我无法将cassandra与ignite集成在一起。我尝试了许多方法，但没有一个起作用。
我将可选库添加到lib文件夹中。但是没有结果。当我尝试ignite文档中提供的example1时，我得到了classpath错误。
我正在使用ignite 2.6版和cassandra 3.11.4版
这是我的配置文件
<?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="classpath:org/apache/ignite/tests/cassandra/connection-settings.xml" />
<!-- Persistence settings for 'cache1' -->
<bean id="cache1_persistence_settings" class="org.apache.ignite.cache.store.cassandra.persistence.KeyValuePersistenceSettings">
<constructor-arg type="org.springframework.core.io.Resource" value="classpath:org/apache/ignite/tests/persistence/blob/persistence-settings-1.xml" />
</bean>
<!-- Persistence settings for 'cache2' -->
<bean id="cache2_persistence_settings" class="org.apache.ignite.cache.store.cassandra.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>
错误消息是
bin/ignite.sh /etc/ignite/config/config1.xml
class org.apache.ignite.IgniteException: Failed to instantiate Spring XML application context [springUrl=file:/etc/ignite/config/config1.xml, err=Configuration problem:
Failed to import bean definitions from URL location [classpath:org/apache/ignite/tests/cassandra/connection-settings.xml]
Offending resource: URL [file:/etc/ignite/config/config1.xml]; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [org/apache/ignite/tests/cassandra/connection-settings.xml]; nested exception is java.io.FileNotFoundException: class path resource [org/apache/ignite/tests/cassandra/connection-settings.xml] cannot be opened because it does not exist]
at org.apache.ignite.internal.util.IgniteUtils.convertException(IgniteUtils.java:990)
at org.apache.ignite.Ignition.start(Ignition.java:355)
at org.apache.ignite.startup.cmdline.CommandLineStartup.main(CommandLineStartup.java:301)
Caused by: class org.apache.ignite.IgniteCheckedException: Failed to instantiate Spring XML application context [springUrl=file:/etc/ignite/config/config1.xml, err=Configuration problem: Failed to import bean definitions from URL location [classpath:org/apache/ignite/tests/cassandra/connection-settings.xml]
Offending resource: URL [file:/etc/ignite/config/config1.xml]; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [org/apache/ignite/tests/cassandra/connection-settings.xml]; nested exception is java.io.FileNotFoundException: class path resource [org/apache/ignite/tests/cassandra/connection-settings.xml] cannot be opened because it does not exist]
at org.apache.ignite.internal.util.spring.IgniteSpringHelperImpl.applicationContext(IgniteSpringHelperImpl.java:392)
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:744)
at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:945)
at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:854)
at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:724)
at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:693)
at org.apache.ignite.Ignition.start(Ignition.java:352)
... 1 more
Caused by: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Failed to import bean definitions from URL location [classpath:org/apache/ignite/tests/cassandra/connection-settings.xml]
Offending resource: URL [file:/etc/ignite/config/config1.xml]; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [org/apache/ignite/tests/cassandra/connection-settings.xml]; nested exception is java.io.FileNotFoundException: class path resource [org/apache/ignite/tests/cassandra/connection-settings.xml] cannot be opened because it does not exist
at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:70)
at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:118)
at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:103)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.importBeanDefinitionResource(DefaultBeanDefinitionDocumentReader.java:233)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseDefaultElement(DefaultBeanDefinitionDocumentReader.java:184)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:169)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:142)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:94)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:508)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:392)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:336)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304)
at org.apache.ignite.internal.util.spring.IgniteSpringHelperImpl.applicationContext(IgniteSpringHelperImpl.java:379)
... 9 more
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [org/apache/ignite/tests/cassandra/connection-settings.xml]; nested exception is java.io.FileNotFoundException: class path resource [org/apache/ignite/tests/cassandra/connection-settings.xml] cannot be opened because it does not exist
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:344)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:217)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.importBeanDefinitionResource(DefaultBeanDefinitionDocumentReader.java:227)
... 18 more
Caused by: java.io.FileNotFoundException: class path resource [org/apache/ignite/tests/cassandra/connection-settings.xml] cannot be opened because it does not exist
at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:172)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:330)
... 22 more
Failed to start grid: Failed to instantiate Spring XML application context [springUrl=file:/etc/ignite/config/config1.xml, err=Configuration problem: Failed to import bean definitions from URL location [classpath:org/apache/ignite/tests/cassandra/connection-settings.xml]
Offending resource: URL [file:/etc/ignite/config/config1.xml]; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [org/apache/ignite/tests/cassandra/connection-settings.xml]; nested exception is java.io.FileNotFoundException: class path resource [org/apache/ignite/tests/cassandra/connection-settings.xml] cannot be opened because it does not exist]
答案 0 :(得分：1)
这不是类路径错误。春季报告说，没有名为cassandraDataSource的bean。从配置文件<!-- Cassandra connection settings -->中的注释来看，它下面没有bean定义，看来您删除了相应的配置部分。
因此，您需要为Cassandra配置数据源。您可以参考文档以了解更多详细信息：https://apacheignite-mix.readme.io/docs/ignite-with-apache-cassandra