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https://issues.apache.org/jira/browse/CASSANDRA-8830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14327248#comment-14327248
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Pierre commented on CASSANDRA-8830:
-----------------------------------

When I use .sorted() (SSTableSimpleWriter writer) I have no issue.

Another strange behiavior is if I use .sorted() and I *insert unordered 
clustering columns* for a same partition, it doesn't throw ex and the resulting 
sstable is correct and have *clustering columns sorted*. The doc specify it 
should throw an ex in this case. 
{quote}
         * If this option is used, the resulting writer will expect rows to be
         * added in SSTable sorted order (and an exception will be thrown if 
that
         * is not the case during insertion). The SSTable sorted order means 
that
         * rows are added such that their partition key respect the partitioner
         * order and for a given partition, that the rows respect the clustering
         * columns order.
{quote}


> CQLSSTableWriter addRow doesn't throw ex on error
> -------------------------------------------------
>
>                 Key: CASSANDRA-8830
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8830
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Pierre
>         Attachments: OOM.java
>
>
> When I add to much row for a same partition key on a CQLSSTableWriter the 
> writer doesn't throw an exception but fail silently. I think it's linked to 
> buffer size because when I use a bigger withBufferSizeInMB() the bug doesn't 
> trigger. shouldn't It throw an exception ?
> Moreover it fails randomly between two states : 
> 1/ the sstable directory is fully deleted and Thread.exit()
> or 
> 2/ the sstable is corrupted and when you upload data to cluster you have 
> inconsistant data



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