Is the default memory region always there ?

[Mikael <mi...@telia.com>]

If I use something like the configuration example from the documentation:

|<bean class="org.apache.ignite.configuration.IgniteConfiguration"> <!-- 
Durable memory configuration. --> <property 
name="dataStorageConfiguration"> <bean 
class="org.apache.ignite.configuration.DataStorageConfiguration"> 
<property name="dataRegionConfigurations"> <list> <!-- Defining a data 
region that will consume up to 500 MB of RAM and will have eviction and 
persistence enabled. --> <bean 
class="org.apache.ignite.configuration.DataRegionConfiguration"> <!-- 
Custom region name. --> <property name="name" value="500MB_Region"/> 
<!-- 100 MB initial size. --> <property name="initialSize" value="#{100L 
* 1024 * 1024}"/> <!-- 500 MB maximum size. --> <property name="maxSize" 
value="#{500L * 1024 * 1024}"/> <!-- Enabling persistence for the 
region. --> <property name="persistenceEnabled" value="true"/> </bean> 
</list> </property> </bean> </property> <!-- The rest of the 
configuration. --> </bean> Will this replace the default memory region 
with only one called "500MB_Region" or will the default region still be 
there ? Mikael |

Re: Is the default memory region always there ?

[Alexey Kukushkin <ku...@gmail.com>]

Default memory region is always there even if you add more user-defined
data regions. If you are not going to use it at all and not happy with the
memory still allocated to the default region you can specify a smaller
amount of memory allocated for the default region as described here
<https://apacheignite.readme.io/docs/memory-configuration>.