[jira] [Updated] (CASSANDRA-10273) Reduce number of data directory scans during startup

["Jeremy Hanna (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-10273?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jeremy Hanna updated CASSANDRA-10273:
-------------------------------------
    Complexity: Low Hanging Fruit

> Reduce number of data directory scans during startup
> ----------------------------------------------------
>
>                 Key: CASSANDRA-10273
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10273
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Local/Startup and Shutdown
>            Reporter: Robert Stupp
>            Assignee: Shaurya Gupta
>            Priority: Low
>              Labels: lhf
>         Attachments: patch_CASSANDRA-10273_trunk
>
>
> ATM we scan each data directory four times. We could easily reduce that to at least two, maybe to one.
> # pre-flight (startup tests) scrub
> # pre-flight (startup tests) sstable min version
> # {{ColumnFamilyStore.createColumnFamilyStore}}
> # {{ColumnFamilyStore.<init>}} (if {{loadSSTables==true}})
> First two pre-flight tests could be combined to one and 3+4 could also be combined, as both appear at pretty related code paths.



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