persistent store with apache ignite xml configuration - configuration-files

Question

I want to use apache ignite as a cache for my database and I use persitent store for this.
My database is Cassandra and for configuration I use this wiki.
With this initialization I run ignite in windows:
ignite.bat cassandra-ignite-config.xml
cassandra-ignite-config.xml:
<?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">
<!-- Cassandra connection settings -->
<import resource="connection-settings.xml" />
<!-- Persistence settings for 'cache1' -->
<bean id="cache1_persistence_settings" class="org.apache.ignite.cache.store.cassandra.utils.persistence.KeyValuePersistenceSettings">
<constructor-arg type="org.springframework.core.io.Resource" value="persistence-settings-1.xml" />
</bean>
<!-- Persistence settings for 'cache2' -->
<bean id="cache2_persistence_settings" class="org.apache.ignite.cache.store.cassandra.utils.persistence.KeyValuePersistenceSettings">
<constructor-arg type="org.springframework.core.io.Resource" value="classpath:org/apache/ignite/tests/persistence/blob/persistence-settings-3.xml" />
</bean>
<!-- Ignite configuration -->
<bean id="ignite.cfg" class="org.apache.ignite.configuration.IgniteConfiguration">
<property name="cacheConfiguration">
<list>
<!-- Configuring persistence for "cache1" cache -->
<bean class="org.apache.ignite.configuration.CacheConfiguration">
<property name="name" value="cache1"/>
<property name="readThrough" value="true"/>
<property name="writeThrough" value="true"/>
<property name="cacheStoreFactory">
<bean class="org.apache.ignite.cache.store.cassandra.CassandraCacheStoreFactory">
<property name="dataSourceBean" value="cassandraAdminDataSource"/>
<property name="persistenceSettingsBean" value="cache1_persistence_settings"/>
</bean>
</property>
</bean>
<!-- Configuring persistence for "cache2" cache -->
<bean class="org.apache.ignite.configuration.CacheConfiguration">
<property name="name" value="cache2"/>
<property name="readThrough" value="true"/>
<property name="writeThrough" value="true"/>
<property name="cacheStoreFactory">
<bean class="org.apache.ignite.cache.store.cassandra.CassandraCacheStoreFactory">
<property name="dataSourceBean" value="cassandraAdminDataSource"/>
<property name="persistenceSettingsBean" value="cache2_persistence_settings"/>
</bean>
</property>
</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>
<!-- In distributed environment, replace with actual host IP address. -->
<value>127.0.0.1:47500..47509</value>
</list>
</property>
</bean>
</property>
</bean>
</property>
</bean>
</beans>
connection-setting.xml:
<?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="cassandraAdminCredentials" class="org.apache.ignite.tests.utils.CassandraAdminCredentials"/>
<bean id="loadBalancingPolicy" class="com.datastax.driver.core.policies.RoundRobinPolicy"/>
<bean id="contactPoints" class="org.apache.ignite.tests.utils.CassandraHelper" factory-method="getContactPointsArray"/>
<bean id="cassandraAdminDataSource" class="org.apache.ignite.cache.store.cassandra.utils.datasource.DataSource">
<property name="credentials" ref="cassandraAdminCredentials"/>
<property name="contactPoints" ref="contactPoints"/>
<property name="readConsistency" value="ONE"/>
<property name="writeConsistency" value="ONE"/>
<property name="loadBalancingPolicy" ref="loadBalancingPolicy"/>
</bean>
</beans>
persistence-setting-1.xml:
<persistence keyspace="test1" table="my_table">
<keyPersistence class="java.lang.Integer" strategy="PRIMITIVE" column="my_key"/>
<valuePersistence class="java.lang.String" strategy="PRIMITIVE" />
</persistence>
but I have this error:
class org.apache.ignite.IgniteException: Failed to instantiate Spring
XML application context (make sure all classes used in Spring
configuration are present at CLASSPATH)
[springUrl=file:~/config/cassandra-ignite-config.xml]
at org.apache.ignite.internal.util.IgniteUtils.convertException(IgniteUtils.java:927)
at org.apache.ignite.Ignition.start(Ignition.java:350)
at org.apache.ignite.startup.cmdline.CommandLineStartup.main(CommandLineStartup.java:302)
Caused by: class org.apache.ignite.IgniteCheckedException: Failed to
instantiate Spring XML application context (make sure all classes used
in Spring configuration are present at CLASSPATH)
[springUrl=file:~/config/cassandra-ignite-config.xml]
at org.apache.ignite.internal.util.spring.IgniteSpringHelperImpl.applicationContext(IgniteSpringHelperImpl.java:387)
at org.apache.ignite.internal.util.spring.IgniteSpringHelperImpl.loadConfigurations(IgniteSpringHelperImpl.java:104)
at org.apache.ignite.internal.util.spring.IgniteSpringHelperImpl.loadConfigurations(IgniteSpringHelperImpl.java:98)
at org.apache.ignite.internal.IgnitionEx.loadConfigurations(IgnitionEx.java:638)
at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:839)
at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:748)
at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:618)
at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:588)
at org.apache.ignite.Ignition.start(Ignition.java:347)
... 1 more Caused by: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot
find class [org.apache.ignite.tests.utils.CassandraAdminCredentials]
for bean with name 'cassandraAdminCredentials' defined in URL
[file:~/config/connection-settings.xml]; nested exception is
java.lang.ClassNotFoundException: org.apache.ignite.tests.utils.Cassan
draAdminCredentials
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1325)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:623)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:592)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1394)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:957)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:705)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
at org.apache.ignite.internal.util.spring.IgniteSpringHelperImpl.applicationContext(IgniteSpringHelperImpl.java:381)
... 9 more Caused by: java.lang.ClassNotFoundException: org.apache.ignite.tests.utils.CassandraAdminCredentials
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:246)
at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:395)
at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1346)
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1317)
... 17 more Failed to start grid: Failed to instantiate Spring XML application context (make sure all classes used in Spring
configuration are present at CLASSPATH)
[springUrl=~/config/cassandra-ignite-config.xml]
Note! You may use 'USER_LIBS' environment variable to specify your classpath. Press any key to continue . . .
it seems there is something missed but I don't understand it.
Update:
I use base-concepts and example number 4 of the examples.
but know I have the serialization problem for pojo example.
error:
[16:24:11,033][SEVERE][tcp-disco-msg-worker-#2%null%][TcpDiscoverySpi] Failed to unmarshal discovery data for component: 1
class org.apache.ignite.IgniteCheckedException: Failed to deserialize object with given class loader: sun.misc.Launcher$AppClassLoader#5e9f23b4
at org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal0(JdkMarshaller.java:128)
at org.apache.ignite.marshaller.AbstractNodeNameAwareMarshaller.unmarshal(AbstractNodeNameAwareMarshaller.java:94)
at org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal0(JdkMarshaller.java:142)
at org.apache.ignite.marshaller.AbstractNodeNameAwareMarshaller.unmarshal(AbstractNodeNameAwareMarshaller.java:82)
at org.apache.ignite.internal.util.IgniteUtils.unmarshal(IgniteUtils.java:9779)
at org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1716)
at org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.processNodeAddedMessage(ServerImpl.java:4216)
at org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.processMessage(ServerImpl.java:2538)
at org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.processMessage(ServerImpl.java:2362)
at org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorkerAdapter.body(ServerImpl.java:6436)
at org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.body(ServerImpl.java:2445)
at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62)
Caused by: java.io.InvalidClassException: org.apache.ignite.cache.store.cassandra.persistence.KeyValuePersistenceSettings; local class incompatible: stream classdesc serialVersionUID = -3543390829981374356, local class serialVersionUID = 4263059111698998196
at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:616)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1630)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1521)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1781)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2018)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1942)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1808)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2018)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1942)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1808)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2018)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1942)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1808)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:373)
at java.util.ArrayList.readObject(ArrayList.java:791)
at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1058)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1909)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1808)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2018)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1942)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1808)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:373)
at org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal0(JdkMarshaller.java:120)
... 11 more
Update 2:
my pom file:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>aryahamrah.ds</groupId>
<artifactId>igniteHello</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-core</artifactId>
<version>1.8.0</version>
</dependency>
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-spring</artifactId>
<version>1.8.0</version>
</dependency>
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-indexing</artifactId>
<version>1.8.0</version>
</dependency>
<!--for cassandra -->
<!-- https://mvnrepository.com/artifact/org.apache.cassandra/cassandra-all -->
<dependency>
<groupId>org.apache.cassandra</groupId>
<artifactId>cassandra-all</artifactId>
<version>3.9</version>
</dependency>
<!--<!– https://mvnrepository.com/artifact/com.datastax.cassandra/cassandra-driver-core –>-->
<dependency>
<groupId>com.datastax.cassandra</groupId>
<artifactId>cassandra-driver-core</artifactId>
<version>3.1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.collections/google-collections -->
<dependency>
<groupId>com.google.collections</groupId>
<artifactId>google-collections</artifactId>
<version>1.0</version>
</dependency>
<!--<!– https://mvnrepository.com/artifact/org.apache.ignite/ignite-cassandra-store –>-->
<!--<dependency>-->
<!--<groupId>org.apache.ignite</groupId>-->
<!--<artifactId>ignite-cassandra-store</artifactId>-->
<!--<version>1.8.0</version>-->
<!--</dependency>-->
<!-- https://mvnrepository.com/artifact/org.apache.ignite/ignite-cassandra -->
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-cassandra</artifactId>
<version>1.7.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.22</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-simple -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.7.22</version>
</dependency>
</dependencies>
</project>
connection-setting.xml:
<?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="loadBalancingPolicy" class="com.datastax.driver.core.policies.TokenAwarePolicy">
<constructor-arg type="com.datastax.driver.core.policies.LoadBalancingPolicy">
<bean class="com.datastax.driver.core.policies.RoundRobinPolicy"/>
</constructor-arg>
</bean>
<bean id="cassandraAdminDataSource" class="org.apache.ignite.cache.store.cassandra.datasource.DataSource">
<property name="readConsistency" value="ONE"/>
<property name="writeConsistency" value="ONE"/>
<property name="loadBalancingPolicy" ref="loadBalancingPolicy"/>
</bean>
<bean id="cassandraRegularDataSource" class="org.apache.ignite.cache.store.cassandra.datasource.DataSource">
<property name="readConsistency" value="ONE"/>
<property name="writeConsistency" value="ONE"/>
<property name="loadBalancingPolicy" ref="loadBalancingPolicy"/>
</bean>
</beans>
Update 3:
when I put to the cache nothing happens but when I want to get, I have these errors:
[15:16:16,008][SEVERE][pub-#53%null%][GridTaskWorker] Failed to obtain remote job result policy for result from ComputeTask.result(..) method (will fail the whole task): GridJobResultImpl [job=C4V2 [r=HelloWorld$$Lambda$8/98974893#5977d9a0], sib=GridJobSiblingImpl [sesId=c92fc496951-0257bdb2-3066-4861-8c60-47febea167d5, jobId=d92fc496951-0257bdb2-3066-4861-8c60-47febea167d5, nodeId=f2c7d14b-401f-4aea-a9af-50deeb7cb85e, isJobDone=false], jobCtx=GridJobContextImpl [jobId=d92fc496951-0257bdb2-3066-4861-8c60-47febea167d5, timeoutObj=null, attrs={}], node=TcpDiscoveryNode [id=f2c7d14b-401f-4aea-a9af-50deeb7cb85e, addrs=[0:0:0:0:0:0:0:1, 127.0.0.1, 192.168.1.113], sockAddrs=[LT-88273/169.254.247.78:47500, /0:0:0:0:0:0:0:1:47500, /127.0.0.1:47500, /192.168.1.113:47500], discPort=47500, order=1, intOrder=1, lastExchangeTime=1483530374957, loc=false, ver=1.8.0#20161205-sha1:9ca40dbe, isClient=false], ex=class o.a.i.IgniteException: HelloWorld, hasRes=true, isCancelled=false, isOccupied=true]
class org.apache.ignite.IgniteException: Remote job threw user exception (override or implement ComputeTask.result(..) method if you would like to have automatic failover for this exception).
at org.apache.ignite.compute.ComputeTaskAdapter.result(ComputeTaskAdapter.java:101)
at org.apache.ignite.internal.processors.task.GridTaskWorker$5.apply(GridTaskWorker.java:1030)
at org.apache.ignite.internal.processors.task.GridTaskWorker$5.apply(GridTaskWorker.java:1023)
at org.apache.ignite.internal.util.IgniteUtils.wrapThreadLoader(IgniteUtils.java:6596)
at org.apache.ignite.internal.processors.task.GridTaskWorker.result(GridTaskWorker.java:1023)
at org.apache.ignite.internal.processors.task.GridTaskWorker.onResponse(GridTaskWorker.java:841)
at org.apache.ignite.internal.processors.task.GridTaskProcessor.processJobExecuteResponse(GridTaskProcessor.java:996)
at org.apache.ignite.internal.processors.job.GridJobWorker.finishJob(GridJobWorker.java:843)
at org.apache.ignite.internal.processors.job.GridJobWorker.finishJob(GridJobWorker.java:745)
at org.apache.ignite.internal.processors.job.GridJobWorker.execute0(GridJobWorker.java:608)
at org.apache.ignite.internal.processors.job.GridJobWorker.body(GridJobWorker.java:479)
at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: class org.apache.ignite.IgniteException: HelloWorld
at org.apache.ignite.internal.processors.job.GridJobWorker.initialize(GridJobWorker.java:447)
at org.apache.ignite.internal.processors.job.GridJobProcessor.processJobExecuteRequest(GridJobProcessor.java:1108)
at org.apache.ignite.internal.processors.job.GridJobProcessor$JobExecutionListener.onMessage(GridJobProcessor.java:1894)
at org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1082)
at org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:710)
at org.apache.ignite.internal.managers.communication.GridIoManager.access$1700(GridIoManager.java:102)
at org.apache.ignite.internal.managers.communication.GridIoManager$5.run(GridIoManager.java:673)
... 3 more
Caused by: class org.apache.ignite.IgniteCheckedException: HelloWorld
at org.apache.ignite.internal.util.IgniteUtils.unmarshal(IgniteUtils.java:9785)
at org.apache.ignite.internal.processors.job.GridJobWorker.initialize(GridJobWorker.java:428)
... 9 more
Caused by: class org.apache.ignite.binary.BinaryInvalidTypeException: HelloWorld
at org.apache.ignite.internal.binary.BinaryContext.descriptorForTypeId(BinaryContext.java:689)
at org.apache.ignite.internal.binary.BinaryUtils.doReadClass(BinaryUtils.java:1480)
at org.apache.ignite.internal.binary.BinaryUtils.doReadClass(BinaryUtils.java:1418)
at org.apache.ignite.internal.binary.BinaryReaderExImpl.readClass(BinaryReaderExImpl.java:370)
at org.apache.ignite.internal.binary.BinaryFieldAccessor$DefaultFinalClassAccessor.readFixedType(BinaryFieldAccessor.java:828)
at org.apache.ignite.internal.binary.BinaryFieldAccessor$DefaultFinalClassAccessor.read(BinaryFieldAccessor.java:639)
at org.apache.ignite.internal.binary.BinaryClassDescriptor.read(BinaryClassDescriptor.java:829)
at org.apache.ignite.internal.binary.BinaryReaderExImpl.deserialize0(BinaryReaderExImpl.java:1498)
at org.apache.ignite.internal.binary.BinaryReaderExImpl.deserialize(BinaryReaderExImpl.java:1450)
at org.apache.ignite.internal.binary.BinaryUtils.doReadObject(BinaryUtils.java:1634)
at org.apache.ignite.internal.binary.BinaryReaderExImpl.readObject(BinaryReaderExImpl.java:1124)
at org.apache.ignite.internal.processors.closure.GridClosureProcessor$C4V2.readBinary(GridClosureProcessor.java:2230)
at org.apache.ignite.internal.binary.BinaryClassDescriptor.read(BinaryClassDescriptor.java:819)
at org.apache.ignite.internal.binary.BinaryReaderExImpl.deserialize0(BinaryReaderExImpl.java:1498)
at org.apache.ignite.internal.binary.BinaryReaderExImpl.deserialize(BinaryReaderExImpl.java:1450)
at org.apache.ignite.internal.binary.GridBinaryMarshaller.deserialize(GridBinaryMarshaller.java:298)
at org.apache.ignite.internal.binary.BinaryMarshaller.unmarshal0(BinaryMarshaller.java:100)
at org.apache.ignite.marshaller.AbstractNodeNameAwareMarshaller.unmarshal(AbstractNodeNameAwareMarshaller.java:82)
at org.apache.ignite.internal.util.IgniteUtils.unmarshal(IgniteUtils.java:9779)
... 10 more
Caused by: java.lang.ClassNotFoundException: HelloWorld
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.apache.ignite.internal.util.IgniteUtils.forName(IgniteUtils.java:8393)
at org.apache.ignite.internal.MarshallerContextAdapter.getClass(MarshallerContextAdapter.java:185)
at org.apache.ignite.internal.binary.BinaryContext.descriptorForTypeId(BinaryContext.java:680)
... 28 more

Answer 1

For using ignite as a cache for cassandra database, at first, it's better to read these documentations:
Ignite With Apache Cassandra
BaseConcepts
Examples
Now, you can run ignite with any nodes you want, but you must consider two things:
first, you must run ignite with the configured xml for cassandra
connection
second, you must add dependent jar files for running
ignite-cassandra
For simple cassandra configuration, you can use this and for generate dependency jar files for your code, you can use maven-dependency-plugin with copy-dependency goal to generate jar files in the dependency folder of your target files.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<id>copy</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
</execution>
</executions>
</plugin>
After compiling your code, you can add dependency folder to the path of ignite libs or add to the USER_LIBS path. Now, you need to implement your java code. For this, I use the class PersonId and configure it with this xml. [hint: you need to add your project jar file to the ignite path.]
Now, you can run your ignite and after that run your code and see the result.

Answer 2

For using Cassandra as a persistent store you don't need CassandraAdminCredentials cause it's just used for tests. Example configuration you can look at https://apacheignite-mix.readme.io/docs/ignite-with-apache-cassandra and https://apacheignite-mix.readme.io/docs/base-concepts
CassandraAdminCredentials class is only available in Ignite unit tests sources. If you want to use it you should build Ignite from source code. Such way, it will create ignite-cassandra-tests-${project.version}.zip where jar may find jar file containing all the test classes.