73 lines
1.6 KiB
Markdown
73 lines
1.6 KiB
Markdown
TDengine Datasource - build by Taosdata Inc. www.taosdata.com
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TDengine backend server implement 2 urls:
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* `/heartbeat` return 200 ok. Used for "Test connection" on the datasource config page.
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* `/query` return data based on input sqls.
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## Installation
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To install this plugin:
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Copy the data source you want to /var/lib/grafana/plugins/. Then restart grafana-server. The new data source should now be available in the data source type dropdown in the Add Data Source View.
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```
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cp -r <tdengine-extrach-dir>/connector/grafana/tdengine /var/lib/grafana/plugins/
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sudo service grafana-server restart
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```
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### Query API
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Example request
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``` javascript
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[{
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"refId": "A",
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"alias": "taosd-memory",
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"sql": "select avg(mem_taosd) from sys.dn where ts > now-5m and ts < now interval(500a)"
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},
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{
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"refId": "B",
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"alias": "system-memory",
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"sql": "select avg(mem_system) from sys.dn where ts > now-5m and ts < now interval(500a)"
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}]
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```
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Example response
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``` javascript
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[{
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"datapoints": [
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[206.488281, 1538137825000],
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[206.488281, 1538137855000],
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[206.488281, 1538137885500],
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[210.609375, 1538137915500],
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[210.867188, 1538137945500]
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],
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"refId": "A",
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"target": "taosd-memory"
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},
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{
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"datapoints": [
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[2910.218750, 1538137825000],
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[2912.265625, 1538137855000],
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[2912.437500, 1538137885500],
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[2916.644531, 1538137915500],
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[2917.066406, 1538137945500]
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],
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"refId": "B",
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"target": "system-memory"
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}]
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```
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### Heartbeat API
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Example request
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``` javascript
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<null> get request
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```
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Example response
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``` javascript
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{
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"message": "Grafana server receive a quest from you!"
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}
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```
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