<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div>Hey,</div><div><br></div>This is a scheduling issue. It means that Nova scheduler was unable to find any nodes matching the requirements for your VM.<div><br></div><div>You can enable debug in nova.conf and re-try. The scheduler debug logs will tell you which filter isn’t returning any hosts.</div><div><br></div><div>Some helpful info for you here:</div><div><div style="display: block;"><div style="-webkit-user-select: all; -webkit-user-drag: element; display: inline-block;" class="apple-rich-link" draggable="true" role="link" data-url="https://stackoverflow.com/a/50447850"><a style="border-radius:10px;font-family:-apple-system, Helvetica, Arial, sans-serif;display:block;-webkit-user-select:none;width:228px;user-select:none;-webkit-user-modify:read-only;user-modify:read-only;overflow:hidden;text-decoration:none;" class="lp-rich-link" rel="nofollow" href="https://stackoverflow.com/a/50447850" dir="ltr" role="button" draggable="false" width="228"><table style="table-layout:fixed;border-collapse:collapse;width:228px;background-color:#E5E6E9;font-family:-apple-system, Helvetica, Arial, sans-serif;" class="lp-rich-link-emailBaseTable" cellpadding="0" cellspacing="0" border="0" width="228"><tbody><tr><td vertical-align="center" align="center"><img style="width:228px;filter:brightness(0.97);height:228px;" width="228" height="228" draggable="false" class="lp-rich-link-mediaImage" alt="apple-touch-icon@2.png" src="cid:22D841C8-4EF4-4969-99A1-FE7E96248D57"></td></tr><tr><td vertical-align="center"><table bgcolor="#E5E6E9" cellpadding="0" cellspacing="0" width="228" style="font-family:-apple-system, Helvetica, Arial, sans-serif;table-layout:fixed;background-color:rgba(229, 230, 233, 1);" class="lp-rich-link-captionBar"><tbody><tr><td style="padding:8px 0px 8px 0px;" class="lp-rich-link-captionBar-textStackItem"><div style="max-width:100%;margin:0px 16px 0px 16px;overflow:hidden;" class="lp-rich-link-captionBar-textStack"><div style="word-wrap:break-word;font-weight:500;font-size:12px;overflow:hidden;text-overflow:ellipsis;text-align:left;" class="lp-rich-link-captionBar-textStack-topCaption-leading"><a rel="nofollow" href="https://stackoverflow.com/a/50447850" style="text-decoration: none" draggable="false"><font color="#272727" style="color: rgba(0, 0, 0, 0.847059);">NoValidHost: No valid host was found. There are not enough hosts available</font></a></div><div style="word-wrap:break-word;font-weight:400;font-size:11px;overflow:hidden;text-overflow:ellipsis;text-align:left;" class="lp-rich-link-captionBar-textStack-bottomCaption-leading"><a rel="nofollow" href="https://stackoverflow.com/a/50447850" style="text-decoration: none" draggable="false"><font color="#808080" style="color: rgba(0, 0, 0, 0.498039);">stackoverflow.com</font></a></div></div></td></tr></tbody></table></td></tr></tbody></table></a></div></div></div><div><br></div><div><br></div><div>Regards,</div><div><br id="lineBreakAtBeginningOfMessage"><div>
<div>Brendan Shephard</div><div>Senior Software Engineer</div><div>Red Hat Australia</div><div><br></div><br class="Apple-interchange-newline">
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<div><br><blockquote type="cite"><div>On 9 Sep 2023, at 3:26 pm, - <kjme001@gmail.com> wrote:</div><br class="Apple-interchange-newline"><div><div dir="ltr"><p style="margin:0px 0px 1.1em;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-variant-alternates:inherit;font-stretch:inherit;line-height:inherit;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI Adjusted","Segoe UI","Liberation Sans",sans-serif;font-kerning:inherit;font-feature-settings:inherit;font-size:15px;vertical-align:baseline;box-sizing:inherit;clear:both;color:rgb(35,38,41)">I added a new node to the OpenStack cluster and when creating a new instance I have this error. Maybe someone can tell me what else I can check? No valid host was found. There are not enough hosts available.</p><pre class="gmail-lang-none gmail-s-code-block" style="margin-top:0px;margin-bottom:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-variant-alternates:inherit;font-stretch:inherit;font-kerning:inherit;font-feature-settings:inherit;vertical-align:baseline;box-sizing:inherit;width:auto;max-height:600px;overflow:auto">No valid host was found. There are not enough hosts available.<br>Kod<br>500<br><br>Traceback (most recent call last): File "/usr/lib/python3/dist-packages/nova/conductor/manager.py", line 1548, in schedule_and_build_instances host_lists = self._schedule_instances(context, request_specs[0], File "/usr/lib/python3/dist-packages/nova/conductor/manager.py", line 908, in _schedule_instances host_lists = self.query_client.select_destinations( File "/usr/lib/python3/dist-packages/nova/scheduler/client/query.py", line 41, in select_destinations return self.scheduler_rpcapi.select_destinations(context, spec_obj, File "/usr/lib/python3/dist-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations return cctxt.call(ctxt, 'select_destinations', **msg_args) File "/usr/lib/python3/dist-packages/oslo_messaging/rpc/client.py", line 189, in call result = self.transport._send( File "/usr/lib/python3/dist-packages/oslo_messaging/transport.py", line 123, in _send return self._driver.send(target, ctxt, message, File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in send return self._send(target, ctxt, message, wait_for_reply, timeout, File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 681, in _send raise result nova.exception_Remote.NoValidHost_Remote: No valid host was found. There are not enough hosts available. Traceback (most recent call last): File "/usr/lib/python3/dist-packages/oslo_messaging/rpc/server.py", line 241, in inner return func(*args, **kwargs) File "/usr/lib/python3/dist-packages/nova/scheduler/manager.py", line 223, in select_destinations selections = self._select_destinations( File "/usr/lib/python3/dist-packages/nova/scheduler/manager.py", line 250, in _select_destinations selections = self._schedule( File "/usr/lib/python3/dist-packages/nova/scheduler/manager.py", line 416, in _schedule self._ensure_sufficient_hosts( File "/usr/lib/python3/dist-packages/nova/scheduler/manager.py", line 455, in _ensure_sufficient_hosts raise exception.NoValidHost(reason=reason) nova.exception.NoValidHost: No valid host was found. There are not enough hosts available.<br>Utworzono<br><br></pre></div>
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