<div dir="ltr"><p class="MsoNormal"><span lang="EN-US">Hi all,</span></p>

<p class="MsoNormal"><span lang="EN-US">I'm
considering to extend the Nova-Compute API in order to provide
image-prefetching capabilities to OS.</span></p>

<p class="MsoNormal"><span lang="EN-US">In order to
allow image prefetching, I ended up with the need to add three different APIs
on the nova-compute nodes:</span></p>

<p class="MsoNormal"><span lang="EN-US">  1. Trigger an image prefetching</span></p>

<p class="MsoNormal"><span lang="EN-US">  2. List prefetched images</span></p>

<p class="MsoNormal"><span lang="EN-US">  3. Delete a prefetched image</span></p>

<p class="MsoNormal"><span lang="EN-US"> </span></p>

<p class="MsoNormal"><span lang="EN-US">About the
point 1 I saw I can re-use the libvirt driver function _create_image() to
trigger the image prefetching. However, this approach will not store any
information about the stored image locally. This leads to an issue: how do I retrieve
a list of already fetched images? A quick and simple possibility would be
having a local file, storing information about the fetched images. Would it be
acceptable? Is there any best practice in OS community?</span></p>

<p class="MsoNormal"><span lang="EN-US"> </span></p>

<p class="MsoNormal"><span lang="EN-US">Any ideas?</span></p>

<p class="MsoNormal"><span lang="EN-US"><br></span></p><p class="MsoNormal"><span lang="EN-US">Ty,</span></p><p class="MsoNormal"><span lang="EN-US">Al.</span></p><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr">Dott. Alberto Geniola<div><br><div><img src="https://docs.google.com/uc?export=download&id=0B2LZUBlzed4yMGFGeUFheFZJbDg&revid=0B2LZUBlzed4yS2lUSUlSZjE1aHFuUi9ZWkdEZWNLdCt0cGpvPQ">  <a href="mailto:albertogeniola@gmail.com" target="_blank">albertogeniola@gmail.com</a></div><div><img src="https://docs.google.com/uc?export=download&id=0B2LZUBlzed4yWl9nWThBMll5R1E&revid=0B2LZUBlzed4yK0ZwOG94RlA3bWViRnJPMWZLbWV1UUdDNG1vPQ">  +39-346-6271105</div><div><span style="font-size:12.8px"><img src="https://docs.google.com/uc?export=download&id=0B2LZUBlzed4yeVowYkUwekV6M2c&revid=0B2LZUBlzed4yZU53V0FoY1JtdHVUTEU2dDNmeFl0c1J0TTJVPQ">  <a href="https://www.linkedin.com/in/albertogeniola" target="_blank">https://www.linkedin.com/in/albertogeniola</a></span><br></div><div><br></div><div>Web: <a href="http://www.hw4u.it" target="_blank">http://www.hw4u.it</a></div></div></div></div>
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