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https://issues.apache.org/jira/browse/KAFKA-5515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16169888#comment-16169888
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ASF GitHub Bot commented on KAFKA-5515:
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Github user asfgit closed the pull request at:
https://github.com/apache/kafka/pull/3783
> Consider removing date formatting from Segments class
> -----------------------------------------------------
>
> Key: KAFKA-5515
> URL: https://issues.apache.org/jira/browse/KAFKA-5515
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Bill Bejeck
> Assignee: Damian Guy
> Labels: performance
> Fix For: 1.0.0
>
>
> Currently the {{Segments}} class uses a date when calculating the segment id
> and uses {{SimpleDateFormat}} for formatting the segment id. However this is
> a high volume code path and creating a new {{SimpleDateFormat}} and
> formatting each segment id is expensive. We should look into removing the
> date from the segment id or at a minimum use a faster alternative to
> {{SimpleDateFormat}}. We should also consider keeping a lookup of existing
> segments to avoid as many string operations as possible.
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