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https://issues.apache.org/jira/browse/TEZ-3650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15906189#comment-15906189
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Rajesh Balamohan commented on TEZ-3650:
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[~jeagles] - sorry about the delay. Will check this tomorrow and update here.
> Improve performance of FetchStatsLogger#logIndividualFetchComplete
> ------------------------------------------------------------------
>
> Key: TEZ-3650
> URL: https://issues.apache.org/jira/browse/TEZ-3650
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Jonathan Eagles
> Assignee: Jonathan Eagles
> Attachments: TEZ-3650.1.patch, TEZ-3650.2.patch
>
>
> The cost of logging the fetch completed statement is dominated by two main
> factors 1) Formatting the download rate and 2) Minor String concatenation
> that isn't getting optimized.
> In this jira I propose a new Formatter that is optimized by implementing the
> StringBuilder#append(long) algorithm, but allows for formatting and reuse of
> StringBuilder.
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