Still getting 'rsync error: error in rsync protocol data stream (code 12)' – Going to OBSD 3.8
A while back I recounted an error running rsync as a part of my qdb.pl backup script on ender. When I run the script manually, it runs fine, but when it runs as a cron job, it fails somewhat meaninglessly with:
rsync error: error in rsync protocol data stream (code 12)
jane, the rsync server I was running against, is running an older version of rsync, 2.6.3, with protocol version 28. As I understand it from the rsync list, this older version sends back meaningless error messages sometimes, so it’s hard to debug the problem.
The latest version of rsync is in the OpenBSD ports tree, but jane is running OpenBSD 3.7 RELEASE, and I really don’t want to hassle with moving to 3.7 STABLE. Thus, I’ve opted instead to go ahead and upgrade to OpenBSD 3.8. I need to rehearse the upgrade anyway, since I’ll be doing it on ender soon enoguh.
UPDATE: I did the upgrade; same error. I have to investigate further.
'rsync error: error in rsync protocol data stream (code 12)' using qdb.pl on OpenBSD
Recently, I recounted my experience installing and running my qdb.pl script on OpenBSD 3.7. Though the backup runs worked fine from the console, they failed strangely when run from crontab. I encountered the following error message from ender:
FINISHED --02:00:05--
Downloaded: 35,394 bytes in 1 files
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: error in rsync protocol data stream (code 12) at /usr/ports/net/rsync/w-rsync-2.6.6/rsync-2.6.6/io.c(434)
Error preparing server jane for backup:
rsync command [/usr/local/bin/rsync --links --times -z --rsh="ssh -q -A" "/tmp/aE6jFxDCgD/qdb_run.pl" "ender_backup@jane:~/qdb_run.pl"] exited with error 3072
It’s failed during the step in the backup process where qdb.pl is uploading a Perl script to jane, which will clear out any previous temp files and determine the most recent snapshot, etc. This upload seems to be failing, with the meaningless error:
rsync error: error in rsync protocol data stream (code 12)
I’ve rumaged around the ‘net, and it appears this is due to a protocol version mismatch. Indeed, jane is running rsync version 2.6.3, protocol version 28, while ender and bonzo are at 2.6.6, protocol version 29. But, bonzo has been working fine for months, and ender works fine when I run the backup script from the shell.
I could upgrade to the rsync-2.6.6 version, but to do that I’d have to download and install the ports tree on jane, then advance the kernel, username, and ports tree to 3.7-STABLE, which is a huge multi-day pain in the ass.
I’m going to give it one more chance to run correctly; if it still doesn’t work I’ll break down and upgrade jane to OpenBSD 3.8, which includes rsync-2.6.6 in the RELEASE branch, plus I need to do a practice run before I upgrade ender.