[Gluster-users] Slow write times to gluster disk

Steve Postma SPostma at ztechnet.com
Tue Aug 8 13:27:19 UTC 2017 

Soumya,

its


[root at mseas-data2 ~]# glusterfs --version
glusterfs 3.7.11 built on Apr 27 2016 14:09:20
Repository revision: git://git.gluster.com/glusterfs.git
Copyright (c) 2006-2013 Red Hat, Inc. <http://www.redhat.com/>
GlusterFS comes with ABSOLUTELY NO WARRANTY.
It is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3
or later), or the GNU General Public License, version 2 (GPLv2),
in all cases as published by the Free Software Foundation.
[root at mseas-data2 ~]#


Thanks,

Steve


________________________________
From: Soumya Koduri <skoduri at redhat.com>
Sent: Tuesday, August 8, 2017 1:37 AM
To: Pat Haley; Niels de Vos
Cc: gluster-users at gluster.org; Pranith Kumar Karampuri; Ben Turner; Ravishankar N; Raghavendra Gowdappa; Niels de Vos; Steve Postma
Subject: Re: [Gluster-users] Slow write times to gluster disk



----- Original Message -----
> From: "Pat Haley" <phaley at mit.edu><mailto:phaley at mit.edu>>
> To: "Soumya Koduri" <skoduri at redhat.com><mailto:skoduri at redhat.com>>, gluster-users at gluster.org<mailto:gluster-users at gluster.org>, "Pranith Kumar Karampuri" <pkarampu at redhat.com><mailto:pkarampu at redhat.com>>
> Cc: "Ben Turner" <bturner at redhat.com><mailto:bturner at redhat.com>>, "Ravishankar N" <ravishankar at redhat.com><mailto:ravishankar at redhat.com>>, "Raghavendra Gowdappa"
> <rgowdapp at redhat.com><mailto:rgowdapp at redhat.com>>, "Niels de Vos" <ndevos at redhat.com><mailto:ndevos at redhat.com>>, "Steve Postma" <SPostma at ztechnet.com><mailto:SPostma at ztechnet.com>>
> Sent: Monday, August 7, 2017 9:52:48 PM
> Subject: Re: [Gluster-users] Slow write times to gluster disk
>
>
> Hi Soumya,
>
> We just had the opportunity to try the option of disabling the
> kernel-NFS and restarting glusterd to start gNFS. However the gluster
> demon crashes immediately on startup. What additional information
> besides what we provide below would help debugging this?
>

Which version of glusterfs are you using? There were few regressions caused (all fixed now in master branch atleast) by recent changes in mount codepath.

Request Niels to comment.

Thanks,
Soumya


> Thanks,
>
> Pat
>
>
> -------- Forwarded Message --------
> Subject: gluster-nfs crashing on start
> Date: Mon, 7 Aug 2017 16:05:09 +0000
> From: Steve Postma <SPostma at ztechnet.com><mailto:SPostma at ztechnet.com>>
> To: Pat Haley <phaley at mit.edu><mailto:phaley at mit.edu>>
>
>
>
> *To disable kernal-nfs and enable nfs through Gluster we:*
>
>
> gluster volume set data-volume nfs.export-volumes on
> gluster volume set data-volume nfs.disable off
>
> /etc/init.d/glusterd stop
>
>
> service nfslock stop
>
> service rpcgssd stop
>
> service rpcidmapd stop
>
> service portmap stop
>
> service nfs stop
>
>
> /etc/init.d/glusterd stop
>
>
>
>
> *the /var/log/glusterfs/nfs.log immediately reports a crash:*
>
> *
> *
>
> [root at mseas-data2<mailto:root at mseas-data2> glusterfs]# cat nfs.log
>
> [2017-08-07 15:20:16.327026] I [MSGID: 100030] [glusterfsd.c:2332:main]
> 0-/usr/sbin/glusterfs: Started running /usr/sbin/glusterfs version
> 3.7.11 (args: /usr/sbin/glusterfs -s localhost --volfile-id gluster/nfs
> -p /var/lib/glusterd/nfs/run/nfs.pid -l /var/log/glusterfs/nfs.log -S
> /var/run/gluster/7db74f19472511d20849e471bf224c1a.socket)
>
> [2017-08-07 15:20:16.345166] I [MSGID: 101190]
> [event-epoll.c:632:event_dispatch_epoll_worker] 0-epoll: Started thread
> with index 1
>
> [2017-08-07 15:20:16.351290] I
> [rpcsvc.c:2215:rpcsvc_set_outstanding_rpc_limit] 0-rpc-service:
> Configured rpc.outstanding-rpc-limit with value 16
>
> pending frames:
>
> frame : type(0) op(0)
>
> patchset: git://git.gluster.com/glusterfs.git
>
> signal received: 11
>
> time of crash:
>
> 2017-08-07 15:20:17
>
> 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 3.7.11
>
> /usr/lib64/libglusterfs.so.0(_gf_msg_backtrace_nomem+0xb8)[0x3889625a18]
>
> /usr/lib64/libglusterfs.so.0(gf_print_trace+0x32f)[0x38896456af]
>
> /lib64/libc.so.6[0x34a1c32660]
>
> /lib64/libc.so.6[0x34a1d3382f]
>
> /usr/lib64/glusterfs/3.7.11/xlator/nfs/server.so(+0x53307)[0x7f8d071b3307]
>
> /usr/lib64/glusterfs/3.7.11/xlator/nfs/server.so(exp_file_parse+0x302)[0x7f8d071b3742]
>
> /usr/lib64/glusterfs/3.7.11/xlator/nfs/server.so(mnt3_auth_set_exports_auth+0x45)[0x7f8d071b47a5]
>
> /usr/lib64/glusterfs/3.7.11/xlator/nfs/server.so(_mnt3_init_auth_params+0x91)[0x7f8d07183e41]
>
> /usr/lib64/glusterfs/3.7.11/xlator/nfs/server.so(mnt3svc_init+0x218)[0x7f8d07184228]
>
> /usr/lib64/glusterfs/3.7.11/xlator/nfs/server.so(nfs_init_versions+0xd7)[0x7f8d07174a37]
>
> /usr/lib64/glusterfs/3.7.11/xlator/nfs/server.so(init+0x77)[0x7f8d071767c7]
>
> /usr/lib64/libglusterfs.so.0(xlator_init+0x52)[0x3889622a82]
>
> /usr/lib64/libglusterfs.so.0(glusterfs_graph_init+0x31)[0x3889669aa1]
>
> /usr/lib64/libglusterfs.so.0(glusterfs_graph_activate+0x57)[0x3889669bd7]
>
> /usr/sbin/glusterfs(glusterfs_process_volfp+0xed)[0x405c0d]
>
> /usr/sbin/glusterfs(mgmt_getspec_cbk+0x312)[0x40dbd2]
>
> /usr/lib64/libgfrpc.so.0(rpc_clnt_handle_reply+0xa5)[0x3889e0f7b5]
>
> /usr/lib64/libgfrpc.so.0(rpc_clnt_notify+0x1a1)[0x3889e10891]
>
> /usr/lib64/libgfrpc.so.0(rpc_transport_notify+0x28)[0x3889e0bbd8]
>
> /usr/lib64/glusterfs/3.7.11/rpc-transport/socket.so(+0x94cd)[0x7f8d088e04cd]
>
> /usr/lib64/glusterfs/3.7.11/rpc-transport/socket.so(+0xa79d)[0x7f8d088e179d]
>
> /usr/lib64/libglusterfs.so.0[0x388968b2f0]
>
> /lib64/libpthread.so.0[0x34a2007aa1]
>
> /lib64/libc.so.6(clone+0x6d)[0x34a1ce8aad]
>
>
>
>
>
>
> [root at mseas-data2<mailto:root at mseas-data2> glusterfs]# gluster volume info
>
> Volume Name: data-volume
>
> Type: Distribute
>
> Volume ID: c162161e-2a2d-4dac-b015-f31fd89ceb18
>
> Status: Started
>
> Number of Bricks: 2
>
> Transport-type: tcp
>
> Bricks:
>
> Brick1: mseas-data2:/mnt/brick1
>
> Brick2: mseas-data2:/mnt/brick2
>
> Options Reconfigured:
>
> nfs.export-volumes: on
>
> nfs.disable: off
>
> performance.readdir-ahead: on
>
> diagnostics.brick-sys-log-level: WARNING
>
> nfs.exports-auth-enable: on
>
>
>
> "/var/lib/glusterd/nfs/exports"
>
> /gdata 172.16.1.0/255.255.255.0(rw)
>
>
>
>
> *What else can we do to identify why this is failing?**
> *
>
> **
> **
>
>
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