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https://issues.apache.org/jira/browse/CASSANDRA-1423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12901606#action_12901606
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Dominic Williams commented on CASSANDRA-1423:
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I should add that I've been testing on a single node RP cluster so far. I'll
try it on our multi-node cluster asap
> Cassandra's internal state broke by getting column slices. Error
> org.apache.thrift.TApplicationException: Internal error processing get_slice
> afterwards.
> ---------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-1423
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1423
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.7 beta 1
> Environment: Ubuntu 9.04
> Reporter: Dominic Williams
> Priority: Critical
> Fix For: 0.7 beta 2
>
> Attachments: fmm-add-schools.zip
>
>
> The attached program (with data that it can import) causes large column
> slices to be requested from Cassandra.
> The program itself uploads school address data to a Cassyndex full text
> index, and then allows you to search that. The program simulates someone
> typing a search into an active search box, which shows you the matches for
> the current term as you type. Thus when you enter a search term such as
> "cherwell school oxford" actually it performs the searches "c", "ch", "che",
> "cher", "cherw" etc
> You can configure the delay between the "keystrokes". If your delay allows
> the searches to complete sequentially, you are ok. But if you have a short
> delay, and searches are created in parallel, pretty quickly this error will
> arise - "org.apache.thrift.TApplicationException: Internal error processing
> get_slice".
> Once this has occurred all future attempts and getting slices of columns will
> return the same error, and your'e only option is to restart Cassandra.
> This looks like some kind of concurrency edge condition bug caused by
> requesting sufficiently large intersecting slices in parallel. It may be in
> other versions too.
> I've been testing on 0.7 B1 using an RP cluster.
> The attached maven project should pull down the scale7 libraries but if
> interested you can find the sources at http://github.com/s7
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