Data model #17
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| Original file line number | Diff line number | Diff line change |
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| title: Data Model | ||
| --- | ||
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| In order to illustrate the tracing data that Zipkin displays, let's relate it to the equivalent information in the Zipkin data model. By comparing these, we see that | ||
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| + inbound and outbound requests are in different spans | ||
| + spans that include `cs` can log an `sa` annotation of where they are going | ||
| + This helps when the destination protocol isn't Zipkin instrumented, such as MySQL. | ||
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| First, we see one trace as shown in the Zipkin trace viewer: | ||
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|  | ||
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| And the same trace in the data model of Zipkin: | ||
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| {% highlight json %} | ||
| [ | ||
| [ | ||
| { | ||
| "traceId": "bd7a977555f6b982", | ||
| "name": "get", | ||
| "id": "bd7a977555f6b982", | ||
| "timestamp": 1458702548467000, | ||
| "duration": 386000, | ||
| "annotations": [ | ||
| { | ||
| "endpoint[": { | ||
| "serviceName": "zipkin-query", | ||
| "ipv4": "192.168.1.2", | ||
| "port": 9411 | ||
| }, | ||
| "timestamp": 1458702548467000, | ||
| "value": "sr" | ||
| }, | ||
| { | ||
| "endpoint": { | ||
| "serviceName": "zipkin-query", | ||
| "ipv4": "192.168.1.2", | ||
| "port": 9411 | ||
| }, | ||
| "timestamp": 1458702548853000, | ||
| "value": "ss" | ||
| } | ||
| ], | ||
| "binaryAnnotations": [] | ||
| }, | ||
| { | ||
| "traceId": "bd7a977555f6b982", | ||
| "name": "get-traces", | ||
| "id": "ebf33e1a81dc6f71", | ||
| "parentId": "bd7a977555f6b982", | ||
| "timestamp": 1458702548478000, | ||
| "duration": 354374, | ||
| "annotations": [], | ||
| "binaryAnnotations": [ | ||
| { | ||
| "key": "lc", | ||
| "value": "JDBCSpanStore", | ||
| "endpoint": { | ||
| "serviceName": "zipkin-query", | ||
| "ipv4": "192.168.1.2", | ||
| "port": 9411 | ||
| } | ||
| }, | ||
| { | ||
| "key": "request", | ||
| "value": "QueryRequest{serviceName=zipkin-query, spanName=null, annotations=[], binaryAnnotations={}, minDuration=null, maxDuration=null, endTs=1458702548478, lookback=86400000, limit=1}", | ||
| "endpoint": { | ||
| "serviceName": "zipkin-query", | ||
| "ipv4": "192.168.1.2", | ||
| "port": 9411 | ||
| } | ||
| } | ||
| ] | ||
| }, | ||
| { | ||
| "traceId": "bd7a977555f6b982", | ||
| "name": "query", | ||
| "id": "be2d01e33cc78d97", | ||
| "parentId": "ebf33e1a81dc6f71", | ||
| "timestamp": 1458702548786000, | ||
| "duration": 13000, | ||
| "annotations": [ | ||
| { | ||
| "endpoint": { | ||
| "serviceName": "zipkin-query", | ||
| "ipv4": "192.168.1.2", | ||
| "port": 9411 | ||
| }, | ||
| "timestamp": 1458702548786000, | ||
| "value": "cs" | ||
| }, | ||
| { | ||
| "endpoint": { | ||
| "serviceName": "zipkin-query", | ||
| "ipv4": "192.168.1.2", | ||
| "port": 9411 | ||
| }, | ||
| "timestamp": 1458702548799000, | ||
| "value": "cr" | ||
| } | ||
| ], | ||
| "binaryAnnotations": [ | ||
| { | ||
| "key": "jdbc.query", | ||
| "value": "select distinct `zipkin_spans`.`trace_id` from `zipkin_spans` join `zipkin_annotations` on (`zipkin_spans`.`trace_id` = `zipkin_annotations`.`trace_id` and `zipkin_spans`.`id` = `zipkin_annotations`.`span_id`) where (`zipkin_annotations`.`endpoint_service_name` = ? and `zipkin_spans`.`start_ts` between ? and ?) order by `zipkin_spans`.`start_ts` desc limit ?", | ||
| "endpoint": { | ||
| "serviceName": "zipkin-query", | ||
| "ipv4": "192.168.1.2", | ||
| "port": 9411 | ||
| } | ||
| }, | ||
| { | ||
| "key": "sa", | ||
| "value": true, | ||
| "endpoint": { | ||
| "serviceName": "spanstore-jdbc", | ||
| "ipv4": "127.0.0.1", | ||
| "port": 3306 | ||
| } | ||
| } | ||
| ] | ||
| }, | ||
| { | ||
| "traceId": "bd7a977555f6b982", | ||
| "name": "query", | ||
| "id": "13038c5fee5a2f2e", | ||
| "parentId": "ebf33e1a81dc6f71", | ||
| "timestamp": 1458702548817000, | ||
| "duration": 1000, | ||
| "annotations": [ | ||
| { | ||
| "endpoint": { | ||
| "serviceName": "zipkin-query", | ||
| "ipv4": "192.168.1.2", | ||
| "port": 9411 | ||
| }, | ||
| "timestamp": 1458702548817000, | ||
| "value": "cs" | ||
| }, | ||
| { | ||
| "endpoint": { | ||
| "serviceName": "zipkin-query", | ||
| "ipv4": "192.168.1.2", | ||
| "port": 9411 | ||
| }, | ||
| "timestamp": 1458702548818000, | ||
| "value": "cr" | ||
| } | ||
| ], | ||
| "binaryAnnotations": [ | ||
| { | ||
| "key": "jdbc.query", | ||
| "val[[ue": "select `zipkin_spans`.`trace_id`, `zipkin_spans`.`id`, `zipkin_spans`.`name`, `zipkin_spans`.`parent_id`, `z[ipkin_spans`.`debug`, `zipkin_spans`.`start_ts`, `zipkin_spans`.`duration` from `zipkin_spans` where `zipkin_spans`.`trace_id` in (?)", | ||
| "endpoint": { | ||
| "serviceName": "zipkin-query", | ||
| "ipv4": "192.168.1.2", | ||
| "port": 9411 | ||
| } | ||
| }, | ||
| { | ||
| "key": "sa", | ||
| "value": true, | ||
| "endpoint": { | ||
| "serviceName": "spanstore-jdbc", | ||
| "ipv4": "127.0.0.1", | ||
| "port": 3306 | ||
| } | ||
| } | ||
| ] | ||
| }, | ||
| { | ||
| "traceId": "bd7a977555f6b982", | ||
| "name": "query", | ||
| "id": "37ee55f3d3a94336", | ||
| "parentId": "ebf33e1a81dc6f71", | ||
| "timestamp": 1458702548827000, | ||
| "duration": 2000, | ||
| "annotations": [ | ||
| { | ||
| "endpoint": { | ||
| "serviceName": "zipkin-query", | ||
| "ipv4": "192.168.1.2", | ||
| "port": 9411 | ||
| }, | ||
| "timestamp": 1458702548827000, | ||
| "value": "cs" | ||
| }, | ||
| { | ||
| "endpoint": { | ||
| "serviceName": "zipkin-query", | ||
| "ipv4": "192.168.1.2", | ||
| "port": 9411 | ||
| }, | ||
| "timestamp": 1458702548829000, | ||
| "value": "cr" | ||
| } | ||
| ], | ||
| "binaryAnnotations": [ | ||
| { | ||
| "key": "jdbc.query", | ||
| "value": "select `zipkin_annotations`.`trace_id`, `zipkin_annotations`.`span_id`, `zipkin_annotations`.`a_key`, `zipkin_annotations`.`a_value`, `zipkin_annotations`.`a_type`, `zipkin_annotations`.`a_timestamp`, `zipkin_annotations`.`endpoint_ipv4`, `zipkin_annotations`.`endpoint_port`, `zipkin_annotations`.`endpoint_service_name` from `zipkin_annotations` where `zipkin_annotations`.`trace_id` in (?) order by `zipkin_annotations`.`a_timestamp` asc, `zipkin_annotations`.`a_key` asc", | ||
| "endpoint": { | ||
| "serviceName": "zipkin-query", | ||
| "ipv4": "192.168.1.2", | ||
| "port": 9411 | ||
| } | ||
| }, | ||
| { | ||
| "key": "sa", | ||
| "value": true, | ||
| "endpoint": { | ||
| "serviceName": "spanstore-jdbc", | ||
| "ipv4": "127.0.0.1", | ||
| "port": 3306 | ||
| } | ||
| } | ||
| ] | ||
| } | ||
| ] | ||
| {% endhighlight %} | ||
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HTTP is also a primary transport