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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CARBONDATA-198) Implementing system level lock for compaction.
Date Thu, 01 Sep 2016 06:22:20 GMT

    [ https://issues.apache.org/jira/browse/CARBONDATA-198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15454467#comment-15454467
] 

ASF GitHub Bot commented on CARBONDATA-198:
-------------------------------------------

Github user ravikiran23 commented on a diff in the pull request:

    https://github.com/apache/incubator-carbondata/pull/116#discussion_r77119210
  
    --- Diff: core/src/main/java/org/apache/carbondata/core/constants/CarbonCommonConstants.java
---
    @@ -904,6 +904,27 @@
        */
       public static final int DEFAULT_CARBON_BLOCKLETDISTRIBUTION_MIN_REQUIRED_SIZE = 2;
     
    +  /**
    +   * File created in case of minor compaction request
    +   */
    +  public static String minorCompactionRequiredFile = "compactionRequired_minor";
    +
    +  /**
    +   * File created in case of major compaction request
    +   */
    +  public static String majorCompactionRequiredFile = "compactionRequired_major";
    +
    +  /**
    +   * Property for enabling system level compaction lock.1 compaction can run at once.
    +   */
    +  public static String ENABLE_SYSTEM_LEVEL_COMPACTION_LOCK =
    +      "carbon.enable.systemlevel.compaction.lock";
    --- End diff --
    
    fixed. 


> Implementing system level lock for compaction.
> ----------------------------------------------
>
>                 Key: CARBONDATA-198
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-198
>             Project: CarbonData
>          Issue Type: Bug
>          Components: spark-integration
>            Reporter: ravikiran
>
> 1. making DDL of compaction as blocking call.
> 2. implemented System level compaction locking. only one compaction allowed , other requests
will create compaction request file. 



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