Go-ipfs: pin slowly between two servers

[godcong]

ServerA and ServerB and ServerC is two computer names.

(1). pin speed slowly in local network:
a data file only added from ServerA
when i used ipfs pin add [data_hash] from ServerA to ServerB , ipfs swarm connect [ServerA_id] to connect ServerA at ServerB.
the local network can transfer a file at speed 100M/s.
but the ipfs pin speed is only RateIn: 1 M/s, i used ipfs stats bw to see it.

(2). ipfs drop data server on pinning:
ServerC and ServerA are in the different countries.
when i used ipfs pin add [data_hash] from ServerA to ServerC , ipfs swarm connect [ServerA_id] to connect ServerA at ServerC.
ServerC alway droped ServerA before it pinned.
so it alway run at speed RateIn: 0 B/s,
because no one has the data file.

when a server is pinning a file.
it need to save a list,who has the file.
1),when a server can't find the file from any one.
it neet to get the file from list.
2),when a server can fild the file from other server.
it neet to add the server info into list for get.

I don't know, what is it doing this now.
so it's only my idea for pin.

ps: I added 300G+ data in every server.

[obo20]

Upgrading to the new 0.4.22-rc1 branch might help with this. There was a nasty bitswap bug that was fixed in 0.4.22 that hampered speeds in the exact manner you're describing.

[godcong]

Upgrading to the new 0.4.22-rc1 branch might help with this. There was a nasty bitswap bug that was fixed in 0.4.22 that hampered speeds in the exact manner you're describing.

yeah, thanks.
i will test in this new version

[Stebalien]

100M/s

Note: A 100 megabit link is 12.5 megabytes per second.

But yeah, as @obo20 says, this will be _really_ slow on 0.4.21.

[godcong]

thanks.
i updated all my machines to the version 0.4.22.
the pin speed looks fine know.