<div dir="ltr">Hi!<br><br>I guess you hit <a href="https://bugs.launchpad.net/neutron/+bug/1503342">https://bugs.launchpad.net/neutron/+bug/1503342</a>, seems we need to reopen it. <br><br>I can only suggest to create migration manually   "neutron-db-manage --config-file /etc/neutron/neutron.conf revision -m "description of revision" --contact/expand.<br>Then you will see path to file which was generated, you can edit this file and add operation that you need.<br><br></div><br><div class="gmail_quote"><div dir="ltr">On Thu, Sep 29, 2016 at 12:19 PM Alex Stafeyev <<a href="mailto:astafeye@redhat.com">astafeye@redhat.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr" class="gmail_msg"><div class="m_-1996963848019239272gmail_signature gmail_msg"><div dir="ltr" class="gmail_msg"><div class="gmail_msg"><div class="gmail_msg"><div style="font-size:12.8000001907349px" class="gmail_msg">Hi </div><div style="font-size:12.8000001907349px" class="gmail_msg"> </div><div style="font-size:12.8000001907349px" class="gmail_msg">I am trying to execute the lbaas db upgrade procedure but I have several question regarding this. </div><div style="font-size:12.8000001907349px" class="gmail_msg"><br class="gmail_msg"></div><div style="font-size:12.8000001907349px" class="gmail_msg">From the patch: </div><div style="font-size:12.8000001907349px" class="gmail_msg"><br class="gmail_msg"></div><div style="font-size:12.8000001907349px" class="gmail_msg">I moved to /neutron-lbaas/neutron_lbaas/db/migration </div><div style="font-size:12.8000001907349px" class="gmail_msg"><br class="gmail_msg"></div><div style="font-size:12.8000001907349px" class="gmail_msg"><br class="gmail_msg"></div><div style="font-size:12.8000001907349px" class="gmail_msg"> - Create a revision file</div><div style="font-size:12.8000001907349px" class="gmail_msg">I executed "neutron-db-manage revision -m "description of revision" --autogenerate" </div><div style="font-size:12.8000001907349px" class="gmail_msg"><br class="gmail_msg"></div><div style="font-size:12.8000001907349px" class="gmail_msg">At this point I saw an error: </div><div style="font-size:12.8000001907349px" class="gmail_msg">ERROR [alembic.util.messaging] Multiple heads are present; please specify the head revision on which the new revision should be based, or perform a merge.</div><div style="font-size:12.8000001907349px" class="gmail_msg">  FAILED: Multiple heads are present; please specify the head revision on which the new revision should be based, or perform a merge.</div><div style="font-size:12.8000001907349px" class="gmail_msg">[</div><div style="font-size:12.8000001907349px" class="gmail_msg"> but checking history and migration  ( neutron-db-manage check_migration and neutron-db-manage history) I saw no error.</div><div style="font-size:12.8000001907349px" class="gmail_msg"><br class="gmail_msg"></div><div style="font-size:12.8000001907349px" class="gmail_msg">No files seemed to be generated. </div><div style="font-size:12.8000001907349px" class="gmail_msg"><br class="gmail_msg"></div><div style="font-size:12.8000001907349px" class="gmail_msg"> - Edit the created file and fill the content properly with this file </div><div style="font-size:12.8000001907349px" class="gmail_msg">This step is not clear to me ^</div><div style="font-size:12.8000001907349px" class="gmail_msg"> - Run alembic upgrade head</div><div style="font-size:12.8000001907349px" class="gmail_msg">What is the commend for that? (neutron-db-manage upgrade ? Did , fails)</div><div style="font-size:12.8000001907349px" class="gmail_msg"><br class="gmail_msg"></div><div style="font-size:12.8000001907349px" class="gmail_msg"> - Run the migration upgrade code</div><div style="font-size:12.8000001907349px" class="gmail_msg">what is the best way to execute the command? ( python the_script.py?)</div><div style="font-size:12.8000001907349px" class="gmail_msg"><br class="gmail_msg"></div><div style="font-size:12.8000001907349px" class="gmail_msg">Kind regards</div></div></div></div></div>
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</blockquote></div><div dir="ltr">-- <br></div><div data-smartmail="gmail_signature"><div dir="ltr">Regards,<br>Ann Taraday</div></div>