Options for importing data from Flink to Doris

[smokeriu]

I have a scenario where I need to constantly write data to Doris via Flink. The scenario is not particularly concerned with data consistency, but needs to maximize throughput as much as possible.

I briefly looked at flink-doris-connector's code and found 3 ways to import:

• StreamLoad.
• Batch
• Copy

In particular, Copy, which was not introduced at all before viewing the code. I would like to ask the difference between these modes. Which one is more recommended for my scenario?

Also I found that three formats are supported for import.

• csv
• json
• arrow

I tried to use Arrrow, but the import fails and I can't see why (accessing the error reporting page changes to downloading the binary file. And I can't open it).

Would Arrow be more efficient?