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From "wujinhu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15027) AliyunOSS: Support multi-thread pre-read to improve read from Hadoop to Aliyun OSS performance
Date Fri, 05 Jan 2018 14:39:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16313216#comment-16313216
] 

wujinhu commented on HADOOP-15027:
----------------------------------

Hi [~Sammi]
Thanks for your review. I have attached some performance data, you can view the comments above.

> AliyunOSS: Support multi-thread pre-read to improve read from Hadoop to Aliyun OSS performance
> ----------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-15027
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15027
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/oss
>    Affects Versions: 3.0.0
>            Reporter: wujinhu
>            Assignee: wujinhu
>         Attachments: HADOOP-15027.001.patch, HADOOP-15027.002.patch, HADOOP-15027.003.patch,
HADOOP-15027.004.patch, HADOOP-15027.005.patch, HADOOP-15027.006.patch, HADOOP-15027.007.patch,
HADOOP-15027.008.patch, HADOOP-15027.009.patch
>
>
> Currently, AliyunOSSInputStream uses single thread to read data from AliyunOSS,  so we
can do some refactoring by using multi-thread pre-read to improve read performance.



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