edit to ops guide doc - tales from the crypt
removed Nova capitalization and changed to OpenStack Compute Referencing to services, use "Compute," instead of "nova” following doc conventions wiki removed extra . that didn’t belong capitalized Internet - per IBM style guide http://www.ibm.com/developerworks/library/styleguidelines/ removed “public” not necessary Change-Id: Iea68f560c9f215a25400629dd1c2ab5b5f640e86
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@ -97,7 +97,7 @@
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instance. This was still true. When the ping reply was
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instance. This was still true. When the ping reply was
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sent from the instance, it should be in a VLAN. True. When
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sent from the instance, it should be in a VLAN. True. When
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it came back to the cloud controller and on its way out to
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it came back to the cloud controller and on its way out to
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the public internet, it should no longer have a VLAN.
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the Internet, it should no longer have a VLAN.
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False. Uh oh. It looked as though the VLAN part of the
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False. Uh oh. It looked as though the VLAN part of the
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packet was not being removed.</para>
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packet was not being removed.</para>
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<para>That made no sense.</para>
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<para>That made no sense.</para>
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@ -119,10 +119,10 @@
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<para>In <filename>nova.conf</filename>, <code>vlan_interface</code>
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<para>In <filename>nova.conf</filename>, <code>vlan_interface</code>
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specifies what interface OpenStack should attach all VLANs
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specifies what interface OpenStack should attach all VLANs
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to. The correct setting should have been:
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to. The correct setting should have been:
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<programlisting>vlan_interface=bond0</programlisting>.</para>
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<programlisting>vlan_interface=bond0</programlisting></para>
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<para>As this would be the server's bonded NIC.</para>
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<para>As this would be the server's bonded NIC.</para>
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<para>vlan20 is the VLAN that the data center gave us for
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<para>vlan20 is the VLAN that the data center gave us for
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outgoing public internet access. It's a correct VLAN and
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outgoing Internet access. It's a correct VLAN and
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is also attached to bond0.</para>
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is also attached to bond0.</para>
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<para>By mistake, I configured OpenStack to attach all tenant
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<para>By mistake, I configured OpenStack to attach all tenant
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VLANs to vlan20 instead of bond0 thereby stacking one VLAN
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VLANs to vlan20 instead of bond0 thereby stacking one VLAN
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@ -268,7 +268,7 @@
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to oversee the development of cyberinfrastructure in
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to oversee the development of cyberinfrastructure in
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Alberta, Canada) deployed an updated OpenStack cloud for
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Alberta, Canada) deployed an updated OpenStack cloud for
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their <link xlink:title="DAIR project"
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their <link xlink:title="DAIR project"
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xlink:href="http://www.canarie.ca/en/dair-program/about"
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xlink:href="http://www.canarie.ca/cloud/"
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>DAIR project</link>
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>DAIR project</link>
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(http://www.canarie.ca/en/dair-program/about). A few days
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(http://www.canarie.ca/en/dair-program/about). A few days
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into production, a compute node locks up. Upon rebooting
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into production, a compute node locks up. Upon rebooting
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@ -334,7 +334,7 @@
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<para>A feature was introduced in Essex to periodically check
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<para>A feature was introduced in Essex to periodically check
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and see if there were any <code>_base</code> files not in use.
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and see if there were any <code>_base</code> files not in use.
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If there
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If there
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were, Nova would delete them. This idea sounds innocent
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were, OpenStack Compute would delete them. This idea sounds innocent
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enough and has some good qualities to it. But how did this
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enough and has some good qualities to it. But how did this
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feature end up turned on? It was disabled by default in
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feature end up turned on? It was disabled by default in
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Essex. As it should be. It was <link
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Essex. As it should be. It was <link
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@ -547,7 +547,7 @@ HTTP/1.1" status: 200 len: 931 time: 3.9426181
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<para>So, I found myself wondering what changed in the EC2 API on
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<para>So, I found myself wondering what changed in the EC2 API on
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Havana that might cause this to happen. Was it a bug or a normal
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Havana that might cause this to happen. Was it a bug or a normal
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behavior that I now need to work around?</para>
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behavior that I now need to work around?</para>
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<para>After digging into the Nova code, I noticed two areas in
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<para>After digging into the nova (OpenStack Compute) code, I noticed two areas in
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<filename>api/ec2/cloud.py</filename> potentially impacting my
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<filename>api/ec2/cloud.py</filename> potentially impacting my
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system:</para>
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system:</para>
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<programlisting language="python">
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<programlisting language="python">
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@ -570,4 +570,4 @@ HTTP/1.1" status: 200 len: 931 time: 3.9426181
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<para>Performance increased greatly after deleting the old records and
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<para>Performance increased greatly after deleting the old records and
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my new deployment continues to behave well.</para>
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my new deployment continues to behave well.</para>
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</section>
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</section>
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</appendix>
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</appendix>
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