<div dir="ltr"><div><div><div><div>Hi,<br><br></div>Work is in progress for this (and going a bit slow at the moment because of other priorities).<br></div><br></div><div>At the moment we support sharding only for VM image store use-case - most common large file + single writer use case we know of.<br><br></div>Just curious, what is the use case where you want to use shard+EC?<br><br></div>-Krutika<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, May 4, 2017 at 4:05 PM, Pranith Kumar Karampuri <span dir="ltr"><<a href="mailto:pkarampu@redhat.com" target="_blank">pkarampu@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>+Krutika<br><br></div>Krutika started work on this. But it is very long term. Not a simple thing to do.<br><div class="gmail_extra"><div><div class="h5"><br><div class="gmail_quote">On Thu, May 4, 2017 at 3:53 PM, Ankireddypalle Reddy <span dir="ltr"><<a href="mailto:areddy@commvault.com" target="_blank">areddy@commvault.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Pranith,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> Thanks. Is there any work in progress to add this support.<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks and Regards,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Ram<u></u><u></u></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Pranith Kumar Karampuri [mailto:<a href="mailto:pkarampu@redhat.com" target="_blank">pkarampu@redhat.com</a>]
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<b>Sent:</b> Thursday, May 04, 2017 6:17 AM</span></p><div><div class="m_-4186320311477106088h5"><br>
<b>To:</b> Ankireddypalle Reddy<br>
<b>Cc:</b> Gluster Devel (<a href="mailto:gluster-devel@gluster.org" target="_blank">gluster-devel@gluster.org</a>); <a href="mailto:gluster-users@gluster.org" target="_blank">gluster-users@gluster.org</a><br>
<b>Subject:</b> Re: [Gluster-devel] Enabling shard on EC<u></u><u></u></div></div><p></p><div><div class="m_-4186320311477106088h5">
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<p class="MsoNormal">On Thu, May 4, 2017 at 3:43 PM, Ankireddypalle Reddy <<a href="mailto:areddy@commvault.com" target="_blank">areddy@commvault.com</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Pranith,</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> Thanks. Does it mean that a given file can be written by only one client at a time.
If multiple clients try to access the file in write mode, does it lead to any kind of data inconsistencies.</span><u></u><u></u></p>
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<p class="MsoNormal">We only tested it for single writer cases such as VM usecases. We need to bring in transaction framework for sharding to work with multiple writers.<u></u><u></u></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks and Regards,</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Ram</span><u></u><u></u></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Pranith Kumar Karampuri [mailto:<a href="mailto:pkarampu@redhat.com" target="_blank">pkarampu@redhat.com</a>]
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<b>Sent:</b> Thursday, May 04, 2017 6:07 AM<br>
<b>To:</b> Ankireddypalle Reddy<br>
<b>Cc:</b> Gluster Devel (<a href="mailto:gluster-devel@gluster.org" target="_blank">gluster-devel@gluster.org</a>);
<a href="mailto:gluster-users@gluster.org" target="_blank">gluster-users@gluster.org</a><br>
<b>Subject:</b> Re: [Gluster-devel] Enabling shard on EC</span><u></u><u></u></p>
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<p class="MsoNormal">It is never been tested. That said, I don't see any missing pieces that we know of for it to work. Please note that sharding works only for single writer cases at the moment. Do
let us know if you find any problems and we will fix them.<u></u><u></u></p>
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<p class="MsoNormal">On Wed, May 3, 2017 at 2:17 PM, Ankireddypalle Reddy <<a href="mailto:areddy@commvault.com" target="_blank">areddy@commvault.com</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal">Hi,<u></u><u></u></p>
<p class="MsoNormal"> Are there any known negatives of enabling shard on EC. Is this a recommended configuration?.<u></u><u></u></p>
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<p class="MsoNormal">Thanks and Regards,<u></u><u></u></p>
<p class="MsoNormal">Ram<u></u><u></u></p>
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<div>***************************Leg<wbr>al Disclaimer********************<wbr>*******<div>"This communication may contain confidential and privileged material for the<div>sole use of the intended recipient. Any unauthorized review, use or distribution<div>by others is strictly prohibited. If you have received the message by mistake,<div>please advise the sender by reply email and delete the message. Thank you."<div>******************************<wbr>******************************<wbr>**********</div>
</div></div></div></div></div></div></div></div></blockquote></div><br><br clear="all"><br></div></div><span class="HOEnZb"><font color="#888888">-- <br><div class="m_-4186320311477106088gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Pranith<br></div></div>
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