[OmniOS-discuss] Failing zfs send / receive

[Chris Nagele]

For one of our products, we run a fairly aggressive snapshot and
backup process. At the moment, it it runs a process that sends
snapshots to both a local and offsite server every 60 seconds for 20
filesystems in ZFS. For the most part it works really well. The issues
is that every once in a while the process will fail when sending the
snapshot to either the local or offsite server.

I assume it is a network issue, but I ran a constant ping and during
the time that it failed there was 0 packet loss. The only hint I have
so far is this in the logs of the remote server:

Dec 26 13:16:18 sl-wdc-backup sshd[7470]: [ID 800047 auth.crit] fatal:
Timeout before authentication for x.x.15.34
Dec 26 14:24:12 sl-wdc-backup sshd[23567]: [ID 800047 auth.crit]
fatal: Timeout before authentication for x.x.15.34
Dec 26 15:14:47 sl-wdc-backup sshd[3481]: [ID 800047 auth.crit] fatal:
Timeout before authentication for x.x.15.34
Dec 26 16:42:41 sl-wdc-backup sshd[11456]: [ID 800047 auth.crit]
fatal: Timeout before authentication for x.x.15.34

Any ideas what could cause this timeout or if it is something I can increase?

Thanks,
Chris