<div dir="ltr"><div>Excerpts taken from <a href="https://etherpad.openstack.org/p/shanghai-ptg-cinder">https://etherpad.openstack.org/p/shanghai-ptg-cinder</a></div><div>We discussed two items :</div><div><br></div><div>1/ Improving replication<span class="gmail-" style="margin:0px;padding:1px 0px"></span><br class="gmail-Apple-interchange-newline"><span class="gmail-" style="margin:0px;padding:1px 0px"></span></div><div><div id="gmail-magicdomid251" class="gmail-ace-line" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:"Helvetica Neue",Arial,sans-serif;font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"><ul class="gmail-list-bullet3" style="margin:0px 0px 0px 4.5em;padding:0px;list-style-type:square"><li style="margin:0px;padding:0px"><span class="gmail-" style="margin:0px;padding:1px 0px">When a failover happens volumes are no longer usable in Nova.</span></li></ul></div><div id="gmail-magicdomid252" class="gmail-ace-line" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:"Helvetica Neue",Arial,sans-serif;font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"><ul class="gmail-list-bullet3" style="margin:0px 0px 0px 4.5em;padding:0px;list-style-type:square"><li style="margin:0px;padding:0px"><span class="gmail-" style="margin:0px;padding:1px 0px">Nova should start re-attaching volumes after a failover?</span></li></ul></div><div id="gmail-magicdomid253" class="gmail-ace-line" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:"Helvetica Neue",Arial,sans-serif;font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"><ul class="gmail-list-bullet3" style="margin:0px 0px 0px 4.5em;padding:0px;list-style-type:square"><li style="margin:0px;padding:0px"><span class="gmail-" style="margin:0px;padding:1px 0px">Why can't we detach and attach the volume?  Data that is in flight would be lost.</span></li></ul></div><div id="gmail-magicdomid254" class="gmail-ace-line" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:"Helvetica Neue",Arial,sans-serif;font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"><ul class="gmail-list-bullet3" style="margin:0px 0px 0px 4.5em;padding:0px;list-style-type:square"><li style="margin:0px;padding:0px"><span class="gmail-" style="margin:0px;padding:1px 0px">Question about boot from volume.  In that case the instance is dead anyway because access to the volume has been lost.</span></li></ul></div><div id="gmail-magicdomid255" class="gmail-ace-line" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:"Helvetica Neue",Arial,sans-serif;font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"><ul class="gmail-list-bullet3" style="margin:0px 0px 0px 4.5em;padding:0px;list-style-type:square"><li style="margin:0px;padding:0px"><span class="gmail-" style="margin:0px;padding:1px 0px">Could go through the shutdown, detach, attach, reboot path.</span></li></ul></div><div id="gmail-magicdomid256" class="gmail-ace-line" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:"Helvetica Neue",Arial,sans-serif;font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"><ul class="gmail-list-bullet4" style="margin:0px 0px 0px 6em;padding:0px;list-style-type:disc"><li style="margin:0px;padding:0px"><span class="gmail-" style="margin:0px;padding:1px 0px">Problem is that detach is going to fail.  Need to force it or handle the failure.</span></li></ul></div><div id="gmail-magicdomid257" class="gmail-ace-line" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:"Helvetica Neue",Arial,sans-serif;font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"><ul class="gmail-list-bullet3" style="margin:0px 0px 0px 4.5em;padding:0px;list-style-type:square"><li style="margin:0px;padding:0px"><span class="gmail-" style="margin:0px;padding:1px 0px">We aren't sure that Nova will allow a detach of a boot volume.</span></li></ul></div><div id="gmail-magicdomid258" class="gmail-ace-line" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:"Helvetica Neue",Arial,sans-serif;font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"><ul class="gmail-list-bullet3" style="margin:0px 0px 0px 4.5em;padding:0px;list-style-type:square"><li style="margin:0px;padding:0px"><span class="gmail-" style="margin:0px;padding:1px 0px">Also don't currently have a force detach API.</span></li></ul></div><div id="gmail-magicdomid259" class="gmail-ace-line" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:"Helvetica Neue",Arial,sans-serif;font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"><ul class="gmail-list-bullet3" style="margin:0px 0px 0px 4.5em;padding:0px;list-style-type:square"><li style="margin:0px;padding:0px"><span class="gmail-" style="margin:0px;padding:1px 0px">AGREE:  Need to figure out how to pass the force to os-brick to detach volume and when rebooting a volume.</span></li></ul><div><br></div><div>2/<span class="gmail-" style="margin:0px;padding:1px 0px"> Nova bug for images created from encrypted volumes</span><div id="gmail-magicdomid261" class="gmail-ace-line" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:"Helvetica Neue",Arial,sans-serif;font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"><ul class="gmail-list-bullet2" style="margin:0px 0px 0px 3em;padding:0px;list-style-type:circle"><li style="margin:0px;padding:0px"><span class="gmail-" style="margin:0px;padding:1px 0px">Nova is not creating a new key for encrypted images but the deletion policy metadata can allow a key to be deleted wehn it is still in use by other images or even volumes</span></li></ul></div><div id="gmail-magicdomid262" class="gmail-ace-line" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:"Helvetica Neue",Arial,sans-serif;font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"><ul class="gmail-list-bullet2" style="margin:0px 0px 0px 3em;padding:0px;list-style-type:circle"><li style="margin:0px;padding:0px"><span class="gmail-" style="margin:0px;padding:1px 0px">Nova needs to clone the keys when doing create image.</span></li></ul></div><div id="gmail-magicdomid263" class="gmail-ace-line" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:"Helvetica Neue",Arial,sans-serif;font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"><ul class="gmail-list-bullet2" style="margin:0px 0px 0px 3em;padding:0px;list-style-type:circle"><li style="margin:0px;padding:0px"><span class="gmail-" style="margin:0px;padding:1px 0px">The nova team thinks that we have found a bug that needs to be fixed.  We just need to open a bug.</span></li></ul></div><div id="gmail-magicdomid264" class="gmail-ace-line" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:"Helvetica Neue",Arial,sans-serif;font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"><ul class="gmail-list-bullet2" style="margin:0px 0px 0px 3em;padding:0px;list-style-type:circle"><li style="margin:0px;padding:0px"><span class="gmail-" style="margin:0px;padding:1px 0px">ACTION  Cinder to open a bug against Nova. (can you also ping lyarwood when it's open?)</span></li></ul><div><br></div><div>-S<br></div></div></div></div></div></div>