Re: Help for Loading data from oracle database to Ignite cache
If you're planning to sync data back to Oracle DB from a cache than I would suggest you setting up Oracle DB as a persistent store. Once setup you can use IgniteCache.loadAll/loadLocal to prefill a cache with data.
Please refer to these articles for detailed explanation -  and 
On the other hand if you aren't going to sync data from cache to Oracle DB than I can suggest two options:
- CacheLoadStoreOnlyAdapter that has to be set up as a persistent storage as well. Thus articles  and  are also helpful in this situation;
- IgniteDataStreamer where you'll put data from your database and the streamer will spread it across the cluster as quick as possible. More info on the streamer can be found here - 
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