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https://issues.apache.org/jira/browse/IMPALA-11005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17460800#comment-17460800
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ASF subversion and git services commented on IMPALA-11005:
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Commit 1ed48a542beeadc544193fbd4e74c2d1ac68daf5 in impala's branch
refs/heads/master from wzhou-code
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=1ed48a5 ]
IMPALA-11005 (part 3): Repalce random number generator with mt19937_64
Previous patch upgraded boost library. This patch changes 64-bit random
number generator from ranlux64_3 to mt19937_64 since mt19937_64 has
better performance according to boost benchmark at https://www.boost.org
/doc/libs/1_74_0/doc/html/boost_random/performance.html.
Also fixs an unit-test which is affected by the change of random number
generator.
Testing:
- Passed exhaustive tests.
Change-Id: Iade226fc17442f4d7b9b14e4a9e80a30a3856226
Reviewed-on: http://gerrit.cloudera.org:8080/18022
Reviewed-by: Impala Public Jenkins <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
> Upgrade Boost library for Impala
> --------------------------------
>
> Key: IMPALA-11005
> URL: https://issues.apache.org/jira/browse/IMPALA-11005
> Project: IMPALA
> Issue Type: Sub-task
> Reporter: Wenzhe Zhou
> Assignee: Wenzhe Zhou
> Priority: Major
>
> We need to upgrade Boost library from 1.61.0 to 1.74.0. This requires code
> change in native-toolchain and impala.
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