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Posted to issues@tez.apache.org by "Jonathan Eagles (JIRA)" <ji...@apache.org> on 2017/03/07 05:32:32 UTC

[jira] [Updated] (TEZ-3650) Improve performance of FetchStatsLogger#logIndividualFetchComplete

     [ https://issues.apache.org/jira/browse/TEZ-3650?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Eagles updated TEZ-3650:
---------------------------------
    Attachment: TEZ-3650.1.patch

> 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
>
>
> 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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