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Posted to issues@tez.apache.org by "Jonathan Eagles (JIRA)" <ji...@apache.org> on 2014/09/10 06:09:29 UTC

[jira] [Assigned] (TEZ-1526) LoadingCache for TezTaskID slow for large jobs

     [ https://issues.apache.org/jira/browse/TEZ-1526?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Eagles reassigned TEZ-1526:
------------------------------------

    Assignee: Jonathan Eagles

> LoadingCache for TezTaskID slow for large jobs
> ----------------------------------------------
>
>                 Key: TEZ-1526
>                 URL: https://issues.apache.org/jira/browse/TEZ-1526
>             Project: Apache Tez
>          Issue Type: Improvement
>            Reporter: Jonathan Eagles
>            Assignee: Jonathan Eagles
>              Labels: performance
>         Attachments: 100000-TezTaskIDs.patch, TEZ-1526-v1.patch
>
>
> Using the LoadingCache with default builder settings. 100,000 TezTaskIDs are created in 10 seconds on my setup. With a LoadingCache initialCapacity of 10,000 they are created in 300 ms. With no LoadingCache, they are created in 10 ms. A test case in attached to illustrate the condition I would like to be sped up.



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