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https://issues.apache.org/jira/browse/IGNITE-4164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Ozerov updated IGNITE-4164:
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Component/s: (was: SQL)
cache
> Add support for parallel loading of caches using custom SQL load queries in
> org.apache.ignite.cache.store.jdbc.CacheAbstractJdbcStore#loadCache
> -----------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: IGNITE-4164
> URL: https://issues.apache.org/jira/browse/IGNITE-4164
> Project: Ignite
> Issue Type: Improvement
> Components: cache
> Affects Versions: 1.7
> Reporter: Anghel Botos
>
> Please add support for parallel loading of caches using custom SQL load
> queries in
> org.apache.ignite.cache.store.jdbc.CacheAbstractJdbcStore#loadCache. For the
> moment this is not possible, as the current implementation performs the load
> for each entity type in the cache using a single
> {{LoadCacheCustomQueryWorker}}, as opposed to the the approach that is used
> when no custom SQL queries are provided for the load, where for each entity
> type, the load is distributed across several threads based on some ranges.
> While it may not be possible to support parralel load with any custom SQL
> query (as this would mean that Ignite would have to somehow understand the
> meaning of that custom query), it would still be a significant improvement if
> it would be possible to have the parallel load when providing a custom
> {{WHERE}} clause for each entity type (instead of a full custom query).
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