无法将 ignite 与 cassandra 集成

Question

我无法将 cassandra 与 ignite 集成。我尝试了很多方法，但都没有奏效。

我将可选库添加到 lib 文件夹。但没有结果。当我尝试了 ignite 文档中提供的 example1 时，我得到了类路径错误。

我使用的是 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>

错误信息是

 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]

Answer 1

这不是类路径错误。 Spring 报告说，没有名为 cassandraDataSource 的 bean。从您的配置文件<!-- Cassandra connection settings --> 中的注释来看，并且它下面没有bean定义，看起来您删除了相应的配置部分。

因此，您需要为 Cassandra 配置数据源。更多细节可以参考文档：https://apacheignite-mix.readme.io/docs/ignite-with-apache-cassandra

配置示例：https://apacheignite-mix.readme.io/docs/examples