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https://issues.apache.org/jira/browse/CASSANDRA-15026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Roee Zilkha updated CASSANDRA-15026:
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Summary: Lazy initialization for lower latency on startup (was: Lazy
initialization for faster start time )
> Lazy initialization for lower latency on startup
> ------------------------------------------------
>
> Key: CASSANDRA-15026
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15026
> Project: Cassandra
> Issue Type: Improvement
> Components: Local/Startup and Shutdown
> Reporter: Roee Zilkha
> Priority: Minor
> Attachments: discussion.png
>
>
> Currently, Cassandra will open each and every sstable file (I assume for
> pulling its metadata and create initial in-memory mapping to persisted data
> blocks), when there are large amount of keyspaces and tables, this will cause
> a major overhead when restarting a node.
>
> In our use case, many keyspaces are rarely accessed and we would prefer that
> their initialization will be invoked lazily and not on startup, thereby
> reducing the time it takes a node to start serving clients.
>
> * Slack Conversation attached
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