<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Exchange Server">
<!-- converted from text --><style><!-- .EmailQuote { margin-left: 1pt; padding-left: 4pt; border-left: #800000 2px solid; } --></style>
</head>
<body>
<meta content="text/html; charset=UTF-8">
<style type="text/css" style="">
<!--
p
{margin-top:0;
margin-bottom:0}
-->
</style>
<div dir="ltr">
<div id="x_divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<p>Hi,</p>
<p><br>
</p>
<p>Doing online upgrade with replica 2 should be fine, i think there might be something else causing the corruption.</p>
<p><br>
</p>
<div id="x_Signature"><br>
<div class="x_ecxmoz-signature">-- <br>
<br>
<font color="#3366ff"><font color="#000000">Respectfully<b><br>
</b><b>Mahdi A. Mahdi</b></font></font><font color="#3366ff"><br>
<br>
</font><font color="#3366ff"></font></div>
</div>
</div>
<hr tabindex="-1" style="display:inline-block; width:98%">
<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> gluster-users-bounces@gluster.org <gluster-users-bounces@gluster.org> on behalf of Pavel Szalbot <pavel.szalbot@gmail.com><br>
<b>Sent:</b> Tuesday, July 11, 2017 3:29:48 PM<br>
<b>To:</b> Pranith Kumar Karampuri<br>
<b>Cc:</b> gluster-users<br>
<b>Subject:</b> Re: [Gluster-users] Upgrading Gluster revision (3.8.12 to 3.8.13) caused underlying VM fs corruption</font>
<div> </div>
</div>
</div>
<font size="2"><span style="font-size:10pt;">
<div class="PlainText">Well it was probably caused by running replica 2 and doing online<br>
upgrade. However I added brick, turned volume to replica 3 with<br>
arbiter and got very strange issue I will mail to this list in a<br>
moment...<br>
<br>
Thanks.<br>
-ps<br>
<br>
<br>
On Tue, Jul 11, 2017 at 1:55 PM, Pranith Kumar Karampuri<br>
<pkarampu@redhat.com> wrote:<br>
><br>
><br>
> On Tue, Jul 11, 2017 at 5:12 PM, Diego Remolina <dijuremo@gmail.com> wrote:<br>
>><br>
>> ><br>
>> > You should first upgrade servers and then clients. New servers can<br>
>> > understand old clients, but it is not easy for old servers to understand<br>
>> > new<br>
>> > clients in case it started doing something new.<br>
>><br>
>> But isn't that the reason op-version exists? So that regardless of<br>
>> client/server mix, nobody tries to do "new" things above the current<br>
>> op-version?<br>
>><br>
>><br>
>> He is not changing mayor versions, just a small step from 3.8.12 to<br>
>> 3.8.13. Corruption should not be happening.<br>
><br>
><br>
> For some reason 3.8 upgrade guide is not where it is supposed to be.<br>
> We highly recommend upgrading servers ahead of clients.<br>
> <a href="https://github.com/nixpanic/glusterdocs/commit/f6d48dc17f2cb6ee4680e372520ec3358641b2bc">
https://github.com/nixpanic/glusterdocs/commit/f6d48dc17f2cb6ee4680e372520ec3358641b2bc</a><br>
><br>
> I think at some point it is better to make this mandatory. Without a<br>
> predefined way of upgrading, it is very difficult to fix bugs in backward<br>
> compatible manner.<br>
><br>
> I am not sure why the corruption happened either :-(. Pavel, could you give<br>
> log files may be?<br>
><br>
>><br>
>> Diego<br>
>> _______________________________________________<br>
>> Gluster-users mailing list<br>
>> Gluster-users@gluster.org<br>
>> <a href="http://lists.gluster.org/mailman/listinfo/gluster-users">http://lists.gluster.org/mailman/listinfo/gluster-users</a><br>
><br>
><br>
><br>
><br>
> --<br>
> Pranith<br>
><br>
> _______________________________________________<br>
> Gluster-users mailing list<br>
> Gluster-users@gluster.org<br>
> <a href="http://lists.gluster.org/mailman/listinfo/gluster-users">http://lists.gluster.org/mailman/listinfo/gluster-users</a><br>
_______________________________________________<br>
Gluster-users mailing list<br>
Gluster-users@gluster.org<br>
<a href="http://lists.gluster.org/mailman/listinfo/gluster-users">http://lists.gluster.org/mailman/listinfo/gluster-users</a><br>
</div>
</span></font>
</body>
</html>