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<div class="elementToProof" style="margin-top: 0px; margin-bottom: 0px;"><span style="font-size:12pt;margin:0px;color:black;background-color:white">Hi,</span><br>
<span style="font-size:12pt;margin:0px;color:black;background-color:white">Greetings of the day,</span><br>
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<p class="elementToProof">We checked in GlusterFS documentation for two way replication on three storage devices(nodes). <span style="background-color:rgb(255, 255, 255);display:inline !important" class="ContentPasted1">Please provide any solution for this.</span>
We did not find any straight forward information for this scenario.</p>
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<p class="elementToProof">As per documentation three storage devices(nodes) will work on three way replication which does not match our scaling requirement.</p>
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<p class="elementToProof">Any help is highly appreciated.</p>
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Thanks,</div>
<div style="font-size:12pt;margin:0px;color:black !important;background-color:white !important" class="ContentPasted0 elementToProof">
Maaz Sheikh</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Strahil Nikolov <hunter86_bg@yahoo.com><br>
<b>Sent:</b> Friday, February 3, 2023 4:15 AM<br>
<b>To:</b> gluster-devel@gluster.org <gluster-devel@gluster.org>; gluster-users@gluster.org <gluster-users@gluster.org>; Maaz Sheikh <maaz.sheikh@impetus.com><br>
<b>Cc:</b> Rahul Kumar Sharma <rrsharma@impetus.com>; Sweta Dwivedi <sweta.dwivedi@impetus.com>; Pushpendra Garg <pushpendra.garg@impetus.com><br>
<b>Subject:</b> Re: [Gluster-devel] Regarding Glusterfs file locking</font>
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<div>As far as I remember there are only 2 types of locking in Linux:<br>
- Advisory<br>
- Mandatory<br>
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In order to use mandatory locking, you need to pass the "mand" mount option to the FUSE client(mount -o mand,<my other mount options> ...) and chmod g+s,g-x /<FUSE PATH>/<Target file><br>
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<br>
Best Regards,<br>
Strahil Nikolov<br>
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<div>В сряда, 1 февруари 2023 г., 13:22:59 ч. Гринуич+2, Maaz Sheikh <maaz.sheikh@impetus.com> написа:
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Team, please let us know if u have any feedback.</div>
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<div id="x_yiv5808026394divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Maaz Sheikh<br>
<b>Sent:</b> Wednesday, January 25, 2023 4:51 PM<br>
<b>To:</b> gluster-devel@gluster.org <gluster-devel@gluster.org>; gluster-users@gluster.org <gluster-users@gluster.org><br>
<b>Subject:</b> Regarding Glusterfs file locking</font>
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Hi,</div>
<div class="x_yiv5808026394x_elementToProof" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)">
Greetings of the day,</div>
<div class="x_yiv5808026394x_elementToProof" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)">
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<b>Our configuration is like:</b></div>
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We have installed both glusterFS server and GlusterFS client on node1 as well as node2.<span style="font-size:12pt"> We have mounted node1 volume to both nodes.</span></div>
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<b>Our use case is :</b></div>
<div class="x_yiv5808026394x_elementToProof x_yiv5808026394x_ContentPasted0" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)">
>From glusterFS node 1, we have to take an exclusive lock and open a file (which is a shared file between both the nodes) and we should write/read in that file.<br>
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>From <span class="x_yiv5808026394x_ContentPasted1" style="background-color:rgb(255,255,255); display:inline!important">
glusterFS node 2</span>, we should not be able to read/write that file.<br>
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<br>
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<b>Now the problem we are facing is:</b></div>
<div class="x_yiv5808026394x_elementToProof x_yiv5808026394x_ContentPasted0" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)">
>From node1, we are able to take an exclusive lock and the program has started writing in that shared file.</div>
<div class="x_yiv5808026394x_elementToProof x_yiv5808026394x_ContentPasted0" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)">
>From node2, we are able to read and write on that file which should not happen because node1 has already acquired the lock on that file.</div>
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<br>
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Therefore, requesting you to please provide us a solution asap.</div>
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<br>
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Thanks,</div>
<div class="x_yiv5808026394x_elementToProof" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)">
Maaz Sheikh</div>
<div class="x_yiv5808026394x_elementToProof" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)">
Associate Software Engineer </div>
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Impetus Technologies India </div>
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