zone1511 commented on issue #978: Purpose of tag method in AbstractSpan
URL: 
https://github.com/apache/incubator-skywalking/issues/978#issuecomment-375503420
 
 
   Does the before and after method interceptor guarantee to run on same thread?
   What is the original purpose of Tag in span?
   
   Sent from my iPhone
   
   > On 23 Mar 2018, at 8:14 AM, 吴晟 Wu Sheng <notificati...@github.com> wrote:
   > 
   > Yes, that depends how does your intercepted object use in thread? if no 
concurrency situation, you can use dynamic field to propagate. If has, use your 
own thread local, or proposal to add runtime context for TracingContext.
   > 
   > —
   > You are receiving this because you authored the thread.
   > Reply to this email directly, view it on GitHub, or mute the thread.
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