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  1. ,
    via netty.io by Unknown author

    Needs to add netty-transport-native-epoll with a OS classifier to the classpath, it's not included in netty-all

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via Stack Overflow by Askerly
, 1 year ago
Could not instantiate the Mapper. at cgl.imr.worker.Mapper.<init (Mapper.java:120) at cgl.imr.worker.DaemonWorker.handleMapperRequest(DaemonWorker.java:228)
cgl.imr.base.TwisterException: Could notinstantiate the Mapper. atcgl.imr.worker.Mapper.<init (Mapper.java:120) atcgl.imr.worker.DaemonWorker.handleMapperRequest(DaemonWorker.java:228) at cgl.imr.worker.DaemonWorker.onEvent(DaemonWorker.java:471) at cgl.imr.pubsub.nb.NBPubSubService.onEvent(NBPubSubService.java:154) at cgl.narada.service.qos.impl.QosServiceImpl.routeToEventConsumer(QosServiceImpl.java:938) at cgl.narada.service.qos.impl.QosServiceImpl.manageEventRoutingToDestinations(QosServiceImpl.java:530) at cgl.narada.service.qos.impl.QosServiceImpl.processReceivedEvent(QosServiceImpl.java:424) at cgl.narada.service.qos.impl.CommunicationsService.processDataPackets(CommunicationsService.java:236) at cgl.narada.service.qos.impl.CommunicationsService.processData(CommunicationsService.java:214) at cgl.narada.service.qos.impl.CommunicationsService.handleData(CommunicationsService.java:142) at cgl.narada.transport.TransportHandlerImpl.dataReceived(TransportHandlerImpl.java:516) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.processBuffer(NIOTCPReceiverThread.java:323) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.processBuffer(NIOTCPReceiverThread.java:329) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.processBuffer(NIOTCPReceiverThread.java:329) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.processBuffer(NIOTCPReceiverThread.java:329) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.processBuffer(NIOTCPReceiverThread.java:329) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.processBuffer(NIOTCPReceiverThread.java:329) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.processBuffer(NIOTCPReceiverThread.java:329) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.processBuffer(NIOTCPReceiverThread.java:329) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.processBuffer(NIOTCPReceiverThread.java:329) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.processBuffer(NIOTCPReceiverThread.java:329) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.processBuffer(NIOTCPReceiverThread.java:329) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.processBuffer(NIOTCPReceiverThread.java:329) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.readDataFromSocket(NIOTCPReceiverThread.java:247) at cgl.narada.transport.niotcp.NIOTCPReceiverThread.run(NIOTCPReceiverThread.java:196)Caused by: java.lang.ClassNotFoundException: map_reduce.GPMapTask 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.ClassLoader.findSystemClass(ClassLoader.java:1004) at cgl.imr.util.CustomClassLoader.findClass(CustomClassLoader.java:102) at cgl.imr.util.CustomClassLoader.loadClass(CustomClassLoader.java:129) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348)