hi, I'm having trouble understanding some of the Grafana metrics we have a single Nebula importer instance running a history load to our cluster (v3.2.0, 8 nodes). the importer logs a steady rate of ~250k rows/s:

2022/09/13 08:05:02 [INFO] statsmgr.go:89: Tick: Time(290.00s), Finished(71750768), Failed(0), Read Failed(0), Latency AVG(1887us), Batches Req AVG(2043us), Rows AVG(247416.41/s)
2022/09/13 08:05:07 [INFO] statsmgr.go:89: Tick: Time(295.00s), Finished(72978112), Failed(0), Read Failed(0), Latency AVG(1887us), Batches Req AVG(2043us), Rows AVG(247383.40/s)
...

at the same time, a Grafana metric

nebula_storaged_num_add_vertices_rate_60{instanceName=~"$hosts"}

is reporting ~110k rows/s. could someone help interpret this metric pls? thank you!

just curious, in importer, the 250k/s only insert vertices, or actually there're edges as well?

only vertices

what about the batch size in your importer config?

batchSize is 16, but we'll try playing with different metrics. tnx!