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Posted to dev@sqoop.apache.org by "Jarek Jarcec Cecho (JIRA)" <ji...@apache.org> on 2016/04/21 15:30:25 UTC

[jira] [Assigned] (SQOOP-2906) Optimization of AvroUtil.toAvroIdentifier

     [ https://issues.apache.org/jira/browse/SQOOP-2906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jarek Jarcec Cecho reassigned SQOOP-2906:
-----------------------------------------

    Assignee: Joeri Hermans

> Optimization of AvroUtil.toAvroIdentifier
> -----------------------------------------
>
>                 Key: SQOOP-2906
>                 URL: https://issues.apache.org/jira/browse/SQOOP-2906
>             Project: Sqoop
>          Issue Type: Improvement
>            Reporter: Joeri Hermans
>            Assignee: Joeri Hermans
>              Labels: avro, hadoop, optimization
>
> Hi all
> Our distributed profiler indicated some inefficiencies in the AvroUtil.toAvroIdentifier method, more specifically, the use of Regex patterns. This can be directly observed from the FlameGraph generated by this profiler (https://jhermans.web.cern.ch/jhermans/sqoop_avro_flamegraph.svg). We implemented an optimization, and compared this with the original method. On our testing machine, the optimization by itself is about 500% (on average) more efficient compared to the original implementation. We have yet to test how this optimization will influence the performance of user jobs.
> Any suggestions or remarks are welcome.
> Kind regards,
> Joeri
> https://github.com/apache/sqoop/pull/18



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