I believe I have found the information you want.
parsing_ns means “parsing_ nanoseconds”.
In your case it just had not been translated for 2μs
[0.9.0] - 2017-11-14 | Query latency is now returned as numeric (ns) instead of string.
Latency is used to keep track of the latency involved in parsing and processing
the query. It also contains information about the time it took to convert the
result into a format(JSON/Protocol Buffer) that the client expects.
Link to =>-github.com/dgraph-io/dgraph/blob/7851bb75ca753e6fe98ad504dc53cc629ed0573a/query/query.go#L92
"server_latency": {
"parsing_ns": 2μs,
"processing_ns": 122μs,
"encoding_ns": 107μs,
}
example
"server_latency": {
"parsing": "101µs",
"processing": "802ms",
"json": "115µs",
"total": "802ms"
}
}
In this link you can see an example translated to μs
https://github.com/dgraph-io/dgraph/blob/master/wiki/content/query-language/index.md#debug
More detail about:
https://github.com/dgraph-io/dgraph/blob/master/posting/notes.txt