ni-ze opened a new issue #7323:
URL: https://github.com/apache/pulsar/issues/7323
Those are my data:
```
{"traceId":"912677f3-bbdc-46b9-83e8-28b9dc53b62a","parentId":"912677f3-bbdc-46b9-83e8-28b9dc53b62a","id":"0977e19c-3581-484f-9426-fd9391c64534","kind":"CLIENT","name":"http:/echo/auto-test-1","timestamp":1591151294760000,"duration":5000,"localEndpoint":{"serviceName":"consumer-demo","ipv4":"10.64.35.49","port":18083},"remoteEndpoint":{"serviceName":"provider-demo","ipv4":"10.64.35.49","port":18081},"annotations":[{"timestamp":1591151294765000,"value":"{\"name\":\"test\",\"value\":\"123\"}"}],"tags":{"custom.test":"123","http.host":"10.64.35.49","http.method":"GET","http.path":"/echo/auto-test-1","http.url":"http://10.64.35.49:18081/echo/auto-test-1","localInterface":"doWork","remoteInterface":"/echo/auto-test-1","resultStatus":"200","spring.instance_id":"10.64.35.49:consumer-demo:18083"}}
{"traceId":"912677f3-bbdc-46b9-83e8-28b9dc53b62a","id":"912677f3-bbdc-46b9-83e8-28b9dc53b62a","kind":"SERVER","name":"do-work","timestamp":1591151294757000,"duration":8891,"localEndpoint":{"serviceName":"consumer-demo","ipv4":"10.64.35.49","port":18083},"annotations":[{"timestamp":1591151294766000,"value":"{\"name\":\"test\",\"value\":\"123\"}"}],"tags":{"class":"ScheduledProviderDemo","custom.test":"123","localInterface":"doWork","method":"doWork","resultStatus":"200","spring.instance_id":"10.64.35.49:consumer-demo:18083"}}
```
I want to find them out from stream use pulsar functions, which means I must
find out the message with same traceId. so, here is question, how to realize
use pulsar functions?
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