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From "Toby Jungen (JIRA)" <>
Subject [jira] Created: (CASSANDRA-1093) BinaryMemtable interface silently dropping data.
Date Fri, 14 May 2010 20:14:42 GMT
BinaryMemtable interface silently dropping data.

                 Key: CASSANDRA-1093
             Project: Cassandra
          Issue Type: Bug
          Components: Core
    Affects Versions: 0.6.1
         Environment: Linux Centos5, Fedora Core 4. Java HotSpot Server 1.6.0_14. See readme
for more details.
            Reporter: Toby Jungen
         Attachments: cassandra_bmt_test.tar.gz

I've been attempting to use the Binary Memtable (BMT) interface to load a large number of
rows. During my testing, I discovered that on larger loads (~1 million rows), occasionally
some of the data never appears in the database. This happens in a non-deterministic manner,
as sometimes all the data loads fine, and other times a significant chunk goes missing. No
errors are ever logged to indicate a problem. I'm attaching some sample code that approximates
my application's usage of Cassandra and explains this bug in more detail.

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