please try againinclude error,path:/comp/news/category?compId=news_category-1505377390979 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 [10.20.9.179:20881, 10.20.10.75:20881] (2/16) from the registry BJ-ZW-PAAS-MIDD-ZK-NODE4.online.local:2181 on the consumer 10.20.10.239 using the dubbo version 2.6.0. Last error is: Invoke remote method timeout. method: findRootCategoryList, provider: dubbo://10.20.10.75:20881/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=5000&dispatcher=connection&dubbo=2.6.0&generic=false&interface=cn.ce.ebiz.info.service.InfoCategoryService&iothreads=4&loadbalance=leastactive&logger=slf4j&methods=update,updatePostion,checkIsExists,getFirstCategoryId,getBreadcrumbData,findTreeListInAllCategory,findInfocategoryListByType,add,getInfoCategoryById,findTreeListInAll,getInfoCountByCateId,updateMove,findRootCategoryByChildren,getInfocategoryByName,delete,findAsyncInfoCategoryListWithoutInfoCount,findByFrontCategoryPagination,findCommCateTreeExclusivedIds,updateShowStateMobile,findAll,findRootCategoryList,findCategoryListById,findTreeListByType,getInfoCategoryNoChildrenById,getTopInfoCategory,findFrontChildren,findTreeListExclusivedIds,getChildrenIdsByCateId,updateShowState,findInfocategoryListLimitLevel,findAsyncInfoCategoryList&owner=ebiz&payload=15728640&pid=6504&protocol=dubbo®ister.ip=10.20.10.239&remote.timestamp=1591005772984&revision=1.0.0-SNAPSHOT&side=consumer&timeout=1500×tamp=1591005942251, cause: Waiting server-side response timeout by scan timer. start time: 2020-06-03 10:06:03.713, end time: 2020-06-03 10:06:05.216, client elapsed: 1 ms, server elapsed: 1502 ms, timeout: 1500 ms, request: Request [id=14242700, version=2.0.0, twoway=true, event=false, broken=false, data=RpcInvocation [methodName=findRootCategoryList, parameterTypes=[class java.lang.Boolean], arguments=[true], attachments={consumerApplicationName=front, tenantId=17042, mobileRunning=true, pcRunning=true, appId=3, currentDomain=http://www.jiuhezhiye.com, uniteType=100001, productMode=true, sourceApp=1, consumerHostIp=10.20.9.179, viewType=1, interface=cn.ce.ebiz.info.service.InfoCategoryService, consumerOsName=Linux, sw3=, version=0.0.0, formal=true, useViewType=true, path=cn.ce.ebiz.info.service.InfoCategoryService, timeout=1500, consumerJavaRuntimeVersion=1.7.0_79-b15, consumerOsVersion=3.10.0-327.el7.x86_64}]], channel: /10.20.10.239:48829 -> /10.20.10.75:20881