Hi Andrey,

Thanks, I do have some security software running, but the rsync problem persists when it (the security software) is disabled.

Thanks
 - Brent

Can you expand on this?
On 2020-04-17 05:07, Andrey Repin wrote:
Greetings, Brent Epp!

I have a large collection of custom tooling that depends on rsync.  It
used to work very well, but recently, rsync has become highly unstable.
It frequently (dozens of times a day) hangs.  These are rsync executions
where the source and target are both on the same local drive.
Eventually once it times out, it reports:
      rsync: connection unexpectedly closed (0 bytes received so far)
[sender]
      rsync error: error in rsync protocol data stream (code 12) at
io.c(226) [sender=3.1.2]
No changes have recently been made to the tooling.  I just upgraded
cygwin as well, the problem persists.
I'm going to do a clean install of cygwin, but if that doesn't solve
things, what else can I do?
Check for BLODA. Although I'm still suspicious.
All I've seen so far is

rsync error: protocol incompatibility (code 2) at receiver.c(582) 
[receiver=3.1.0]
rsync error: protocol incompatibility (code 2) at io.c(1642) [generator=3.1.0]

this is a link to production VPS. It consistently hangs midway the transfer.
Like it has a clairvoyance, no matter if the upload is 1 file of 100 files,
halfway through it drops, and I have to restart the upload, then it goes to
complete success.



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