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https://issues.apache.org/jira/browse/KAFKA-12323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guozhang Wang resolved KAFKA-12323.
-----------------------------------
Resolution: Fixed
> Record timestamps not populated in event
> ----------------------------------------
>
> Key: KAFKA-12323
> URL: https://issues.apache.org/jira/browse/KAFKA-12323
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 2.7.0
> Reporter: Adam Bellemare
> Assignee: Guozhang Wang
> Priority: Blocker
> Fix For: 2.8.0, 2.7.1
>
> Attachments: PunctuateTimestampZeroTest.java
>
>
> Upgraded a kafka streams application from 2.6.0 to 2.7.0. Noticed that the
> events being produced had a "CreatedAt" timestamp = 0, causing downstream
> failures as we depend on those timestamps. Reverting back to 2.6.0/2.6.1
> fixed this issue. This was the only change to the Kafka Streams application.
> Consuming the event stream produced by 2.6.0 results in events that, when
> consumed using the `kafka-avro-console-consumer` and `--property
> print.timestamp=true` result in events prepended with the event times, such
> as:
> {code:java}
> CreateTime:1613072202271 <key> <value>
> CreateTime:1613072203412 <key> <value>
> CreateTime:1613072205431 <key> <value>
> {code}
> etc.
> However, when those events are produced by the Kafka Streams app using 2.7.0,
> we get:
> {code:java}
> CreateTime:0 <key> <value>
> CreateTime:0 <key> <value>
> CreateTime:0 <key> <value>
> {code}
> I don't know if these is a default value somewhere that changed, but this is
> actually a blocker for our use-cases as we now need to circumnavigate this
> limitation (or roll back to 2.6.1, though there are other issues we must deal
> with then). I am not sure which unit tests in the code base to look at to
> validate this, but I wanted to log this bug now in case someone else has
> already seen this or an open one exists (I didn't see one though).
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