Path /dir/of/dest/ exists, can't receive

[holmesb]

Hi,

Trying my first buttersink using command:
buttersink.py /dir/of/src/ ssh://user@dest_server/dir/of/dest/

[user@src_server]# python /usr/lib/python2.7/site-packages/buttersink/buttersink.py /dir/of/src ssh://user@dest_server/dir/of/dest/
user@src_server's password:
Remote version: {u'btrfs': u'btrfs-progs v4.3.1', u'buttersink': u'0.6.7', u'linux': u'Linux-4.3.3-1.el7.elrepo.x86_64-x86_64-with-redhat-3.8.10-Core'}
measured size (7.317 GiB), estimated size (7.317 GiB)
Optimal synchronization:
7.317 GiB from 1 diffs in btrfs /dir/of/src
7.317 GiB from 1 diffs in TOTAL
Xfer: edab...a1f1 /dir/of/src from None (7.317 GiB)
ERROR: {u'traceback': u' File "/usr/lib/python2.7/site-packages/buttersink/ButterStore.py", line 179, in receive', u'errorType': u'Exception', u'command': u'receive', u'server': True, u'error': u"Path /dir/of/dest exists, can't receive edabab74-824e-ff48-bf2b-7f6a1de0a1f1"}

If I delete the destination path, it complains "S|ERROR: '/dir/of/dest' is not an existing directory". Any ideas?

[AmesCornish]

Are you trying to copy a single snapshot called src, or all the snapshots in the src directory? If the later, you need to change /dir/of/src to /dir/of/src/ in your buttersink command line.

[holmesb]

Single snap. I think I've fixed that now. I was specifying the dir above the snap rather than the snap directory itself. However now failing:

[root@nas03 tmp]# python /usr/lib/python2.7/site-packages/buttersink/buttersink.py /dir/of/source ssh://root@dest_server/dir/of/dest/
root@src_server's password:
Remote version: {u'btrfs': u'btrfs-progs v4.3.1', u'buttersink': u'0.6.7', u'linux': u'Linux-4.3.3-1.el7.elrepo.x86_64-x86_64-with-redhat-3.8.10-Core'}
measured size (7.317 GiB), estimated size (7.317 GiB)
Optimal synchronization:
7.317 GiB from 1 diffs in btrfs /dir/of/source
7.317 GiB from 1 diffs in TOTAL
Xfer: 47f8...1c7b /dir/of/source from None (7.317 GiB)
btrfs send errors
At subvol /dir/of/source
ERROR: failed to dump stream. Broken pipe

ERROR: vars() argument must have dict attribute.

However, the command:

btrfs send -v /dir/of/source | ssh dest_server btrfs receive /dir/of/dest/

works fine:

[root@src_server tmp]# btrfs send -v /dir/of/source | ssh dest_server btrfs receive /dir/of/dest/
At subvol /dir/of/source
root@source_server's password:
At subvol /source_dir
BTRFS_IOC_SEND returned 0
joining genl thread

[AmesCornish]

I'm not able to reproduce the second "Broken pipe" error. I suspect it was a transient network or btrfs error. If this is still a problem for you, could you re-test with buttersink 0.6.8 and send the log (using the --logfile argument)? Thanks!