janecms opened a new issue #5150:
URL: https://github.com/apache/skywalking/issues/5150
Please answer these questions before submitting your issue.
- Why do you submit this issue?
- [ ] Question or discussion
- [✔️ ] Bug
___
### Bug
SkyWalking:8.0.1
OS: MAC/Linux
JRE: OpenJDK 1.8.0_242/1.8.0_252
- Which company or project?
spring cloud gateway 2.1.5
- What happen?
This problem was not found in the test environment, so I think it may have
something to do with concurrency。
View the Agent local log file。The log content contains ：
`
**java.lang.RuntimeException: Prepare for async repeatedly. Span is already
in async mode.**
at
org.apache.skywalking.apm.agent.core.context.trace.AbstractTracingSpan.prepareForAsync(AbstractTracingSpan.java:301)
at
org.apache.skywalking.apm.plugin.spring.cloud.gateway.v21x.HttpClientFinalizerSendInterceptor.beforeMethod(HttpClientFinalizerSendInterceptor.java:45)
at
org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInterWithOverrideArgs.intercept(InstMethodsInterWithOverrideArgs.java:75)
at
reactor.netty.http.client.HttpClientFinalizer.send(HttpClientFinalizer.java)
at
reactor.netty.http.client.HttpClientFinalizer.send(HttpClientFinalizer.java:44)
at
org.springframework.cloud.gateway.filter.NettyRoutingFilter.filter$original$zQOMXuoX(NettyRoutingFilter.java:128)
at
org.springframework.cloud.gateway.filter.NettyRoutingFilter.filter$original$zQOMXuoX$accessor$17xErV0d(NettyRoutingFilter.java)
at
org.springframework.cloud.gateway.filter.NettyRoutingFilter$auxiliary$JpE5vsrn.call(Unknown
Source)
at
org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInterWithOverrideArgs.intercept(InstMethodsInterWithOverrideArgs.java:85)
at
org.springframework.cloud.gateway.filter.NettyRoutingFilter.filter(NettyRoutingFilter.java)
at
org.springframework.cloud.gateway.handler.FilteringWebHandler$GatewayFilterAdapter.filter(FilteringWebHandler.java:138)
at
org.springframework.cloud.gateway.filter.OrderedGatewayFilter.filter(OrderedGatewayFilter.java:44)
at
org.springframework.cloud.gateway.handler.FilteringWebHandler$DefaultGatewayFilterChain.lambda$filter$0(FilteringWebHandler.java:118)
at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:44)
at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52)
at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52)
at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52)
`
other log in our test env.
`
WARN 2020-07-20 17:29:07:495 reactor-http-epoll-3 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:562)
at
org.apache.skywalking.apm.agent.core.context.TracingContext.createExitSpan(TracingContext.java:323)
at
org.apache.skywalking.apm.agent.core.context.ContextManager.createExitSpan(ContextManager.java:119)
at
org.apache.skywalking.apm.plugin.jedis.v2.JedisMethodInterceptor.beforeMethod(JedisMethodInterceptor.java:38)
`
___
### Requirement or improvement
- I found the issue (5144)
(https://github.com/apache/skywalking/issues/5144),The two mistakes are
similar. I don't know if they are one
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