[Gluster-users] glusterfs client crashes

[Dj Merrill]

Several weeks ago we started seeing some weird behaviour on our Gluster 
client systems.  Things would be working fine for several days, then the 
client could no longer access the Gluster filesystems, giving an error:

ls: cannot access /mnt/hpc: Transport endpoint is not connected

We were running version 3.7.6 and this version had been working fine for 
a few months until the above started happening.  Thinking that it may be 
an OS or kernel update causing the issue, when 3.7.8 came out, we 
upgraded in hopes that the issue might be addressed, but we are still 
getting having the issue.

All client machines are running Centos 7.2 with the latest updates, and 
the problem is happening on several machines.  Not every Gluster client 
machine has had the problem, but enough different machines to make us 
think that this is more of a generic issue versus one that only affects 
specific types of machines (Both Intel and AMD CPUs, different system 
manufacturers, etc).

The log file included below from /var/log/glusterfs seems to be showing 
a crash of the glusterfs process if I am interpreting it correctly.  At 
the top you can see an entry made on the 17th, then no further entries 
until the crash today on the 21st.

We would greatly appreciate any help in tracking down the cause and 
possible fix for this.

The only way to temporarily "fix" the machines seems to be a reboot, 
which allows the machines to work properly for a few days before the 
issue happens again (random amount of days, no pattern).


[2016-02-17 23:56:39.685754] I [MSGID: 109036] 
[dht-common.c:8043:dht_log_new_layout_for_dir_selfheal] 0-gv0-dht: 
Setting layout of /tmp/ktreraya/gms-scr/tmp/123277 with [Subvol_name: 
gv0-replicate-0, Err: -1 , Start: 0 , Stop: 4294967295 , Hash: 1 ],
pending frames:
frame : type(1) op(GETXATTR)
frame : type(0) op(0)
frame : type(0) op(0)
frame : type(0) op(0)
frame : type(0) op(0)
frame : type(1) op(GETXATTR)
frame : type(1) op(GETXATTR)
frame : type(0) op(0)
frame : type(0) op(0)
frame : type(1) op(GETXATTR)
frame : type(0) op(0)
frame : type(0) op(0)
frame : type(0) op(0)
frame : type(0) op(0)
frame : type(0) op(0)
frame : type(0) op(0)
frame : type(1) op(GETXATTR)
frame : type(0) op(0)
frame : type(1) op(GETXATTR)
frame : type(0) op(0)
frame : type(1) op(GETXATTR)
frame : type(0) op(0)
frame : type(1) op(GETXATTR)
frame : type(0) op(0)
frame : type(0) op(0)
patchset: git://git.gluster.com/glusterfs.git
signal received: 6
time of crash:
2016-02-21 08:10:40
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 3.7.8
/lib64/libglusterfs.so.0(_gf_msg_backtrace_nomem+0xc2)[0x7ff56ddcd042]
/lib64/libglusterfs.so.0(gf_print_trace+0x31d)[0x7ff56dde950d]
/lib64/libc.so.6(+0x35670)[0x7ff56c4bb670]
/lib64/libc.so.6(gsignal+0x37)[0x7ff56c4bb5f7]
/lib64/libc.so.6(abort+0x148)[0x7ff56c4bcce8]
/lib64/libc.so.6(+0x75317)[0x7ff56c4fb317]
/lib64/libc.so.6(+0x7d023)[0x7ff56c503023]
/usr/lib64/glusterfs/3.7.8/xlator/protocol/client.so(client_local_wipe+0x39)[0x7ff5600a46b9]
/usr/lib64/glusterfs/3.7.8/xlator/protocol/client.so(client3_3_getxattr_cbk+0x182)[0x7ff5600a7f62]
/lib64/libgfrpc.so.0(rpc_clnt_handle_reply+0x90)[0x7ff56db9ba20]
/lib64/libgfrpc.so.0(rpc_clnt_notify+0x1bf)[0x7ff56db9bcdf]
/lib64/libgfrpc.so.0(rpc_transport_notify+0x23)[0x7ff56db97823]
/usr/lib64/glusterfs/3.7.8/rpc-transport/socket.so(+0x6636)[0x7ff5627a8636]
/usr/lib64/glusterfs/3.7.8/rpc-transport/socket.so(+0x9294)[0x7ff5627ab294]
/lib64/libglusterfs.so.0(+0x878ea)[0x7ff56de2e8ea]
/lib64/libpthread.so.0(+0x7dc5)[0x7ff56cc35dc5]
/lib64/libc.so.6(clone+0x6d)[0x7ff56c57c28d]


Thank you,

-Dj