[GitHub] zeppelin issue #1648: [ZEPPELIN-1673] Reduce CI log size and make it faster

[1ambda]

Github user 1ambda commented on the issue:

    https://github.com/apache/zeppelin/pull/1648
  
    @bzz 
    
    Could you review this PR? 
    
    This comment is result summary for this PR (how much time we can save)
    
    ### 1. APT cache (almost 15 secs per
    
    (before)
    <img width="657" alt="screen shot 2016-11-17 at 11 39 39 am" 
src="https://cloud.githubusercontent.com/assets/4968473/20375553/2b306884-acc3-11e6-995b-045dec268e0a.png";>
    
    (after)
    <img width="663" alt="screen shot 2016-11-17 at 11 39 51 am" 
src="https://cloud.githubusercontent.com/assets/4968473/20375557/2ec0c7aa-acc3-11e6-8468-f672be52826e.png";>
    
    ### 2. R cache (almost 250 secs per build)
    
    (before)
    <img width="1131" alt="screen shot 2016-11-17 at 12 04 20 pm" 
src="https://cloud.githubusercontent.com/assets/4968473/20375573/4c9cbc84-acc3-11e6-9717-ce6a6d9ad360.png";>
    
    (after)
    <img width="1134" alt="screen shot 2016-11-17 at 12 37 19 pm" 
src="https://cloud.githubusercontent.com/assets/4968473/20375585/526ccc58-acc3-11e6-95a9-8446a298597a.png";>
    <img width="340" alt="screen shot 2016-11-17 at 12 37 34 pm" 
src="https://cloud.githubusercontent.com/assets/4968473/20375588/57227f68-acc3-11e6-8ef7-9a86b125c00d.png";>
    
    ### 3. Log size is reduced (almost 30%, removing useless maven info logs)
    
    ```bash
    // (before result) 
https://api.travis-ci.org/jobs/176574582/log.txt?deansi=true
    // (before build) https://travis-ci.org/apache/zeppelin/builds/176574580
    
    // (after result) 
https://api.travis-ci.org/jobs/176576354/log.txt?deansi=true
    // (after build) https://travis-ci.org/apache/zeppelin/builds/176576351
    
    $ ls
    build8414_profile2.log build8416_profile2.log
    
    $ ls -alh
    total 10232
    drwxr-xr-x   4 lambda  staff   136B Nov 17 12:47 .
    drwxr-xr-x  13 lambda  staff   442B Nov 17 02:49 ..
    -rw-r--r--   1 lambda  staff   3.0M Nov 17 12:46 build8414_profile2.log
    -rw-r--r--   1 lambda  staff   2.0M Nov 17 12:47 build8416_profile2.log
    
    $ cat build8414_profile2.log | grep Download | wc -l
        7186
    $ cat build8416_profile2.log | grep Download | wc -l
           6
    ```
    
    



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