include error,path:/comp/news/category?compId=news_category-15151549202347446 cause:org.springframework.web.util.NestedServletException: Request processing failed; nested exception is com.alibaba.dubbo.rpc.RpcException: Failed to invoke the method findRootCategoryList in the service cn.ce.ebiz.info.service.InfoCategoryService. Tried 2 times of the providers [192.168.69.190:20881, 192.168.79.52:20881] (2/18) from the registry BJ-ZW-PAAS-MIDD-ZK-NODE4.online.local:2181 on the consumer 172.20.4.33 using the dubbo version 2.6.0. Last error is: Failed to invoke remote method: findRootCategoryList, provider: dubbo://192.168.79.52:20881/cn.ce.ebiz.info.service.InfoCategoryService?anyhost=true&application=front&check=false&default.check=false&default.reference.filter=cecontext&default.retries=1&default.service.filter=cecontext&default.timeout=1000&dispatcher=message&dubbo=2.6.0&generic=false&interface=cn.ce.ebiz.info.service.InfoCategoryService&loadbalance=roundrobin&methods=update,updatePostion,checkIsExists,getFirstCategoryId,getBreadcrumbData,findInfocategoryListByType,getInfoCategoryById,add,findTreeListInAll,getInfoCountByCateId,updateMove,findRootCategoryByChildren,getInfocategoryByName,delete,findAsyncInfoCategoryListWithoutInfoCount,findByFrontCategoryPagination,findCommCateTreeExclusivedIds,updateShowStateMobile,findAll,findRootCategoryList,findTreeListByType,getInfoCategoryNoChildrenById,getTopInfoCategory,findFrontChildren,findTreeListExclusivedIds,getChildrenIdsByCateId,updateShowState,findInfocategoryListLimitLevel,findAsyncInfoCategoryList&owner=ebiz&pid=5906®ister.ip=172.20.4.33&remote.timestamp=1527214570338&revision=1.0.0-SNAPSHOT&side=consumer&timeout=1000×tamp=1527276140169, cause: com.alibaba.dubbo.remoting.ExecutionException: class com.alibaba.dubbo.remoting.transport.dispatcher.message.MessageOnlyChannelHandler error when process received event . com.alibaba.dubbo.remoting.ExecutionException: class com.alibaba.dubbo.remoting.transport.dispatcher.message.MessageOnlyChannelHandler error when process received event . at com.alibaba.dubbo.remoting.transport.dispatcher.message.MessageOnlyChannelHandler.received(MessageOnlyChannelHandler.java:44) at com.alibaba.dubbo.remoting.exchange.support.header.HeartbeatHandler.received(HeartbeatHandler.java:88) at com.alibaba.dubbo.remoting.transport.MultiMessageHandler.received(MultiMessageHandler.java:43) at com.alibaba.dubbo.remoting.transport.AbstractPeer.received(AbstractPeer.java:136) at com.alibaba.dubbo.remoting.transport.netty.NettyHandler.messageReceived(NettyHandler.java:90) at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:88) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296) at com.alibaba.dubbo.remoting.transport.netty.NettyCodecAdapter$InternalDecoder.messageReceived(NettyCodecAdapter.java:147) at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Thread.java:714) at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:949) at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1371) at com.alibaba.dubbo.remoting.transport.dispatcher.message.MessageOnlyChannelHandler.received(MessageOnlyChannelHandler.java:42) ... 24 more