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https://issues.apache.org/jira/browse/CASSANDRA-10273?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Giampaolo updated CASSANDRA-10273:
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Description:
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.
was:
ATM we scan each data directory four times. We could easily reduce that to at
least two, maybe to one.
1. pre-flight (startup tests) scrub
1. pre-flight (startup tests) sstable min version
1. {{ColumnFamilyStore.createColumnFamilyStore}}
1. {{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.
> 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
> Reporter: Robert Stupp
> Assignee: Giampaolo
> Priority: Minor
> Labels: lhf
>
> 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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