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https://issues.apache.org/jira/browse/CASSANDRA-1093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12887991#action_12887991
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Brandon Williams commented on CASSANDRA-1093:
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If it is a node is being errantly marked down, in 0.6.3 or later you can try
increasing the PhiConvictThreshold configuration directive and see if that
helps. EC2 users are setting it to 10 or 11, 8 is the default.
> BinaryMemtable interface silently dropping data.
> ------------------------------------------------
>
> Key: CASSANDRA-1093
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1093
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Environment: Linux Centos5, Fedora Core 4. Java HotSpot Server
> 1.6.0_14. See readme for more details.
> Reporter: Toby Jungen
> Assignee: Brandon Williams
> Fix For: 0.6.3
>
> 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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