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https://issues.apache.org/jira/browse/CASSANDRA-1445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeremy Hanna reassigned CASSANDRA-1445:
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Assignee: Jeremy Hanna
> Make keys/rows cached more safe
> -------------------------------
>
> Key: CASSANDRA-1445
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1445
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jeremy Hanna
> Assignee: Jeremy Hanna
> Priority: Minor
>
> Currently when a user sets keys/rows cached for their column families, they
> do at their own risk. If you cache too much information, you will get an OOM
> error on the server and crash the server.
> This improvement would be to make that configuration safer.
> In order to accomplish this, we could add a configuration option for size of
> cache (for either). The server would be able to see how much data is
> expected to be cached based on column family settings and make a best effort
> to cache it. However, it would not exceed that maximum value for the node
> (by some form of approximation). Instead it would weight the different
> values for caching and satisfy the expectation as best it can. So it would
> potentially cache less than was requested, but at least it would not crash
> the server.
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