On 2017-07-20 20:13, Tim Evans wrote:
On 07/17/2017 12:21 AM, Craig Barratt wrote:
When the tar backup appears to be stalled, please do the following:
OK, full backup has been running since 11pm last night, and appears
hung.
* run ps auxww (options might vary based on which server OS you are
running), and find the relevant backups processes: BackupPC_dump,
BackupPC_tarExtract, and the corresponding ssh command that runs
the
remote tar.
backuppc 19250 10.4 0.0 397252 15676 ? S Jul19 137:52
/usr/bin/smbclient \\pelican\C$ -U backup -E -d 1 -c tarmode full -Tc
-
* run "strace -p PID" as root, for each number PID listed by ps
above. Please send me the output.
strace -p 19250 (smbclient) never stops output, accumulates rapidly;
some of it is attached.
backuppc 19249 19246 8 Jul19 ? 01:51:40 /usr/bin/perl
/usr/share/BackupPC/bin/BackupPC_tarExtract -h pelican -s C$ -f
strace -p 19249 (tar) generates no output at all:
# cat strace_tar.out
read(0, <detached ...>
Xferlog's last modification date is 9:02am (about 12 hours ago and
about 10 hours since the backup began). Last couple of lines are:
same 644 0/0 11104
Windows/winsxs/x86_netfx-sbs_wminet_utils_dll_31bf3856ad364e35_6.1.7600.16385_none_007147dce7111012/sbs_wminet_utils.dll
same 755 0/0 0
Windows/winsxs/x86_netfx-sbs_wminet_utils_dll_31bf3856ad364e35_6.1.7601.18514_none_02a244dce
There is no line break here on the last line.
It looks like you're backing up files from Windows' side-by-side folder,
which means that a running program or service could be problematic for
CIFS/SMB, causing it to hang until the program releases all copies of
the DLL -- in practical terms, until the program or service is stopped.
Have you checked to make sure nothing is running?
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