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Since somewhere in the Jan 14-18 range my glusterfs georeplication
reports Faulty. Georeplication uses rsync internally, and tracking this
this down leads to an exit code 3 out of rsync.

I have no stacktraces myself, but I found this report about the same
problem:

https://www.spinics.net/lists/gluster-users/msg33568.html

with traces:


strace rsync :

30743 23:34:47 newfstatat(3, "6737", {st_mode=S_IFDIR|0755, st_size=4096, ...}, 
AT_SYMLINK_NOFOLLOW) = 0
30743 23:34:47 newfstatat(3, "6741", {st_mode=S_IFDIR|0755, st_size=4096, ...}, 
AT_SYMLINK_NOFOLLOW) = 0
30743 23:34:47 getdents(3, /* 0 entries */, 131072) = 0
30743 23:34:47 munmap(0x7fa4feae7000, 135168) = 0
30743 23:34:47 close(3)                 = 0
30743 23:34:47 write(2, "rsync: getcwd(): No such file or directory (2)", 46) = 
46
30743 23:34:47 write(2, "\n", 1)        = 1
30743 23:34:47 rt_sigaction(SIGUSR1, {SIG_IGN, [], SA_RESTORER, 
0x7fa4fdf404b0}, NULL, 8) = 0
30743 23:34:47 rt_sigaction(SIGUSR2, {SIG_IGN, [], SA_RESTORER, 
0x7fa4fdf404b0}, NULL, 8) = 0
30743 23:34:47 write(2, "rsync error: errors selecting input/output files, dirs 
(code 3) at util.c(1056) [Receiver=3.1.1]", 96) = 96
30743 23:34:47 write(2, "\n", 1)        = 1
30743 23:34:47 exit_group(3)            = ?
30743 23:34:47 +++ exited with 3 +++


The Changelog of glibc mentions that getcwd has been changed:

  * SECURITY UPDATE: Buffer underflow in realpath()
    - debian/patches/any/cvs-make-getcwd-fail-if-path-is-no-absolute.diff:
      Make getcwd(3) fail if it cannot obtain an absolute path
    - CVE-2018-1000001

and downgrading glibc to (2.23-0ubuntu3) indeed fixes my georeplication
problem. 0ubuntu3 is the latest version that is available in the
repositories, other than 0ubuntu10.

** Affects: rsync
     Importance: Unknown
         Status: Unknown

** Affects: rsync (Ubuntu)
     Importance: Undecided
         Status: Confirmed

-- 
regression in 2.23-0ubuntu10: rsync in glusterfs's georeplication fails
https://bugs.launchpad.net/bugs/1746995
You received this bug notification because you are a member of Ubuntu Touch 
seeded packages, which is subscribed to rsync in Ubuntu.

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