Random errors on VM ZFS replication

[frankz]

Hello everyone and best wishes ...

I wanted to ask that I often get errors in VM replication

Command 'zfs snapshot zshare/vm-123-disk-0@__replicate_123-0_1640524058__' failed: got timeout

Could anyone give me some information on what to check? I don't think this is network latency, in my opinion.

 

[ca_maer]

We have the same problem. Network monitoring tool show no issue. Source and target machine are always available and responding yet we get "got timeout" error intermittently for no apparent reason.

 

[frankz]

We have the same problem. Network monitoring tool show no issue. Source and target machine are always available and responding yet we get "got timeout" error intermittently for no apparent reason.

Hi, I have analyzed the problem for a long time, I believe after various and careful analysis that the problem is the snapshot that is performed by the system. In my specific case, I have 1TB mechanical disks in ZFS, I assume that when replication is launched depending on the load of the VM it is slowed down so it goes into timeout. I have a dedicated Nic for the purpose and there are no latencies or anything else. I would like to know if there is a parameter that refers to the timeout values.