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https://issues.apache.org/jira/browse/GRIFFIN-295?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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William Guo resolved GRIFFIN-295.
---------------------------------
    Fix Version/s: 0.6.0
       Resolution: Fixed

Issue resolved by pull request 546
[https://github.com/apache/griffin/pull/546]

> Limit the memory used by test case
> ----------------------------------
>
>                 Key: GRIFFIN-295
>                 URL: https://issues.apache.org/jira/browse/GRIFFIN-295
>             Project: Griffin
>          Issue Type: Improvement
>            Reporter: Wan Kun
>            Priority: Major
>             Fix For: 0.6.0
>
>         Attachments: 1.png, 2.png, 3.png, 4.png
>
>          Time Spent: 1h 40m
>  Remaining Estimate: 0h
>
> The container memory size is 3G in travis, but out test cases always uses 
> more than 3G memory, so `Cannot allocate memory` will be thrown.
>   
> {code:java}
> Java HotSpot(TM) 64-Bit Server VM warning: INFO: 
> os::commit_memory(0x00000000fe980000, 23592960, 0) failed; error='Cannot 
> allocate memory' (errno=12)
> #
> # There is insufficient memory for the Java Runtime Environment to continue.
> # Native memory allocation (mmap) failed to map 23592960 bytes for committing 
> reserved memory.
> # An error report file with more information is saved as:
> # /home/travis/build/apache/griffin/measure/hs_err_pid11948.log
> # [ timer expired, abort... ]
> {code}
>  
>  There are two kind of programs in our tests, the maven main program and the 
> tests run by maven-surefire-plugin and scalatest-maven-plugin.
> If the memory is not limited, test cases will occupy as much memory as 
> possible especially spark jobs.
> Spark jobs will not free the memory until a full GC occurs , even if we have 
> stopped the spark context .so we need to limit the momery used by test cases.
>  We can limit the maven memory used by set export MAVEN_OPTS=" -Xmx1024m 
> -XX:ReservedCodeCacheSize=128m" , and we can limit the memory used by spark 
> job tests by configuring the maven-surefire-plugin and scalatest-maven-plugin.
>   
>  For example:
>  Before we limit the memory used, maven program occupy 1.5G memory and spark 
> job occupy 1.8G memory.
>  !1.png!
> !2.png!
>  
>  After we limit the memory used, maven program occupy 1G memory and spark job 
> occupy 1G memory.
>   
>  !3.png!
>   
>  !4.png!



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