Hi Vish- Thanks for the reply.
I need much more info on these. [1] Where this Metadata comes into picture., while launching the instance, or after instance is launched ? [2] In the Essex release, how can he see what metadata is being prepared and used ? [3] What is the use of this metadata. [4] In scenario of Nova+Quantum+OVS (Essex Release) at what places this metadata is used, How is it prepared, where it is parsed and understood, What data does it contain? Though I have too many questions, I'm in need of these since, Want to understand the ROLE of metadata concept? Kindly please help me understand the same. -- TNS On Fri, Aug 31, 2012 at 9:21 PM, Vishvananda Ishaya <vishvana...@gmail.com>wrote: > Server Metadata: > http://docs.openstack.org/api/openstack-compute/2/content/Server_Metadata-d1e2529.html > > More Metadata Info: > http://docs.openstack.org/api/openstack-compute/2/content/MetadataSection.html > > Personalities: > http://docs.openstack.org/api/openstack-compute/2/content/Server_Personality-d1e2543.html > > Vish > > On Aug 31, 2012, at 2:52 AM, Trinath Somanchi <trinath.soman...@gmail.com> > wrote: > > Hi- > > While going through the source code of the Nova API, i came across the > following comments. > > class CommonDeserializer(wsgi.MetadataXMLDeserializer): > """ > Common deserializer to handle xml-formatted server create > requests. > > Handles standard server attributes as well as optional metadata > and personality attributes > """ > > metadata_deserializer = common.MetadataXMLDeserializer() > > def _extract_personality(self, server_node): > """Marshal the personality attribute of a parsed request""" > node = self.find_first_child_named(server_node, "personality") > if node is not None: > personality = [] > for file_node in self.find_children_named(node, "file"): > item = {} > if file_node.hasAttribute("path"): > item["path"] = file_node.getAttribute("path") > item["contents"] = self.extract_text(file_node) > personality.append(item) > return personality > else: > return None > > > .............. > ................. > > Just very interested to know, what kind of metadata is possible here and > what doest this PERSONALITY attribute mean. > > Can any me help understand the role of METADATA and its attributes with an > example. Even When I brought up the instance, when I view the logs, haven't > found any information regarding the metadata. > > Please help me in this regard. > > Thanking you all. > > -- > Regards, > ---------------------------------------------- > Trinath Somanchi, > +91 9866 235 130 > > _______________________________________________ > OpenStack-dev mailing list > openstack-...@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > > > _______________________________________________ > OpenStack-dev mailing list > openstack-...@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > -- Regards, ---------------------------------------------- Trinath Somanchi, +91 9866 235 130
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