XML DataStorageConfiguration Bean

Giriş

Bu bean IgniteConfiguration bean'inin dataStorageProperty alanına denk gelir.

defaultDataRegionConfiguration Alanı

Örnek

Şöyle yaparız

<dataStorageConfiguration>
  <defaultDataRegionConfiguration
    name="Default_Region"
    initialSize="104857600"/> <!-- 100*1024*1024 -->

  <dataRegionConfigurations>
    <dataRegionConfiguration
      name="My_Region"
      initialSize="104857600"
      persistenceEnabled="true" 
      metricsEnabled="true" />
    </dataRegionConfigurations>
</dataStorageConfiguration>

defaultDataRegionConfiguration Alanı

Ne kadar bellek kullanacağını ve persistence kullanılıp kullanılmayacağını belirtiriz.

Örnek

Şöyle yaparız

<!-- Memory configuration. -->
<property name="dataStorageConfiguration">
  <bean class="org.apache.ignite.configuration.DataStorageConfiguration">
    <property name="defaultDataRegionConfiguration">
      <bean class="org.apache.ignite.configuration.DataRegionConfiguration">
        <!-- max RAM size -->
	<property name="maxSize" value="#{150 * 1024 * 1024}"/>

	<!-- memory metrics -->
	<property name="metricsEnabled" value="true"/>

	<!-- Enabling persistence. -->
	<property name="persistenceEnabled" value="true"/>
      </bean>
    </property>

    <!-- persistence metrics -->
    <property name="metricsEnabled" value="true"/>
  </bean>
</property>

wal Ayarları

• walMode 
• walSegmentSize
• writeThrottlingEnabled
• walPath
• walArchivePath

gibi bir sürü ayar yapılabilir.

walMode Alanı

FSYNC değeri alabilir

Örnek

Şöyle yaparız

<bean class="org.apache.ignite.configuration.DataStorageConfiguration">
  <property name="metricsEnabled" value="true"/>
  <property name="walMode" value="FSYNC"/>
  <property name="defaultDataRegionConfiguration">
    <bean class="org.apache.ignite.configuration.DataRegionConfiguration">
      <property name="persistenceEnabled" value="true"/>
      <property name="metricsEnabled" value="true"/>
    </bean>
  </property>

  <property name="walPath" value="/gridgain-dev/wal"/>
  <property name="walArchivePath" value="/gridgain-dev/walarchive"/>
</bean>

walSegmentSize Alanı

Örnek

Şöyle yaparız

<property name="dataStorageConfiguration">
  <bean class="org.apache.ignite.configuration.DataStorageConfiguration">
    <!-- set the size of wal segments to 128MB -->
    <property name="walSegmentSize" value="#{128 * 1024 * 1024}"/>
    <property name="writeThrottlingEnabled" value="true"/>
    <!-- Set the page size to 8 KB -->
    <property name="pageSize" value="#{8 * 1024}"/>
    <property name="defaultDataRegionConfiguration">
      <bean class="org.apache.ignite.configuration.DataRegionConfiguration">
        <property name="name" value="Default_Region"/>
	<!-- Memory region of 20 MB initial size. -->
	<property name="initialSize" value="#{20 * 1024 * 1024}"/>
	<!-- Memory region of 8 GB max size. -->
	<property name="maxSize" value="#{8L * 1024 * 1024 * 1024}"/>
	<!-- Enabling eviction for this memory region. -->
	<property name="pageEvictionMode" value="RANDOM_2_LRU"/>
	<property name="persistenceEnabled" value="true"/>
	<!-- Increasing the buffer size to 1 GB. -->
	<property name="checkpointPageBufferSize" value="#{1024L * 1024 * 1024}"/>
      </bean>
   </property>
   <property name="walPath" value="/gridgain/wal"/>
   <property name="walArchivePath" value="/gridgain/walarchive"/>
  </bean>
</property>