[jira] [Created] (KAFKA-2076) Add an API to new consumer to allow user get high watermark of partitions.

["Jiangjie Qin (JIRA)" <ji...@apache.org>]

Jiangjie Qin created KAFKA-2076:
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             Summary: Add an API to new consumer to allow user get high watermark of partitions.
                 Key: KAFKA-2076
                 URL: https://issues.apache.org/jira/browse/KAFKA-2076
             Project: Kafka
          Issue Type: Improvement
            Reporter: Jiangjie Qin


We have a use case that user wants to know how far it is behind a particular partition on startup. Currently in each fetch response, we have high watermark for each partition, we only keep a global max-lag metric. It would be better that we keep a record of high watermark per partition and update it on each fetch response. We can add a new API to let user query the high watermark.



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