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https://issues.apache.org/jira/browse/CASSANDRA-5502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksey Yeschenko resolved CASSANDRA-5502.
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Resolution: Won't Fix
As we are very likely moving to making SASI (CASSANDRA-10661) the new default
implementation (CASSANDRA-11075), and indexes are components of sstables there,
closing the ticket as Won't Fix.
> Secondary Index Storage
> -----------------------
>
> Key: CASSANDRA-5502
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5502
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Brooke Bryan
> Priority: Minor
>
> Currently, both the CF data, and the secondary index data are stored within
> the same folder on disk. Being able to split these into separate folders
> could be a great improvement with performance. With our data, and secondary
> index, we will query the index a lot more, so can optimise hardware for the
> two traffic shapes coming through.
> Something like /Keyspace/CF/indexes/indexname/*.db
> Not too sure how much would be involved to change this, but I would imagine
> fairly cheap cost to reward.
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