumer/KafkaConsumer.html
> # https://kafka.apache.org/27/documentation.html#consumerconfigs_max.poll.interval.ms



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