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https://issues.apache.org/jira/browse/CASSANDRA-3859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13201482#comment-13201482
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Brandon Williams commented on CASSANDRA-3859:
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Input formats would implement getProgress(), but I don't see an equivalent for 
output formats.  CFOF isn't implementing any method like this and doesn't 
experience timeout problems, have you actually experienced this?
                
> Add Progress Reporting to Cassandra SstableLoader for BulkOutputFormat
> ----------------------------------------------------------------------
>
>                 Key: CASSANDRA-3859
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3859
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Hadoop, Tools
>    Affects Versions: 1.1
>            Reporter: Samarth Gahire
>            Assignee: Brandon Williams
>            Priority: Minor
>              Labels: bulkloader, hadoop, mapreduce, sstableloader
>             Fix For: 1.1
>
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> When we are using the BulkOutputFormat to load the data to cassandra. We 
> should use the progress reporting to Hadoop Job within Sstable loader because 
> while loading the data for particular task if streaming is taking more time 
> and progress is not reported to Job it may kill the task with timeout 
> exception. 

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