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Weird rsync error message, initial report -- unable to reproduce faithfully yet

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clacke 2015-05-22 19:09:30 +00:00 • committed by admin
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### Please describe the problem.
This is a weird one. I'm getting rsync `protocol version mismatch -- is your shell clean?` on a particular file.
I have tried to reproduce it but not been able.
* First time it happened, I went to the problem repo and did a `get`, which worked, destroying the evidence. "Luckily", this happened again a few days later.
* I thought maybe it was because there was a partial transfer in `.git/annex/tmp` with some specific characteristics. Nope, if I remove the file in `tmp` the problem remains.
* I made another clone think it was the problem repo, transferred the file to that repo, no problem. Dropped it, pointed everything back to the original bad repo. Still bad.
* Both sides are running `rsync version 3.1.0 protocol version 31`.
### What steps will reproduce the problem?
Working on it. But I want to put the preliminaries here, in case someone else has seen this.
### What version of git-annex are you using? On what operating system?
Both sides are running `git-annex version: 5.20150508-g883d57f`, on Ubuntu 14.04.2 LTS.
### Please provide any additional information below.
[[!format sh """
# If you can, paste a complete transcript of the problem occurring here.
# If the problem is with the git-annex assistant, paste in .git/annex/daemon.log
$ git annex copy --to acozed claes/colt/20150511_174818.jpg
copy claes/colt/20150511_174818.jpg (checking acozed...) (to acozed...)
protocol version mismatch -- is your shell clean?
(see the rsync man page for an explanation)
rsync error: protocol incompatibility (code 2) at compat.c(176) [sender=3.1.1]
rsync failed -- run git annex again to resume file transfer
failed
git-annex: copy: 1 failed
# End of transcript or log.
"""]]