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<p>Hi Micha,</p>
<p>This is great. I will provide you one debug build which has two
fixes which I possible suspect for a frequent disconnect issue,
though I don't have much data to validate my theory. So I will
take one more day to dig in to that.</p>
<p>Thanks for your support, and opensource++ </p>
<p>Regards</p>
<p>Rafi KC<br>
</p>
<div class="moz-cite-prefix">On 12/07/2016 05:02 AM, Micha Ober
wrote:<br>
</div>
<blockquote
cite="mid:1a7f7410-1369-de78-e2e0-359df139f038@gmail.com"
type="cite">
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
<div class="moz-cite-prefix">Hi,<br>
<br>
thank you for your answer and even more for the question!<br>
Until now, I was using FUSE. Today I changed all mounts to NFS
using the same 3.7.17 version.<br>
<br>
But: The problem is still the same. Now, the NFS logfile
contains lines like these:<br>
<br>
[2016-12-06 15:12:29.006325] C
[rpc-clnt-ping.c:165:rpc_clnt_ping_timer_expired]
0-gv0-client-7: server X.X.18.62:49153 has not responded in the
last 42 seconds, disconnecting.<br>
<br>
Interestingly enough, the IP address X.X.18.62 is the same
machine! As I wrote earlier, each node serves both as a server
and a client, as each node contributes bricks to the volume.
Every server is connecting to itself via its hostname. For
example, the fstab on the node "giant2" looks like:<br>
<br>
#giant2:/gv0 /shared_data glusterfs defaults,noauto
0 0<br>
#giant2:/gv2 /shared_slurm glusterfs defaults,noauto
0 0<br>
<br>
giant2:/gv0 /shared_data nfs
defaults,_netdev,vers=3 0 0<br>
giant2:/gv2 /shared_slurm nfs
defaults,_netdev,vers=3 0 0<br>
<br>
So I understand the disconnects even less. <br>
<br>
I don't know if it's possible to create a dummy cluster which
exposes the same behaviour, because the disconnects only happen
when there are compute jobs running on those nodes - and they
are GPU compute jobs, so that's something which cannot be easily
emulated in a VM.<br>
<br>
As we have more clusters (which are running fine with an ancient
3.4 version :-)) and we are currently not dependent on this
particular cluster (which may stay like this for this month, I
think) I should be able to deploy the debug build on the "real"
cluster, if you can provide a debug build.<br>
<br>
Regards and thanks,<br>
Micha<br>
<br>
<br>
<br>
Am 06.12.2016 um 08:15 schrieb Mohammed Rafi K C:<br>
</div>
<blockquote
cite="mid:6224c91e-be96-55a6-6185-9908203f0bdf@redhat.com"
type="cite">
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 12/03/2016 12:56 AM, Micha Ober
wrote:<br>
</div>
<blockquote
cite="mid:0b562c7d-5444-fda8-9876-25499bd5cdf8@gmail.com"
type="cite">
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
<div class="moz-cite-prefix"><tt>** Update: ** I have
downgraded from 3.8.6 to 3.7.17 now, but the problem still
exists.</tt><tt><br>
</tt></div>
</blockquote>
<blockquote
cite="mid:0b562c7d-5444-fda8-9876-25499bd5cdf8@gmail.com"
type="cite">
<div class="moz-cite-prefix"><tt> </tt><tt><br>
</tt><tt>Client log: <a moz-do-not-send="true"
class="moz-txt-link-freetext"
href="http://paste.ubuntu.com/23569065/">http://paste.ubuntu.com/23569065/</a></tt><tt><br>
</tt><tt>Brick log: <a moz-do-not-send="true"
class="moz-txt-link-freetext"
href="http://paste.ubuntu.com/23569067/">http://paste.ubuntu.com/23569067/</a></tt><tt><br>
</tt><tt><br>
</tt><tt>Please note that each server has two bricks.</tt><tt><br>
</tt><tt>Whereas, according to the logs, one brick loses the
connection to all other hosts:</tt><tt><br>
</tt>
<pre style="color: rgb(0, 0, 0); font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;">[2016-12-02 18:38:53.703301] W [socket.c:596:__socket_rwv] 0-tcp.gv0-server: writev on X.X.X.219:49121 failed (Broken pipe)
[2016-12-02 18:38:53.703381] W [socket.c:596:__socket_rwv] 0-tcp.gv0-server: writev on X.X.X.62:49118 failed (Broken pipe)
[2016-12-02 18:38:53.703380] W [socket.c:596:__socket_rwv] 0-tcp.gv0-server: writev on X.X.X.107:49121 failed (Broken pipe)
[2016-12-02 18:38:53.703424] W [socket.c:596:__socket_rwv] 0-tcp.gv0-server: writev on X.X.X.206:49120 failed (Broken pipe)
[2016-12-02 18:38:53.703359] W [socket.c:596:__socket_rwv] 0-tcp.gv0-server: writev on X.X.X.58:49121 failed (Broken pipe)
The SECOND brick on the SAME host is NOT affected, i.e. no disconnects!
As I said, the network connection is fine and the disks are idle.
The CPU always has 2 free cores.
It looks like I have to downgrade to 3.4 now in order for the disconnects to stop.</pre>
</div>
</blockquote>
<br>
Hi Micha,<br>
<br>
Thanks for the update and sorry for what happened with gluster
higher versions. I can understand the need for downgrade as it
is a production setup.<br>
<br>
Can you tell me the clients used here ? whether it is a
fuse,nfs,nfs-ganesha, smb or libgfapi ?<br>
<br>
Since I'm not able to reproduce the issue (I have been trying
from last 3days) and the logs are not much helpful here (we
don't have much logs in socket layer), Could you please create a
dummy cluster and try to reproduce the issue? If then we can
play with that volume and I could provide some debug build which
we can use for further debugging?<br>
<br>
If you don't have bandwidth for this, please leave it ;).<br>
<br>
Regards<br>
Rafi KC<br>
<br>
<blockquote
cite="mid:0b562c7d-5444-fda8-9876-25499bd5cdf8@gmail.com"
type="cite">
<div class="moz-cite-prefix">
<pre style="color: rgb(0, 0, 0); font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;">- Micha
</pre>
<br>
Am 30.11.2016 um 06:57 schrieb Mohammed Rafi K C:<br>
</div>
<blockquote
cite="mid:bd45cecb-374a-aebe-5f21-2704215df66c@redhat.com"
type="cite">
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
<p>Hi Micha,</p>
<p>I have changed the thread and subject so that your
original thread remain same for your query. Let's try to
fix the problem what you observed with 3.8.4, So I have
started a new thread to discuss the frequent disconnect
problem.</p>
<p><b>If any one else has experienced the same problem,
please respond to the mail.</b><br>
</p>
<p>It would be very helpful if you could give us some more
logs from clients and bricks. Also any reproducible steps
will surely help to chase the problem further.</p>
<p>Regards</p>
<p>Rafi KC<br>
</p>
<div class="moz-cite-prefix">On 11/30/2016 04:44 AM, Micha
Ober wrote:<br>
</div>
<blockquote
cite="mid:CAK9oAHZtNWdXuVCPHPF56+ZuiqAAkE-=YsWvNiEkPn2hGy6WKQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_default">
<div class="gmail_default"><font face="monospace,
monospace">I had opened another thread on this
mailing list (Subject: "After upgrade from 3.4.2
to 3.8.5 - High CPU usage resulting in disconnects
and split-brain").</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">The title may be a bit misleading now,
as I am no longer observing high CPU usage after
upgrading to 3.8.6, but the disconnects are still
happening and the number of files in split-brain
is growing.</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Setup: 6 compute nodes, each serving as
a glusterfs server and client, Ubuntu 14.04, two
bricks per node, distribute-replicate</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">I have two gluster volumes set up (one
for scratch data, one for the slurm scheduler).
Only the scratch data volume shows critical errors
"[...] has not responded in the last 42 seconds,
disconnecting.". So I can rule out network
problems, the gigabit link between the nodes is
not saturated at all. The disks are almost idle
(<10%).</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">I have glusterfs 3.4.2 on Ubuntu 12.04
on a another compute cluster, running fine since
it was deployed.</font></div>
<div class="gmail_default"><font face="monospace,
monospace">I had glusterfs 3.4.2 on Ubuntu 14.04
on this cluster, running fine for almost a year.</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">After upgrading to 3.8.5, the problems
(as described) started. I would like to use some
of the new features of the newer versions (like
bitrot), but the users can't run their compute
jobs right now because the result files are
garbled.</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">There also seems to be a bug report
with a smiliar problem: (but no progress)</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><a moz-do-not-send="true"
class="moz-txt-link-freetext"
href="https://bugzilla.redhat.com/show_bug.cgi?id=1370683">https://bugzilla.redhat.com/show_bug.cgi?id=1370683</a></font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">For me, ALL servers are affected (not
isolated to one or two servers)</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">I also see messages like <a
moz-do-not-send="true"
class="moz-txt-link-rfc2396E"
href="INFO:taskgpu_graphene_bv:4476blockedformorethan120seconds."><a class="moz-txt-link-rfc2396E" href="INFO:taskgpu_graphene_bv:4476blockedformorethan120seconds.">"INFO:
task gpu_graphene_bv:4476 blocked for more than
120 seconds."</a></a> in the syslog.</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">For completeness (gv0 is the scratch
volume, gv2 the slurm volume):</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">[root@giant2: ~]# gluster v info</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Volume Name: gv0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Type: Distributed-Replicate</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Volume ID:
993ec7c9-e4bc-44d0-b7c4-2d977e622e86</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Status: Started</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Snapshot Count: 0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Number of Bricks: 6 x 2 = 12</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Transport-type: tcp</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Bricks:</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick1: giant1:/gluster/sdc/gv0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick2: giant2:/gluster/sdc/gv0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick3: giant3:/gluster/sdc/gv0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick4: giant4:/gluster/sdc/gv0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick5: giant5:/gluster/sdc/gv0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick6: giant6:/gluster/sdc/gv0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick7: giant1:/gluster/sdd/gv0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick8: giant2:/gluster/sdd/gv0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick9: giant3:/gluster/sdd/gv0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick10: giant4:/gluster/sdd/gv0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick11: giant5:/gluster/sdd/gv0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick12: giant6:/gluster/sdd/gv0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Options Reconfigured:</font></div>
<div class="gmail_default"><font face="monospace,
monospace">auth.allow: X.X.X.*,127.0.0.1</font></div>
<div class="gmail_default"><font face="monospace,
monospace">nfs.disable: on</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Volume Name: gv2</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Type: Replicate</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Volume ID:
30c78928-5f2c-4671-becc-8deaee1a7a8d</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Status: Started</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Snapshot Count: 0</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Number of Bricks: 1 x 2 = 2</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Transport-type: tcp</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Bricks:</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick1: giant1:/gluster/sdd/gv2</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Brick2: giant2:/gluster/sdd/gv2</font></div>
<div class="gmail_default"><font face="monospace,
monospace">Options Reconfigured:</font></div>
<div class="gmail_default"><font face="monospace,
monospace">auth.allow: X.X.X.*,127.0.0.1</font></div>
<div class="gmail_default"><font face="monospace,
monospace">cluster.granular-entry-heal: on</font></div>
<div class="gmail_default"><font face="monospace,
monospace">cluster.locking-scheme: granular</font></div>
<div class="gmail_default"><font face="monospace,
monospace">nfs.disable: on</font></div>
<div style="font-family:monospace,monospace"><br>
</div>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">2016-11-30 0:10 GMT+01:00 Micha
Ober <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:micha2k@gmail.com" target="_blank">micha2k@gmail.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div class="gmail_default"
style="font-family:monospace,monospace">There
also seems to be a bug report with a smiliar
problem: (but no progress)</div>
<div class="gmail_default"><font face="monospace,
monospace"><a moz-do-not-send="true"
href="https://bugzilla.redhat.com/show_bug.cgi?id=1370683"
target="_blank">https://bugzilla.redhat.com/<wbr>show_bug.cgi?id=1370683</a></font><br>
</div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">For me, ALL servers are affected
(not isolated to one or two servers)</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">I also see messages like <a
moz-do-not-send="true"
class="moz-txt-link-rfc2396E"
href="INFO:taskgpu_graphene_bv:4476blockedformorethan120seconds."><a class="moz-txt-link-rfc2396E" href="INFO:taskgpu_graphene_bv:4476blockedformorethan120seconds.">"INFO:
task gpu_graphene_bv:4476 blocked for more
than 120 seconds."</a></a> in the syslog.</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">For completeness (gv0 is the
scratch volume, gv2 the slurm volume):</font></div>
<div class="gmail_default"><font face="monospace,
monospace"><br>
</font></div>
<div class="gmail_default"><font face="monospace,
monospace">
<div class="gmail_default">[root@giant2: ~]#
gluster v info</div>
<div class="gmail_default"><br>
</div>
<div class="gmail_default">Volume Name: gv0</div>
<div class="gmail_default">Type:
Distributed-Replicate</div>
<div class="gmail_default">Volume ID:
993ec7c9-e4bc-44d0-b7c4-<wbr>2d977e622e86</div>
<div class="gmail_default">Status: Started</div>
<div class="gmail_default">Snapshot Count: 0</div>
<div class="gmail_default">Number of Bricks: 6
x 2 = 12</div>
<div class="gmail_default">Transport-type: tcp</div>
<div class="gmail_default">Bricks:</div>
<div class="gmail_default">Brick1:
giant1:/gluster/sdc/gv0</div>
<div class="gmail_default">Brick2:
giant2:/gluster/sdc/gv0</div>
<div class="gmail_default">Brick3:
giant3:/gluster/sdc/gv0</div>
<div class="gmail_default">Brick4:
giant4:/gluster/sdc/gv0</div>
<div class="gmail_default">Brick5:
giant5:/gluster/sdc/gv0</div>
<div class="gmail_default">Brick6:
giant6:/gluster/sdc/gv0</div>
<div class="gmail_default">Brick7:
giant1:/gluster/sdd/gv0</div>
<div class="gmail_default">Brick8:
giant2:/gluster/sdd/gv0</div>
<div class="gmail_default">Brick9:
giant3:/gluster/sdd/gv0</div>
<div class="gmail_default">Brick10:
giant4:/gluster/sdd/gv0</div>
<div class="gmail_default">Brick11:
giant5:/gluster/sdd/gv0</div>
<div class="gmail_default">Brick12:
giant6:/gluster/sdd/gv0</div>
<div class="gmail_default">Options
Reconfigured:</div>
<div class="gmail_default">auth.allow:
X.X.X.*,127.0.0.1</div>
<div class="gmail_default">nfs.disable: on</div>
<div class="gmail_default"><br>
</div>
<div class="gmail_default">Volume Name: gv2</div>
<div class="gmail_default">Type: Replicate</div>
<div class="gmail_default">Volume ID:
30c78928-5f2c-4671-becc-<wbr>8deaee1a7a8d</div>
<div class="gmail_default">Status: Started</div>
<div class="gmail_default">Snapshot Count: 0</div>
<div class="gmail_default">Number of Bricks: 1
x 2 = 2</div>
<div class="gmail_default">Transport-type: tcp</div>
<div class="gmail_default">Bricks:</div>
<div class="gmail_default">Brick1:
giant1:/gluster/sdd/gv2</div>
<div class="gmail_default">Brick2:
giant2:/gluster/sdd/gv2</div>
<div class="gmail_default">Options
Reconfigured:</div>
<div class="gmail_default">auth.allow:
X.X.X.*,127.0.0.1</div>
<div class="gmail_default">cluster.granular-entry-heal:
on</div>
<div class="gmail_default">cluster.locking-scheme:
granular</div>
<div class="gmail_default">nfs.disable: on</div>
<div><br>
</div>
</font></div>
</div>
<div class="HOEnZb">
<div class="h5">
<div class="gmail_extra"><br>
<div class="gmail_quote">2016-11-29 19:21
GMT+01:00 Micha Ober <span dir="ltr"><<a
moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:micha2k@gmail.com"><a class="moz-txt-link-abbreviated" href="mailto:micha2k@gmail.com">micha2k@gmail.com</a></a>></span>:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex">
<div dir="ltr">
<div class="gmail_default"
style="font-family:monospace,monospace">I
had opened another thread on this
mailing list (Subject: "After upgrade
from 3.4.2 to 3.8.5 - High CPU usage
resulting in disconnects and
split-brain").</div>
<div class="gmail_default"
style="font-family:monospace,monospace"><br>
</div>
<div class="gmail_default"
style="font-family:monospace,monospace">The
title may be a bit misleading now, as
I am no longer observing high CPU
usage after upgrading to 3.8.6, but
the disconnects are still happening
and the number of files in split-brain
is growing.<br>
</div>
<div class="gmail_default"
style="font-family:monospace,monospace"><br>
</div>
<div class="gmail_default"
style="font-family:monospace,monospace">Setup:
6 compute nodes, each serving as a
glusterfs server and client, Ubuntu
14.04, two bricks per node,
distribute-replicate</div>
<div class="gmail_default"
style="font-family:monospace,monospace"><br>
</div>
<div class="gmail_default"
style="font-family:monospace,monospace">I
have two gluster volumes set up (one
for scratch data, one for the slurm
scheduler). Only the scratch data
volume shows critical errors "[...]
has not responded in the last 42
seconds, disconnecting.". So I can
rule out network problems, the gigabit
link between the nodes is not
saturated at all. The disks are almost
idle (<10%).</div>
<div class="gmail_default"
style="font-family:monospace,monospace"><br>
</div>
<div class="gmail_default"
style="font-family:monospace,monospace">I
have glusterfs 3.4.2 on Ubuntu 12.04
on a another compute cluster, running
fine since it was deployed.</div>
<div class="gmail_default"
style="font-family:monospace,monospace">I
had glusterfs 3.4.2 on Ubuntu 14.04 on
this cluster, running fine for almost
a year.</div>
<div class="gmail_default"
style="font-family:monospace,monospace"><br>
</div>
<div class="gmail_default"
style="font-family:monospace,monospace">After
upgrading to 3.8.5, the problems (as
described) started. I would like to
use some of the new features of the
newer versions (like bitrot), but the
users can't run their compute jobs
right now because the result files are
garbled.</div>
</div>
<div class="m_-1578094958703753071HOEnZb">
<div class="m_-1578094958703753071h5">
<div class="gmail_extra"><br>
<div class="gmail_quote">2016-11-29
18:53 GMT+01:00 Atin Mukherjee <span
dir="ltr"><<a
moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:amukherj@redhat.com"><a class="moz-txt-link-abbreviated" href="mailto:amukherj@redhat.com">amukherj@redhat.com</a></a>></span>:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div style="white-space:pre-wrap">Would you be able to share what is not working for you in 3.8.x (mention the exact version). 3.4 is quite old and falling back to an unsupported version doesn't look a feasible option.</div>
<br>
<div class="gmail_quote">
<div>
<div
class="m_-1578094958703753071m_-2811647508981727209h5">
<div dir="ltr">On Tue, 29
Nov 2016 at 17:01, Micha
Ober <<a
moz-do-not-send="true"
class="moz-txt-link-abbreviated" href="mailto:micha2k@gmail.com"><a class="moz-txt-link-abbreviated" href="mailto:micha2k@gmail.com">micha2k@gmail.com</a></a>>
wrote:<br>
</div>
</div>
</div>
<blockquote
class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div>
<div
class="m_-1578094958703753071m_-2811647508981727209h5">
<div dir="ltr"
class="m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg">
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace">Hi,</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace"><br
class="m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg">
</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace">I was using gluster 3.4 and
upgraded to 3.8, but
that version showed
to be unusable for
me. I now need to
downgrade.</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace"><br
class="m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg">
</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace">I'm running Ubuntu 14.04. As
upgrades of the op
version
are irreversible, I
guess I have to
delete all gluster
volumes and
re-create them with
the downgraded
version. </div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace"><br
class="m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg">
</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace">0. Backup data</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace">1. Unmount all gluster volumes</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace">2. apt-get purge
glusterfs-server
glusterfs-client</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace">3. Remove PPA for 3.8</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace">4. Add PPA for older version</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace">5. apt-get install
glusterfs-server
glusterfs-client</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace">6. Create volumes</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace"><br
class="m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg">
</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace">Is "purge" enough to delete all
configuration files
of the currently
installed version or
do I need to
manually clear some
residues before
installing an older
version?</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace"><br
class="m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg">
</div>
<div
class="gmail_default
m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
style="font-family:monospace,monospace">Thanks.</div>
</div>
</div>
</div>
<span>
______________________________<wbr>_________________<br
class="m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg">
Gluster-users mailing list<br
class="m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg">
<a moz-do-not-send="true"
href="mailto:Gluster-users@gluster.org"
class="m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg"
target="_blank">Gluster-users@gluster.org</a><br
class="m_-1578094958703753071m_-2811647508981727209m_-2705140003504720857gmail_msg">
<a moz-do-not-send="true"
href="http://www.gluster.org/mailman/listinfo/gluster-users"
rel="noreferrer"
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target="_blank">http://www.gluster.org/mailman<wbr>/listinfo/gluster-users</a></span></blockquote>
</div>
<span
class="m_-1578094958703753071m_-2811647508981727209HOEnZb"><font
color="#888888">
<div dir="ltr">-- <br>
</div>
<div
data-smartmail="gmail_signature">-
Atin (atinm)</div>
</font></span></blockquote>
</div>
<br>
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</div>
</div>
</blockquote>
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</div>
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<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Gluster-users mailing list
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<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.gluster.org/mailman/listinfo/gluster-users">http://www.gluster.org/mailman/listinfo/gluster-users</a></pre>
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