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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (APEXMALHAR-1966) Cassandra output operator improvements
Date Wed, 06 Apr 2016 14:06:25 GMT

    [ https://issues.apache.org/jira/browse/APEXMALHAR-1966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15228297#comment-15228297
] 

ASF GitHub Bot commented on APEXMALHAR-1966:
--------------------------------------------

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

    https://github.com/apache/incubator-apex-malhar/pull/227#discussion_r58710629
  
    --- Diff: contrib/src/main/java/com/datatorrent/contrib/cassandra/CassandraPOJOOutputOperator.java
---
    @@ -102,20 +92,31 @@ public CassandraPOJOOutputOperator()
       }
     
       @Override
    +  public void beginWindow(long windowId)
    +  {
    +    super.beginWindow(windowId);
    +    recordsProcessed = 0;
    +    errorRecords = 0;
    +  }
    +
    +  @Override
       public void activate(Context.OperatorContext context)
       {
    +    // clear if it had anything
    +    columnDataTypes.clear();
    --- End diff --
    
    why is this necessary?


> Cassandra output operator improvements
> --------------------------------------
>
>                 Key: APEXMALHAR-1966
>                 URL: https://issues.apache.org/jira/browse/APEXMALHAR-1966
>             Project: Apache Apex Malhar
>          Issue Type: Improvement
>            Reporter: Priyanka Gugale
>            Assignee: Priyanka Gugale
>
> Update existing Cassandra output operator to:
> 1. Accept use defined parameterized queries, the queries could be for update, insert
or delete.
> 2. Add error port to emit tuples which couldn't be written to database.
> 3. Add metrics
> 4. Provide a way to restrict batch size



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