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.


-- 
With best regards,
Andrey Repin
Friday, April 17, 2020 13:04:33

Sorry for my terrible english...
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