jinlongwang opened a new issue #1549: Shadow tracing context. Thread dump error when pressure test URL: https://github.com/apache/incubator-skywalking/issues/1549 Please answer these questions before submitting your issue. - Why do you submit this issue? - [ ] Question or discussion - [x] Bug - [ ] Requirement - [ ] Feature or performance improvement ___ ### Question - What do you want to know? My application provide a http interface and it will query redis. i added skywalking agent to my application. When qps under 2000 everything is fine but when the qps over 2000 i get some exceptions ``` WARN 2018-08-15 19:04:36 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:515) 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:334) 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:330) at org.apache.skywalking.apm.agent.core.context.ContextManager.createExitSpan(ContextManager.java:125) at org.apache.skywalking.apm.plugin.jedis.v2.JedisMethodInterceptor.beforeMethod(JedisMethodInterceptor.java:37) at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:82) at redis.clients.jedis.Jedis.get(Jedis.java) ``` obviously， this http interface can not have to many spans. so what's wrong with it? ___ ### Bug - Which version of SkyWalking, OS and JRE? SkyWalking: `5.0.0-beta2` OS: `CentOS release 6.6 (Final)` JRE: `jdk1.7.0_80` - Which company or project? autohome Inc - What happen? If possible, provide a way for reproducing the error. e.g. demo application, component version. ___ ### Requirement or improvement - Please describe about your requirements or improvement suggestions.
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