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Posted to issues@tez.apache.org by "Jonathan Eagles (JIRA)" <ji...@apache.org> on 2017/03/07 04:59:32 UTC

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

Jonathan Eagles created TEZ-3650:
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             Summary: 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


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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