zone1511 commented on issue #978: Purpose of tag method in AbstractSpan
URL: 
https://github.com/apache/incubator-skywalking/issues/978#issuecomment-375496224
 
 
   Need to pass data around before and after method invokation. Does the span a 
go place to store? If not, where to store the temp data appear in the 
before/after method invocation? And what’s the original purpose of tag in span?
   
   Sent from my iPhone
   
   > On 23 Mar 2018, at 7:09 AM, 吴晟 Wu Sheng <notificati...@github.com> wrote:
   > 
   > why do you need gettag in span? can you provide scenario?
   > 
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