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https://issues.apache.org/jira/browse/CARBONDATA-241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15499569#comment-15499569
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ASF GitHub Bot commented on CARBONDATA-241:
-------------------------------------------

Github user gvramana commented on a diff in the pull request:

    https://github.com/apache/incubator-carbondata/pull/158#discussion_r79290196
  
    --- Diff: 
hadoop/src/test/java/org/apache/carbondata/hadoop/ft/CarbonInputMapperTest.java 
---
    @@ -129,6 +132,37 @@ private int countTheColumns(String outPath) throws 
Exception {
         return 0;
       }
     
    +  private void runJob(String outPath, CarbonProjection projection, 
Expression filter)
    --- End diff --
    
    move back the code to original place


> OOM error during query execution in long run
> --------------------------------------------
>
>                 Key: CARBONDATA-241
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-241
>             Project: CarbonData
>          Issue Type: Bug
>            Reporter: kumar vishal
>            Assignee: kumar vishal
>
> **Problem:** During long run query execution is taking more time and it is 
> throwing out of memory issue.
> **Reason**: In compaction we are compacting segments and each segment 
> metadata is loaded in memory. So after compaction compacted segments are 
> invalid but its meta data is not removed from memory because of this 
> duplicate metadata is pile up and it is taking more memory and after few days 
> query exeution is throwing OOM
> **Solution**: Need to remove invalid blocks from memory
>  



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