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https://issues.apache.org/jira/browse/CASSANDRA-10681?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15009660#comment-15009660
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Jason Brown commented on CASSANDRA-10681:
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+1
> make index building pluggable via IndexBuildTask
> ------------------------------------------------
>
> Key: CASSANDRA-10681
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10681
> Project: Cassandra
> Issue Type: Sub-task
> Components: Local Write-Read Paths
> Reporter: Pavel Yaskevich
> Assignee: Pavel Yaskevich
> Priority: Minor
> Labels: sasi
> Fix For: 3.x
>
>
> Currently index building assumes one and only way to build all of the indexes
> - through SecondaryIndexBuilder - which merges all of the sstables together,
> collates columns etc. Such works fine for built-in indexes but not for SASI
> since it's attaches to every SSTable individually. We need a "IndexBuildTask"
> interface (based on CompactionInfo.Holder) to be returned from Index on
> demand to give power to SI interface implementers to decide how build should
> work. This might be less effective for CassandraIndex, since this effectively
> means that collation will have to be done multiple times on the same data,
> but nevertheless is a good compromise for clean interface to outside world.
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