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https://issues.apache.org/jira/browse/KAFKA-740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias J. Sax resolved KAFKA-740.
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Resolution: Abandoned
> Improve crash-safety of log segment swap
> ----------------------------------------
>
> Key: KAFKA-740
> URL: https://issues.apache.org/jira/browse/KAFKA-740
> Project: Kafka
> Issue Type: Bug
> Components: log
> Reporter: Jay Kreps
> Assignee: Jay Kreps
> Priority: Major
> Labels: reliability
>
> Currently Log.replaceSegments has a bug that can cause a swap containing
> multiple segments to partially complete. This would lead to duplicate data in
> the log.
> The proposed fix is to use a name like offset1_and_offset2.swap for a segment
> meant to replace segments with base offsets offset1 and offset2.
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