openstack/operations-guide
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Ops: Update Compute Node Failure section with Neutron content

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Adding content describing how to fix the Neutron ML2 database in the
case of a total compute node failure.

Change-Id: I4712f604f798c6c9ebb6f9d8d82b63d8ac2ed599
Closes-Bug: #1282956
This commit is contained in:
Andreas Scheuring 2016-03-07 18:13:18 +01:00
parent 8588c56401
commit 610019c454
1 changed files with 11 additions and 0 deletions
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11
doc/openstack-ops/ch_ops_maintenance.xml
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@ -562,6 +562,17 @@ inner join nova.instances on cinder.volumes.instance_uuid=nova.instances.uuid
<programlisting><?db-font-size 65%?>mysql&gt; update instances set host = 'c02.example.com' where host = \
'c01.example.com' and deleted = 0;</programlisting>
<para>If you're using the Networking service ML2 plug-in, update the
Networking service database to indicate that all ports that
used to be hosted on c01.example.com are now hosted on
c02.example.com:</para>
<programlisting><?db-font-size 65%?>mysql&gt; update ml2_port_bindings set host = 'c02.example.com' where host = \
'c01.example.com';</programlisting>
<programlisting><?db-font-size 65%?>mysql&gt; update ml2_port_binding_levels set host = 'c02.example.com' where host = \
'c01.example.com';</programlisting>
<para>After that, use the <literal>nova</literal> command to reboot all
instances that were on c01.example.com while regenerating their XML
files at the same time:</para>