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https://issues.apache.org/jira/browse/CASSANDRA-18669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Semb Wever updated CASSANDRA-18669:
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Fix Version/s: 5.x
(was: NA)
> Concurrency is broken in the block balanced tree for queries
> ------------------------------------------------------------
>
> Key: CASSANDRA-18669
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18669
> Project: Cassandra
> Issue Type: Bug
> Components: Feature/SAI
> Reporter: Mike Adamson
> Assignee: Mike Adamson
> Priority: Normal
> Fix For: 5.x
>
>
> Performance testing has highlighted that concurrent queries are broken
> against the block balanced tree because the mutable traversal state was
> pushed up to the walker that is linked to an SSTableIndex so is shared
> amongst all queries.
> A new traversal state should be created for each query and marked as not
> threadsafe. We should add a test to show that concurrent queries work against
> the block balanced tree.
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