For reasons I don't quite understand, Ignite doesn't include the web server dependency. You need to add it yourself.
I wrote a blog (with a GitHub repo) explaining how to do it: https://www.gridgain.com/resources/blog/integrating-prometheus-gridgain-or-apache-ignite On Wed, 23 Jul 2025 at 16:39, Charlin S <charli...@hotelhub.com> wrote: > Hi > I am working on exporting traces to prometheus and getting below error > while starting server node. > org.springframework.beans.factory.CannotLoadBeanClassException: Cannot > find class [io.prometheus.client.exporter.HTTPServer] for bean with name > 'httpServer' defined in URL > [file:/apache-ignite-2.16.0-bin/config/test_config.xml]; nested exception > is java.lang.ClassNotFoundException: > io.prometheus.client.exporter.HTTPServer > > XML bean as following > <?xml version="1.0" encoding="UTF-8"?> > <beans xmlns="http://www.springframework.org/schema/beans"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xmlns:util="http://www.springframework.org/schema/util"; > xsi:schemaLocation="http://www.springframework.org/schema/beans > > http://www.springframework.org/schema/beans/spring-beans.xsd > http://www.springframework.org/schema/util > > http://www.springframework.org/schema/util/spring-util.xsd";> > <bean id="httpServer" class="io.prometheus.client.exporter.HTTPServer"> > <constructor-arg type="java.lang.String" value="127.0.0.10"/> > <constructor-arg type="int" value="1234"/> > <constructor-arg type="boolean" value="true"/> > </bean> > > <bean id="opencensusWrapper" > class="org.springframework.beans.factory.config.MethodInvokingBean"> > <property name="staticMethod" > > value="io.opencensus.exporter.stats.prometheus.PrometheusStatsCollector.createAndRegister"/> > </bean> > <bean class="org.apache.ignite.configuration.IgniteConfiguration"> > <property name="clientConnectorConfiguration"> > <bean > class="org.apache.ignite.configuration.ClientConnectorConfiguration"> > <property name="port" value="10900"/> > </bean> > </property> > <property name="clientMode" value="false"/> > <property name="clientFailureDetectionTimeout" value="120000"/> > <property name="igniteInstanceName" value="StaticCacheGrid"/> > <property name="longQueryWarningTimeout" value="4000"/> > <property name="failureDetectionTimeout" value="120000"/> > <property name="localHost" value="127.0.0.10"/> > <property name="segmentationPolicy" value="RESTART_JVM"/> > <property name="segmentCheckFrequency" value="20000"/> > <property name="segmentationResolveAttempts" value="10"/> > <property name="discoverySpi"> > <bean class="org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi"> > <property name="localPort" value="57800"/> > <property name="ipFinder"> > <bean > class="org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder"> > <property name="addresses"> > <list> > <value>127.0.0.10:57800</value> > </list> > </property> > </bean> > </property> > </bean> > </property> > <property name="metricsUpdateFrequency" value="1000"/> > <property name="metricExporterSpi"> > <list> > <bean > class="org.apache.ignite.spi.metric.opencensus.OpenCensusMetricExporterSpi"> > <property name="period" value="1000"/> > </bean> > </list> > </property> > <property name="dataStorageConfiguration"> > <bean > class="org.apache.ignite.configuration.DataStorageConfiguration"> > <property name="defaultDataRegionConfiguration"> > <bean > class="org.apache.ignite.configuration.DataRegionConfiguration"> > <property name="name" value="Common_Data_Region"/> > <property name="initialSize" value="#{1L * 1024 * > 1024 * 1024}"/> > <property name="maxSize" value="#{8L * 1024 * 1024 > * 1024}"/> > </bean> > </property> > </bean> > </property> > <property name="communicationSpi"> > <bean > class="org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi"> > <property name="sharedMemoryPort" value="-1"/> > <property name="localPort" value="57905"/> > </bean> > </property> > </bean> > </beans> > > Thanks & Regards, > Charlin > >
