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https://issues.apache.org/jira/browse/IMPALA-15029?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Quanlong Huang updated IMPALA-15029:
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    Attachment: ninja_log.txt

> impala-shell is always rebuilt
> ------------------------------
>
>                 Key: IMPALA-15029
>                 URL: https://issues.apache.org/jira/browse/IMPALA-15029
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Infrastructure
>            Reporter: Quanlong Huang
>            Priority: Major
>         Attachments: ninja_log, ninja_log.txt
>
>
> In my env, it took around 3 minutes to rebuild Impala even if nothing 
> changes. E.g.
> {noformat}
> time ./buildall.sh -noclean -notests -ninja
> ...
> real    2m45.974s
> user    3m28.819s
> sys    0m13.873s{noformat}
> Checked the ninja logs (.ninja_log), impala-shell is always rebuilt:
> {noformat}
> 1288    46807   0       java/CMakeFiles/java    6de2066262946d6b
> 1288    46807   0       /home/quanlong/workspace/Impala/java/CMakeFiles/java  
>   6de2066262946d6b
> 17      62058   0       shell/CMakeFiles/python3_venv   db6247c40c31643c
> 17      62058   0       shell/build/python3_venv        db6247c40c31643c
> 17      62058   0       
> /home/quanlong/workspace/Impala/shell/CMakeFiles/python3_venv   
> db6247c40c31643c
> 17      62058   0       
> /home/quanlong/workspace/Impala/shell/build/python3_venv        
> db6247c40c31643c
> 62058   124384  0       shell/CMakeFiles/shell_python3_install  
> 9b62c999f6584a4e
> 62058   124384  0       
> /home/quanlong/workspace/Impala/shell/CMakeFiles/shell_python3_install  
> 9b62c999f6584a4e
> 62058   164179  0       shell/CMakeFiles/shell_tarball  d143fdbf5803469b
> 62058   164179  0       
> /home/quanlong/workspace/Impala/shell/CMakeFiles/shell_tarball  
> d143fdbf5803469b{noformat}
> The first two columns are Start Time and End Time (in ms) of the command. 
> Attached the full .ninja_log.



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