I see that error repeated non-stop during the time a file copy is going on. Reassembly error, protocol TCP: New fragment overlaps old data (retransmission?) I used Wireshark on one of the boxes and saw this: I've tested the IO subsytem on both servers and the SSDs inside them can read/write at about 550MB/s. When I copy a 15, 30, 50 gig file between the two servers, I'll get about 450-500MB/s one way but copying the same file back in the other direction, speeds will start off around 350-400MB/s but quickly fall back to 150+MB/s. I edited the 'hosts' file on each server and entered the host name and 10Gbps IP address for the other box. Both servers also have a 1Gbps NIC that was active the entire time. 5 meter DAC attaching both servers directly. Tried Mellanox 10Gbps cards (Mellanox DAC) and Intel 10Gbps NICs (Intel branded DAC), no switch. I have two servers, both running Linux Mint 19.3. Don't have enough points to post a picture so here's what's happening.
0 kommentar(er)
