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From "Ismael Juma (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (KAFKA-5270) TransactionManager should send and `AddOffsetsToTxn` request only once per group per transaction
Date Tue, 27 Jun 2017 14:20:00 GMT

     [ https://issues.apache.org/jira/browse/KAFKA-5270?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ismael Juma updated KAFKA-5270:
-------------------------------
    Parent Issue: KAFKA-5527  (was: KAFKA-4815)

> TransactionManager should send and `AddOffsetsToTxn` request only once per group per
transaction
> ------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-5270
>                 URL: https://issues.apache.org/jira/browse/KAFKA-5270
>             Project: Kafka
>          Issue Type: Sub-task
>          Components: clients, core, producer 
>            Reporter: Apurva Mehta
>              Labels: exactly-once
>             Fix For: 0.11.1.0
>
>
> Currently, we send the `AddOffsetsToTxn` request unconditionally every time, even if
we receive multiple sendOffsets for the same group. We could keep track of the added groups
in the TransactionManager and not resend this RPC multiple times for the same transaction
as the subsequent instances add no new information.



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