process parition specific data

[leenaKhilnani18]

Is the key field same as the partition number? if not how i can I specify for consumer to read only specific partition data for ApacheKafkaConsumer step(version 1.7)

[spektom]

Key in Kafka used for spreading messages over different partitions. "In Kafka producer, a partition key can be specified to indicate the destination partition of the message. By default, a hashing-based partitioner is used to determine the partition id given the key, and people can use customized partitioners also." ( https://cwiki.apache.org/confluence/display/KAFKA/FAQ). You can build your logic of reading from a particular partition based on key value combined with custom partitioner ( https://howtoprogram.xyz/2016/06/04/write-apache-kafka-custom-partitioner/)

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On Thu, Jun 21, 2018 at 11:51 PM leenaKhilnani18 ***@***.***> wrote: Is the key field same as the partition number? if not how i can I specify for consumer to read only specific partition data for ApacheKafkaConsumer step(version 1.7) — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#30>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAJpO2VjjCxh4V78V65oSRvoZbgle3lZks5t_AdFgaJpZM4UyvzB> .