Hello! Data is always written to persistence immediately (via WAL). You can control eviction of offheap with evictionThreshold and pageEvictionMode settings of DataRegionConfiguration.
Regards, -- Ilya Kasnacheev пн, 8 июл. 2019 г. в 17:50, Andrey Dolmatov <[email protected]>: > When data overfit dataRegion max size, so no more available offheap space, > then data goes to persistence. So, what option controls how data pages > should be evicted from offheap to persistence. > > On Mon, Jul 8, 2019, 5:33 PM Ilya Kasnacheev <[email protected]> > wrote: > >> Hello! >> >> Data is always stored in offheap. Eviction strictly controls onheap >> cache. Once data is evicted from onheap it is available in offheap. >> >> Regards, >> -- >> Ilya Kasnacheev >> >> >> пн, 8 июл. 2019 г. в 17:31, Andrey Dolmatov <[email protected]>: >> >>> We plan to use persistence in production. I didn't understand, >>> CacheConfiguration.EvictionPolicy specify heap->offheap eviction, >>> offheap->persistence eviction or both. It's not clear for me. >>> >>> On Mon, Jul 8, 2019, 5:19 PM Ilya Kasnacheev <[email protected]> >>> wrote: >>> >>>> Hello! >>>> >>>> Oops, I was wrong. This is indeed the wrong setting. >>>> >>>> Have you tried specifying evictionPolicy? I think it is the one that >>>> controls eviction from onheap cache. You can put a LruEvictionPolicy of 100 >>>> 000 here, for example. >>>> >>>> Regards, >>>> -- >>>> Ilya Kasnacheev >>>> >>>> >>>> пн, 8 июл. 2019 г. в 17:09, Andrey Dolmatov <[email protected]>: >>>> >>>>> No, because we didnt specify QueryEntity. >>>>> Does onheapCacheEnabled uses for SQL only? >>>>> What default value for sqlOnheapCacheMaxSize? >>>>> >>>>> пн, 8 июл. 2019 г. в 17:05, Ilya Kasnacheev <[email protected] >>>>> >: >>>>> >>>>>> Hello! >>>>>> >>>>>> Have you tried also specifying sqlOnheapCacheMaxSize? You can specify >>>>>> 100 000 if you like. >>>>>> >>>>>> Regards, >>>>>> -- >>>>>> Ilya Kasnacheev >>>>>> >>>>>> >>>>>> пн, 8 июл. 2019 г. в 17:01, Andrey Dolmatov <[email protected]>: >>>>>> >>>>>>> We use simple replicated KV cache. >>>>>>> We try to upload 32 000 000 small records <Long, Long> to it (about >>>>>>> 6Gb in data region, persistance disabled). We load data using >>>>>>> DataStreamer. >>>>>>> >>>>>>> If we set onheapCacheEnabled=false, server node consumes heap about >>>>>>> 500 Mb. >>>>>>> If we set onheapCacheEnabled=true, server node consumes heap about 6 >>>>>>> Gb. >>>>>>> >>>>>>> Why DataStreamer uses heap memory to load data? Why on-heap size is >>>>>>> unlimited (not just 100.000 records)? What default on-heap eviction >>>>>>> policy? >>>>>>> >>>>>>> <bean class="org.apache.ignite.configuration.CacheConfiguration"> >>>>>>> >>>>>>> <property name="cacheMode" value="REPLICATED"/> >>>>>>> <property name="onheapCacheEnabled" >>>>>>> value="true"/> >>>>>>> <property name="copyOnRead" value="false"/> >>>>>>> >>>>>>> Thanks! >>>>>>> >>>>>>
