[Bugs] [Bug 1175756] [USS] : Snapd crashed while trying to access the snapshots under .snaps directory
bugzilla at redhat.com
bugzilla at redhat.com
Tue Jan 6 10:32:30 UTC 2015
https://bugzilla.redhat.com/show_bug.cgi?id=1175756
Raghavendra Bhat <rabhat at redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rabhat at redhat.com
--- Comment #6 from Raghavendra Bhat <rabhat at redhat.com> ---
escription of problem:
======================
Snapshot daemon crashed while trying to access snap directory under .snaps
directory
Version-Release number of selected component (if applicable):
============================================================
glusterfs 3.6.0.30
How reproducible:
================
1/1
Steps to Reproduce:
==================
1.Create a 2x2 dist rep volume and start it
2.Fuse and NFS mount the volume
3. Enbale USS on the volume
4.Create some IO
Fuse mount : for i in {1..10} ; do cp -rvf /etc etc.$i ; done
NFS mount : for i in {1..10} ; do cp -rvf /etc nfs_etc.$i ; done
3.While IO is going on, create few snapshots on the volume
for i in {1..10}; do gluster snapshot create snap"$i" vol0 ;done
4.After snapshot creation is completed, from fuse mount, cd to .snaps
[root at dhcp-0-97 .snaps]# ll
total 0
d---------. 0 root root 0 Jan 1 1970 snap1
d---------. 0 root root 0 Jan 1 1970 snap10
d---------. 0 root root 0 Jan 1 1970 snap2
d---------. 0 root root 0 Jan 1 1970 snap3
d---------. 0 root root 0 Jan 1 1970 snap4
d---------. 0 root root 0 Jan 1 1970 snap5
d---------. 0 root root 0 Jan 1 1970 snap6
d---------. 0 root root 0 Jan 1 1970 snap7
d---------. 0 root root 0 Jan 1 1970 snap8
d---------. 0 root root 0 Jan 1 1970 snap9
cd to snap1 and list the files and directories under them, resulted in snapd
crash
[root at dhcp-0-97 .snaps]# cd snap1
[root at dhcp-0-97 snap1]# ls
ls: cannot read symbolic link rc4.d: Transport endpoint is not connected
ls: cannot access cups: Transport endpoint is not connected
ls: cannot access cron.weekly: Transport endpoint is not connected
ls: cannot access quotatab: Transport endpoint is not connected
ls: reading directory .: File descriptor in bad state
aliases.db cron.weekly environment magic my.cnf PackageKit printcap
rc4.d shells xdg
cron.hourly cups gshadow- modprobe.d oddjob plymouth quotatab
rc.d statetab.d yum.conf
[root at dhcp-0-97 snap1]# ll
ls: cannot open directory .: Transport endpoint is not connected
[root at dhcp-0-97 snap1]# ls
ls: cannot open directory .: Transport endpoint is not connected
[root at dhcp-0-97 snap1]# ls
ls: cannot open directory .: Transport endpoint is not connected
[root at dhcp-0-97 snap1]# cd ..
bash: cd: ..: Transport endpoint is not connected
[root at dhcp-0-97 snap1]# cd ..
bash: cd: ..: Transport endpoint is not connected
gluster v status vol0
Status of volume: vol0
Gluster process Port Online Pid
------------------------------------------------------------------------------
Brick snapshot13.lab.eng.blr.redhat.com:/rhs/brick1/b1 49152 Y 16104
Brick snapshot14.lab.eng.blr.redhat.com:/rhs/brick1/b1 49152 Y 14350
Brick snapshot15.lab.eng.blr.redhat.com:/rhs/brick1/b1 49152 Y 14379
Brick snapshot16.lab.eng.blr.redhat.com:/rhs/brick1/b1 49152 Y 14046
Snapshot Daemon on localhost N/A N 16315
NFS Server on localhost 2049 Y 16330
Self-heal Daemon on localhost N/A Y 16257
Snapshot Daemon on snapshot14.lab.eng.blr.redhat.com 49160 Y 14527
NFS Server on snapshot14.lab.eng.blr.redhat.com 2049 Y 14542
Self-heal Daemon on snapshot14.lab.eng.blr.redhat.com N/A Y 14480
Snapshot Daemon on snapshot16.lab.eng.blr.redhat.com 49160 Y 14227
NFS Server on snapshot16.lab.eng.blr.redhat.com 2049 Y 14242
Self-heal Daemon on snapshot16.lab.eng.blr.redhat.com N/A Y 14179
Snapshot Daemon on snapshot15.lab.eng.blr.redhat.com 49160 Y 14560
NFS Server on snapshot15.lab.eng.blr.redhat.com 2049 Y 14567
Self-heal Daemon on snapshot15.lab.eng.blr.redhat.com N/A Y 14506
Task Status of Volume vol0
------------------------------------------------------------------------------
Actual results:
===============
snapd crash while trying to access the snap directory under .snaps
Expected results:
================
Accessing snaps under .snaps should not result in any crash
Additional info:
===============
snapd log snippet:
~~~~~~~~~~~~~~~~~~
[2014-11-04 05:58:04.581582] I [snapview-server-mgmt.c:27:mgmt_cbk_snap]
0-mgmt: list of snapshots changed
[2014-11-04 05:58:15.695738] W [dict.c:1307:dict_get_with_ref]
(-->/usr/lib64/libglusterfs.so.0(default_lookup_resume+0x12c) [0x396aa271dc]
(-->/usr/lib64/glusterfs/3.6.0.30/xlator/features/snapview-server.so(svs_lookup+0x2e3)
[0x7f47ce276f03] (-->/usr/lib64/libglusterfs.so.0(dict_get_str_boolean+0x1f)
[0x396aa1aabf]))) 0-dict: dict OR key (entry-point) is NULL
[2014-11-04 05:58:19.481945] W [dict.c:1307:dict_get_with_ref]
(-->/usr/lib64/libglusterfs.so.0(default_lookup_resume+0x12c) [0x396aa271dc]
(-->/usr/lib64/glusterfs/3.6.0.30/xlator/features/snapview-server.so(svs_lookup+0x2e3)
[0x7f47ce276f03] (-->/usr/lib64/libglusterfs.so.0(dict_get_str_boolean+0x1f)
[0x396aa1aabf]))) 0-dict: dict OR key (entry-point) is NULL
pending frames:
frame : type(0) op(2)
patchset: git://git.gluster.com/glusterfs.git
signal received: 11
time of crash:
2014-11-04 05:58:19
configuration details:
argp 1
backtrace 1
dlfcn 1
libpthread 1
llistxattr 1
setfsid 1
spinlock 1
epoll.h 1
xattr.h 1
st_atim.tv_nsec 1
package-string: glusterfs 3.6.1
/usr/lib64/libglusterfs.so.0(_gf_msg_backtrace_nomem+0xb6)[0x396aa1ff06]
/usr/lib64/libglusterfs.so.0(gf_print_trace+0x33f)[0x396aa3a59f]
/lib64/libc.so.6[0x343c8326a0]
/usr/lib64/libglusterfs.so.0(default_readlink+0x32)[0x396aa25a52]
/usr/lib64/libglusterfs.so.0(default_readlink_resume+0x137)[0x396aa293f7]
/usr/lib64/libglusterfs.so.0(call_resume+0x54e)[0x396aa41cde]
/usr/lib64/glusterfs/3.6.1/xlator/performance/io-threads.so(iot_worker+0x158)[0x7f47ce069348]
/lib64/libpthread.so.0[0x343cc079d1]
/lib64/libc.so.6(clone+0x6d)[0x343c8e89dd]
--
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.
More information about the Bugs
mailing list