lhttanner opened a new issue #1850: Some questions about the agent consume TraceSegment URL: https://github.com/apache/incubator-skywalking/issues/1850 Please answer these questions before submitting your issue. - Why do you submit this issue? - [x] Question or discussion - [ ] Bug - [ ] Requirement - [x] Feature or performance improvement ___ ### Question - What do you want to know? 1、Why configured 1 number of consumer threads in org.apache.skywalking.apm.agent.core.remote.TraceSegmentServiceClient.boot()? can i largen this ？ （TraceSegmentServiceClient的boot方法第70行，carrier.consume(this, 1); 这个消费者的线程为什么配置的是1，有什么原因么？我可以修改变大这个参数么？） 2、In my agent log file（ skywalking.log） debug a lot of “DEBUG 2018-10-29 09:25:46 TraceSegmentServiceClient : One trace segment has been abandoned, cause by buffer is full. ” How can i optimize configured （在其中一个项目忙时的时候agent的日志里有打印很多的trace segment 被丢弃，buffer满了，有没有可以优化的配置，防止数据丢失） 3、WARN More than 300 spans required to create ，can i configured 1000？（某些方法超过了300个spans，我可以配置到1000么？） ___ ### Bug - Which version of SkyWalking, OS and JRE? 5.0.0-RC-SNAPSHOT jdk1.8 - Which company or project? - What happen? 1、DEBUG 2018-10-29 09:25:46 TraceSegmentServiceClient : One trace segment has been abandoned, cause by buffer is full. 2、WARN 2018-10-30 09:33:18 TracingContext : More than 300 spans required to create java.lang.RuntimeException: Shadow tracing context. Thread dump at org.apache.skywalking.apm.agent.core.context.TracingContext.isLimitMechanismWorking(TracingContext.java:528) at org.apache.skywalking.apm.agent.core.context.TracingContext.access$100(TracingContext.java:56) at org.apache.skywalking.apm.agent.core.context.TracingContext$7.doProcess(TracingContext.java:339) at org.apache.skywalking.apm.agent.core.dictionary.PossibleFound.doInCondition(PossibleFound.java:50) at org.apache.skywalking.apm.agent.core.context.TracingContext.createExitSpan(TracingContext.java:335) at org.apache.skywalking.apm.agent.core.context.ContextManager.createExitSpan(ContextManager.java:124) at org.apache.skywalking.apm.plugin.jdbc.mysql.PreparedStatementExecuteMethodsInterceptor.beforeMethod(PreparedStatementExecuteMethodsInterceptor.java:52) at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:82) at com.mysql.jdbc.JDBC42PreparedStatement.execute(JDBC42PreparedStatement.java) at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:2931) at com.alibaba.druid.filter.FilterAdapter.preparedStatement_execute(FilterAdapter.java:1058) at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:2929) at com.alibaba.druid.filter.FilterEventAdapter.preparedStatement_execute(FilterEventAdapter.java:440) at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:2929) at com.alibaba.druid.proxy.jdbc.PreparedStatementProxyImpl.execute(PreparedStatementProxyImpl.java:131) at com.alibaba.druid.pool.DruidPooledPreparedStatement.execute(DruidPooledPreparedStatement.java:493) at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:46) at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:74) at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:50) at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117) at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76) at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:198) at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:185) at sun.reflect.GeneratedMethodAccessor707.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:434) at com.sun.proxy.$Proxy24.insert(Unknown Source) at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:279) at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:57) at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53) at com.sun.proxy.$Proxy61.insert(Unknown Source) at com.ctzj.smt.bss.data.service.AbstractBasePartitionService.lambda$insert$0(AbstractBasePartitionService.java:24) at com.ctzj.smt.bss.data.persist.PersistDataAccessTemplate.execute(PersistDataAccessTemplate.java:93) at com.ctzj.smt.bss.data.persist.AbstractPersistBaseService.executePartition(AbstractPersistBaseService.java:20) at com.ctzj.smt.bss.data.service.AbstractBasePartitionService.insert(AbstractBasePartitionService.java:24) at com.ctzj.smt.bss.order.base.service.AbstractOrderPartitionBaseService.modify(AbstractOrderPartitionBaseService.java:41) at com.ctzj.smt.bss.order.base.service.impl.OrderItemRelBaseServiceImpl.modOrderItemRelDtoList(OrderItemRelBaseServiceImpl.java:45) at com.ctzj.smt.bss.order.core.service.impl.CustomerOrderSaveServiceImpl.modCustomerOrder(CustomerOrderSaveServiceImpl.java:153) at sun.reflect.GeneratedMethodAccessor1120.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) at com.sun.proxy.$Proxy120.modCustomerOrder(Unknown Source) at com.ctzj.smt.bss.order.receive.service.dubbo.impl.CustOrderDubboServiceImpl.creatCustOrder(CustOrderDubboServiceImpl.java:104) at com.alibaba.dubbo.common.bytecode.Wrapper49.invokeMethod(Wrapper49.java) at com.alibaba.dubbo.rpc.proxy.javassist.JavassistProxyFactory$1.doInvoke(JavassistProxyFactory.java:46) at com.alibaba.dubbo.rpc.proxy.AbstractProxyInvoker.invoke(AbstractProxyInvoker.java:72) at com.alibaba.dubbo.rpc.protocol.InvokerWrapper.invoke(InvokerWrapper.java:53) at com.alibaba.dubbo.rpc.filter.ExceptionFilter.invoke(ExceptionFilter.java:64) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.monitor.esb.EsbMonitorFilter.invoke$original$dGUHaOpE(EsbMonitorFilter.java:30) at com.alibaba.dubbo.monitor.esb.EsbMonitorFilter.invoke$original$dGUHaOpE$accessor$2GBSpsTB(EsbMonitorFilter.java) at com.alibaba.dubbo.monitor.esb.EsbMonitorFilter$auxiliary$mg9WcYKN.call(Unknown Source) at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:93) at com.alibaba.dubbo.monitor.esb.EsbMonitorFilter.invoke(EsbMonitorFilter.java) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.rpc.filter.TimeoutFilter.invoke(TimeoutFilter.java:42) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.rpc.protocol.dubbo.filter.TraceFilter.invoke(TraceFilter.java:78) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.rpc.filter.ContextFilter.invoke(ContextFilter.java:60) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.rpc.filter.GenericFilter.invoke(GenericFilter.java:132) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.rpc.filter.ClassLoaderFilter.invoke(ClassLoaderFilter.java:38) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.rpc.filter.EchoFilter.invoke(EchoFilter.java:38) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol$1.reply(DubboProtocol.java:109) at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.handleRequest(HeaderExchangeHandler.java:88) at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.received(HeaderExchangeHandler.java:174) at com.alibaba.dubbo.remoting.transport.DecodeHandler.received(DecodeHandler.java:52) at com.alibaba.dubbo.remoting.transport.dispatcher.ChannelEventRunnable.run(ChannelEventRunnable.java:82) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) ___ ### Requirement or improvement - Please describe about your requirements or improvement suggestions.
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