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https://issues.apache.org/jira/browse/CARBONDATA-241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15496975#comment-15496975
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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_r79222167
  
    --- Diff: 
hadoop/src/main/java/org/apache/carbondata/hadoop/CarbonInputFormat.java ---
    @@ -101,6 +106,8 @@
       //comma separated list of input segment numbers
       public static final String INPUT_SEGMENT_NUMBERS =
           "mapreduce.input.carboninputformat.segmentnumbers";
    +  public static final String INVALID_SEGMENT_NUMBERS =
    +      "mapreduce.input.carboninputformat.invalidsegmentnumbers";
    --- End diff --
    
    Invalid segment deletion, need not be through CarbonInputFormat, When 
Invalid segments list given to Btree(both in Driver and executor it should able 
it delete invalid blocks).


> 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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