[GitHub] lijialing888 opened a new issue #746: How to read span tag in elasticsearch?

[GitBox <gi...@apache.org>]

lijialing888 opened a new issue #746: How to read span tag in elasticsearch?
URL: https://github.com/apache/incubator-skywalking/issues/746
 
 
   Please answer these questions before submitting your issue.
   
   ### What version of sky-walking are you using?
   3.2.6
   
   ### What version of your OS?
   any
   
   ### What version of your JRE?
   8.0
   
   ### What company or project?
   Top 500 company
   
   ### What did you do?
   Hi, I use open-tracing API add some tag to my span:
   ```java
   Tracer tracer = new SkywalkingTracer();
   try (ActiveSpan span = tracer.buildSpan("service").startActive()) {
       span.setTag("tenant", "T3");
       span.setTag("id", input);
       // Do things.
       Thread.sleep(Math.round(50 * Math.random()));
   } 
   catch (Exception e) {
       // ignore
   }
   ```
   
   I found something like base64 code in sgement index, looks like:
   ```json
   {
       "data_binary": "CgwKCgE0gK2Bgq6s9hoaWggBGPn/oL+OLCCUgKG/jiwyCUplZGlzL2dldEIOMTI3LjAuMC4xOjYzNzlIAVABWAdyEAoHZGIudHlwZRIFUmVkaXNyFQoMZGIuc3RhdGVtZW50EgVnZXQgNxpeCAIYrYChv44sIMWAob+OLCj///////////8BOAJIAVABWAdyEAoHZGIudHlwZRIFUmVkaXNyJwoMZGIuc3RhdGVtZW50EhdzZXQgNzAuNjAxOTc3NzI5MzUxMzQ5MxplEP///////////wEY7/+gv44sIMmAob+OLCgCUANYDnIwCgN1cmwSKWh0dHA6Ly9sb2NhbGhvc3Q6MTgwODAvYmVuY2htYXJrLTEvdXNlci83chIKC2h0dHAubWV0aG9kEgNHRVQg////////////ASgB",
       "time_bucket": 201801120907
     }
   ```
   
   I want do some analyze on the spans. How could I read it? Is there any API can do it?
   

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