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https://issues.apache.org/jira/browse/CASSANDRA-14497?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeremy Hanna updated CASSANDRA-14497:
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Labels: security (was: )
> Add Role login cache
> --------------------
>
> Key: CASSANDRA-14497
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14497
> Project: Cassandra
> Issue Type: Improvement
> Components: Auth
> Reporter: Jay Zhuang
> Assignee: Sam Tunnicliffe
> Priority: Major
> Labels: security
>
> The
> [{{ClientState.login()}}|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/service/ClientState.java#L313]
> function is used for all auth message:
> [{{AuthResponse.java:82}}|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/transport/messages/AuthResponse.java#L82].
> But the
> [{{role.canLogin}}|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/auth/CassandraRoleManager.java#L521]
> information is not cached. So it hits the database every time:
> [{{CassandraRoleManager.java:407}}|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/auth/CassandraRoleManager.java#L407].
> For a cluster with lots of new connections, it's causing performance issue.
> The mitigation for us is to increase the {{system_auth}} replication factor
> to match the number of nodes, so
> [{{local_one}}|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/auth/CassandraRoleManager.java#L488]
> would be very cheap. The P99 dropped immediately, but I don't think it is
> not a good solution.
> I would purpose to add {{Role.canLogin}} to the RolesCache to improve the
> auth performance.
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