I/O Errors due to keepalive timeouts with NVMf RDMA

[Jack Wang]

2017-07-10 9:17 GMT+02:00 Hannes Reinecke <hare at suse.de>:
snip
> Well, this sounds identically to the path_checker problem we're having
> in multipathing (and hch complained about several times).
> There's a rather easy solution to it: don't send keepalives if I/O is
> running, but rather tack it on the most current I/O packet.
> In the end, you only want to know if the link is alive; you don't have
> to transfer any data as such.

We did exactly the same for IBTRS for our heatbeat, :)

Cheers,
Jack
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> Dr. Hannes Reinecke                Teamlead Storage & Networking
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