Need help on starting the Ignite cache in 2 node cluster - distributed-caching

Question

I am novice in Ignite and trying to utilize Ignite to setup in-memory cache. I did some basic configuration and started the Ignite based pluggable persistence work on single node. Now, I am planning to test the performance on 2 node cluster and setting up the ignite configuration as per below:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="countryCacheStoreFactory" class="javax.cache.configuration.FactoryBuilder" factory-method="factoryOf">
<constructor-arg><value>com.xyz.exploreignite.cache.CustomCacheStore</value></constructor-arg>
</bean>
<bean id="stateCacheStoreFactory" class="javax.cache.configuration.FactoryBuilder" factory-method="factoryOf">
<constructor-arg><value>com.xyz.exploreignite.cache.CustomStateCacheStore</value></constructor-arg>
</bean>
<bean id="ignite.cfg" class="org.apache.ignite.configuration.IgniteConfiguration">
<property name="peerClassLoadingEnabled" value="false"/>
<property name="clientMode" value="true"/>
<property name="gridName" value="clusterGrid"/>
<property name="cacheConfiguration">
<list>
<!-- Partitioned cache example configuration (Atomic mode). -->
<bean class="org.apache.ignite.configuration.CacheConfiguration">
<property name="atomicityMode" value="ATOMIC"/>
<property name="backups" value="1"/>
<property name="name" value="customCountryCache"/>
<property name="readThrough" value="true"/>
<property name="writeThrough" value="true"/>
<property name="cacheMode" value="PARTITIONED"/>
<property name="writeBehindEnabled" value="true"/>
<property name="copyOnRead" value="true"/>
<property name="memoryMode" value="OFFHEAP_TIERED"/>
<property name="atomicWriteOrderMode" value="PRIMARY"/>
<property name="indexedTypes" >
<list>
<value>java.lang.Integer</value>
<value>com.xyz.exploreignite.pojo.Country</value>
</list>
</property>
<!-- Cache store. -->
<property name="cacheStoreFactory" ref="countryCacheStoreFactory"/>
</bean>
<bean class="org.apache.ignite.configuration.CacheConfiguration">
<property name="atomicityMode" value="ATOMIC"/>
<property name="backups" value="1"/>
<property name="name" value="customStateCache"/>
<property name="readThrough" value="true"/>
<property name="writeThrough" value="true"/>
<property name="cacheMode" value="PARTITIONED"/>
<property name="writeBehindEnabled" value="true"/>
<property name="copyOnRead" value="true"/>
<property name="memoryMode" value="OFFHEAP_TIERED"/>
<property name="atomicWriteOrderMode" value="PRIMARY"/>
<property name="indexedTypes" >
<list>
<value>java.lang.Integer</value>
<value>com.xyz.exploreignite.pojo.State</value>
</list>
</property>
<!-- Cache store. -->
<property name="cacheStoreFactory" ref="stateCacheStoreFactory"/>
</bean>
</list>
</property>
<!-- Explicitly configure TCP discovery SPI to provide list of initial nodes. -->
<property name="discoverySpi">
<bean class="org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi">
<property name="ipFinder">
<!--
Ignite provides several options for automatic discovery that can be used
instead os static IP based discovery. For information on all options refer
to our documentation: http://apacheignite.readme.io/docs/cluster-config
-->
<!-- Uncomment static IP finder to enable static-based discovery of initial nodes. -->
<bean class="org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder">
<!--<bean class="org.apache.ignite.spi.discovery.tcp.ipfinder.multicast.TcpDiscoveryMulticastIpFinder">-->
<property name="addresses">
<list>
<value>127.0.0.1:47500..47509</value>
<value>172.26.49.1:47500..47509</value>
<!-- In distributed environment, replace with actual host IP address. -->
<value>172.26.49.2:47500..47509</value>
</list>
</property>
</bean>
</property>
</bean>
</property>
</bean>
Now, while starting ignite with "bin/ignite.sh " on both the nodes it shows failed to connect to server. While running only "bin/ignite.sh" in parallel to above one, both the individual ignite config instance starts in standalone mode with only 1 client. I need to have both of them utilizing the shared instance. Please suggest possible issues in my deployment/execution.

Answer 1

Try to remove <value>127.0.0.1:47500..47509</value> line from the discovery configuration. It doesn't make much for a distributed cluster.

Answer 2

That configuration is in <property name="clientMode" value="true"/> You need to have at least one node set to <property name="clientMode" value="false"/> or else your clients won't have any server nodes to connect to.