Telegraf Tail from multiple files

I’m running one instance of telegraf reading from 8 files with inputs.tail
I missing points on influx side but I only have some timeout erroros in the log.

What happen with points when a log like this apper
2017-03-30T06:27:02Z E! InfluxDB Output Error: {“error”:“timeout”}

I’m writing in 5000 batchs
2017-03-30T06:28:23Z D! Output [influxdb] wrote batch of 5000 metrics in 4.224777397s

There are near 10k series per min

How can I troubleshoting this? Could be a better aprouch running multiple telegraf instances?

Thanks in advance!
Sorry for my engish