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https://issues.apache.org/jira/browse/CASSANDRA-8085?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksey Yeschenko updated CASSANDRA-8085:
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Reviewer: Aleksey Yeschenko
> Make PasswordAuthenticator number of hashing rounds configurable
> ----------------------------------------------------------------
>
> Key: CASSANDRA-8085
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8085
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Tyler Hobbs
> Assignee: Sam Tunnicliffe
> Fix For: 2.1.4
>
> Attachments: 8085-2.1.txt, 8085-3.0.txt
>
>
> Running 2^10 rounds of bcrypt can take a while. In environments (like PHP)
> where connections are not typically long-lived, authenticating can add
> substantial overhead. On IRC, one user saw the time to connect,
> authenticate, and execute a query jump from 5ms to 150ms with authentication
> enabled ([debug logs|http://pastebin.com/bSUufbr0]).
> CASSANDRA-7715 is a more complete fix for this, but in the meantime (and even
> after 7715), this is a good option.
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