<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif;"><div>Got it thanks very much, Sampath!</div><div><br></div><span id="OLK_SRC_BODY_SECTION"><div style="font-family:Calibri; font-size:11pt; text-align:left; color:black; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt"><span style="font-weight:bold">From: </span> Sam P <<a href="mailto:sam47priya@gmail.com">sam47priya@gmail.com</a>><br><span style="font-weight:bold">Reply-To: </span> "OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>><br><span style="font-weight:bold">Date: </span> Saturday, October 6, 2018 at 8:29 PM<br><span style="font-weight:bold">To: </span> "OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>><br><span style="font-weight:bold">Subject: </span> Re: [openstack-dev] [masakari][congress] what is a host?<br></div><div><br></div><blockquote id="MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style="BORDER-LEFT: #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hi Eric,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"> </div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">(1) "<span style="font-family: Arial, Helvetica, sans-serif;">virtual machine" is bug. This need to be corrected as physical machine or hypervisor.</span></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span style="font-family: Arial, Helvetica, sans-serif;"> Masakari host is a physical host/hypervisor. I will correct this.</span></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span style="font-family: Arial, Helvetica, sans-serif;"><br></span></div><div class="gmail_default"><span style="font-family: Arial, Helvetica, sans-serif;">(2) Not through masakari APIs. You have to add metadata key 'HA_Enabled=True' to each VM by using nova API.</span></div><div class="gmail_default"><span style="font-family: Arial, Helvetica, sans-serif;"> Masakeri monitors check for failures and send notification to masakari API if detected any failure (i.e host, VM or process failures).</span></div><div class="gmail_default"> In host failure (hypervisor down) scenario, Masakari engine get the VM list on that hypervisor and start evacuate VMs.</div><div class="gmail_default"> Operator can configure masakari to evacuate all VMs or only the VMs with the metadata key 'HA_Enabled=True.</div><div class="gmail_default"> Please see the config file [1] section <span class="gmail-p" style="color:rgb(85,85,85);font-size:1.1em">[</span><span class="gmail-n" style="color:rgb(85,85,85);font-size:1.1em">host_failure</span><span class="gmail-p" style="color:rgb(85,85,85);font-size:1.1em">] for more details.</span></div><div class="gmail_default"><span class="gmail-p" style="color:rgb(85,85,85);font-size:1.1em"><br></span></div><div class="gmail_default"><span class="gmail-p" style="color:rgb(85,85,85);font-size:1.1em">Let me know if you need more info on this.</span></div><div class="gmail_default"><span class="gmail-p" style="color:rgb(85,85,85);font-size:1.1em"><br></span></div><div class="gmail_default"><span class="gmail-p" style="color:rgb(85,85,85);font-size:1.1em">[1] <a href="https://docs.openstack.org/masakari/latest/sample_config.html">https://docs.openstack.org/masakari/latest/sample_config.html</a></span></div><div class="gmail_default"><span class="gmail-p" style="color:rgb(85,85,85);font-size:1.1em"><br></span></div><div class="gmail_default">---<font color="#333333" face="Times New Roman"><span style="font-size:14px;line-height:21.6px"> R</span></font><span style="color: rgb(51, 51, 51); font-family: 'Times New Roman'; font-size: 14px; line-height: 21.6px;">egards,</span><br></div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div>Sampath</div><div><br></div></div></div></div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr">On Sun, Oct 7, 2018 at 8:55 AM Eric K <<a href="mailto:ekcs.openstack@gmail.com">ekcs.openstack@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all, I'm working on a potential integration between masakari and<br>
congress. But I am stuck on some basic usage questions I could not<br>
answer in my search of docs and demos. Any clarification or references<br>
would be much appreciated!<br><br>
1. What does a host refer to in masakari API? Here's the explanation in API doc:<br>
"Host can be any kind of virtual machine which can have compute<br>
service running on it."<br>
(<a href="https://developer.openstack.org/api-ref/instance-ha/#hosts-hosts" rel="noreferrer" target="_blank">https://developer.openstack.org/api-ref/instance-ha/#hosts-hosts</a>)<br><br>
So is a masakari host usually a nova instance/server instead of a<br>
host/hypervisor?<br><br>
2. Through the masakari api, how does one go about configuring a VM to<br>
be managed by masakari instance HA?<br><br>
Thanks so much!<br><br>
Eric Kao<br><br>
__________________________________________________________________________<br>
OpenStack Development Mailing List (not for usage questions)<br>
Unsubscribe: <a href="http://OpenStack-dev-request@lists.openstack.org?subject:unsubscribe" rel="noreferrer" target="_blank">OpenStack-dev-request@lists.openstack.org?subject:unsubscribe</a><br><a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev" rel="noreferrer" target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev</a><br></blockquote></div>
__________________________________________________________________________
OpenStack Development Mailing List (not for usage questions)
Unsubscribe: <a href="mailto:OpenStack-dev-request@lists.openstack.org">OpenStack-dev-request@lists.openstack.org</a>?subject:unsubscribe
<a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev</a>
</blockquote></span></body></html>