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From gvramana <...@git.apache.org>
Subject [GitHub] carbondata pull request #1008: [CARBONDATA-1145] Fix single-pass issue for m...
Date Thu, 15 Jun 2017 11:01:44 GMT
Github user gvramana commented on a diff in the pull request:

    https://github.com/apache/carbondata/pull/1008#discussion_r122176937
  
    --- Diff: core/src/main/java/org/apache/carbondata/core/dictionary/generator/ServerDictionaryGenerator.java
---
    @@ -52,7 +52,11 @@ public void initializeGeneratorForTable(DictionaryMessage key) {
                 key.getTableUniqueName(), key.getColumnName());
         // initialize TableDictionaryGenerator first
         if (tableMap.get(key.getTableUniqueName()) == null) {
    -      tableMap.put(key.getTableUniqueName(), new TableDictionaryGenerator(dimension));
    +      synchronized (tableMap) {
    +        if (tableMap.get(key.getTableUniqueName()) == null) {
    +          tableMap.put(key.getTableUniqueName(), new TableDictionaryGenerator(dimension));
    +        }
    --- End diff --
    
    here only more else is required.
     else {
            tableMap.get(key.getTableUniqueName()).updateGenerator(dimension);		        tableMap.get(key.getTableUniqueName()).updateGenerator(dimension);
          }		      


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