Roee Zilkha created CASSANDRA-15026:
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Summary: Lazy initialization for faster start time
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
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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