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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Carlos,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I see. I still think this will cause frequent pain down the
road. At least, please consider using a specific error code for this case as
all I currently get is a non-descript DB layer error message.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I’m also unsure about your example, i.e. having to modify
templates when deleting and re-creating an image. Since there is no guarantee
that the old image with name “Ubuntu” has the same features as the
new image I’m not sure old templates should automatically use new images.
There isn’t even any guarantee that the two images were created by the
same users.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>My preferred solution would be to use the image ID for all
references to an image, including making it a mandatory field in the vm
template, if an image is to be used.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Carsten <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> carlos.martin.sanchez@gmail.com
[mailto:carlos.martin.sanchez@gmail.com] <b>On Behalf Of </b>Carlos Martín
Sánchez<br>
<b>Sent:</b> Wednesday, 29 September 2010 20:36<br>
<b>To:</b> Friedrich, Carsten (ICT Centre, Acton)<br>
<b>Cc:</b> users@lists.opennebula.org<br>
<b>Subject:</b> Re: [one-users] OpenNebula 2 RC: Why do image names have to be
unique?<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Hi <span class=apple-style-span><span style='font-size:
10.0pt;font-family:"Arial","sans-serif"'>Carsten,</span></span><o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Yes, it is necessary if you want to be able to use
the image name's in the template, like<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>DISK = [ IMAGE = "Ubuntu Lucic" ]<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Otherwise, you are forcing the users to use images by their
IMAGE_ID, which is an internal ID that can change at any time, e.g., you define
templates for your IMAGE "Ubuntu" and a VM that uses
"Ubuntu", but the VM template has be modified if you delete and
register again some time later that IMAGE)<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Regards,<o:p></o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'>Carlos Martín, Cloud Technology
Engineer/Researcher<br>
DSA Research Group: web <a href="http://dsa-research.org" target="_blank">http://dsa-research.org</a>
and blog <a href="http://blog.dsa-research.org" target="_blank">http://blog.dsa-research.org</a><br>
OpenNebula Open Source Toolkit for Cloud Computing: <a
href="http://www.OpenNebula.org" target="_blank">http://www.OpenNebula.org</a><br>
<br>
<o:p></o:p></p>
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<p class=MsoNormal>On 29 September 2010 07:20,
<Carsten.Friedrich@csiro.au> wrote:<o:p></o:p></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US>Trying to insert a second image with the same name into the image
repository creates an error on the database layer. Since images are already
uniquely defined by their id, and it is not unlikely that different users may
choose the same name for an image, e g. “Ubuntu Lucid”, I’m
not sure this restriction is doing more good than harm (by confusing users
through hard to interpret error messages). Is it really necessary?</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US>Carsten</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US> </span><o:p></o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><br>
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<p class=MsoNormal><o:p> </o:p></p>
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