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From "Gregor Uhlenheuer (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KAFKA-5584) Incorrect log size for topics larger than 2 GB
Date Wed, 12 Jul 2017 07:24:00 GMT
Gregor Uhlenheuer created KAFKA-5584:

             Summary: Incorrect log size for topics larger than 2 GB
                 Key: KAFKA-5584
                 URL: https://issues.apache.org/jira/browse/KAFKA-5584
             Project: Kafka
          Issue Type: Bug
          Components: log
            Reporter: Gregor Uhlenheuer
         Attachments: Screen Shot 2017-07-12 at 09.10.53.png

The {{size}} of a {{Log}} is calculated incorrectly due to an Integer overflow. For large
topics (larger than 2 GB) this value overflows.

This is easily observable in the reported metrics values of the path {{log.Log.partiion.*.topic.<topicname>.Size}}
(see attached screenshot).

Moreover I think this breaks the size-based retention (via {{log.retention.bytes}} and {{retention.bytes}})
of large topics as well.

I am not sure on the recommended workflow, should I open a pull request on github with a fix?

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