Hi Andrey,
After enabling persistence, Ignite itself will be responsible for data
eviction from memory to disk and eviction mode or threshold can't be
changed for it. Parameters pageEvictionMode and evictionThreshold related
to the complete data eviction from Ignite(not from memory to disk) and more
designed for in memory cases.
1. Total memory, that will be used in offheap for this persistence region.
2. No, for offheap, for this region, will be used ${config.node.memory.max}.
Also, don't forget about heap and checkpoint buffer size.
3. With enabled pageEvictionMode, data will be evicted from disk too.
Evgenii
вт, 24 мар. 2020 г. в 10:23, Andrey Davydov <andrey.davy...@gmail.com>:
> Hello,
>
>
>
> Please help me to setup data region properly.
>
>
>
> I would like to have region which can store up to ${config.node.total.
> memory.max} bytes, but only small part of data in RAM.
>
>
>
> My current config (Ignite 2.7.6):
>
>
>
> <bean
> class="org.apache.ignite.configuration.DataRegionConfiguration">
>
> <property name="name" value="My
> PersistDataRegion"/>
>
> <property name="persistenceEnabled"
> value="true"/>
>
>
>
> <property name="initialSize"
> value="${config.node.memory.initial}"/>
>
> <property name="maxSize"
> value="${config.node.memory.max}"/>
>
>
>
> <property name="pageEvictionMode"
> value="RANDOM_2_LRU"/>
>
> <property name="evictionThreshold"
> value="${config.node.memory.eviction.threshold}"/>
>
>
>
> <property name="metricsEnabled" value="true"/>
>
> </bean>
>
>
>
> Please confirm three points:
>
>
>
> 1. Total size will be ${config.node.memory.max}
> 2. Total used ram size will be approximately ${config.node.memory.max}*
> ${config.node.memory.eviction.threshold}
> 3. Data will not be evicted from disk, only from RAM
>
>
>
> Thanks.
>
> Andrey.
>
>
>
